CN104105145B - Method for user device switching, apparatus and system during a kind of base station configuration change - Google Patents
Method for user device switching, apparatus and system during a kind of base station configuration change Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/22—Performing reselection for specific purposes for handling the traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention discloses method for user device switching during a kind of base station configuration change, apparatus and system, it is related to the communication technology, when determining to need to perform cell splitting or merge in base station, base station sends a notification message to adjacent base station, the information and the information for the cell to be generated for the home cell that divide or merge are carried in the notification message, UE switchings are carried out by adjacent base station according to the notification message to prepare, due to containing the RRC reconstruction informations of cell after the cell to be generated or merging in handover request signaling, so the base station for occurring cell splitting or merging can be according to the RRC connections of these information successful reconstitutions, avoid conversation loss, reduce influence of the base station configuration change to QoS of customer.
Description
Technical field
The present invention relates to the communication technology, more particularly to a kind of method for user device switching during base station configuration change, device
And system.
Background technology
In mobile communication system, with the introducing of active antenna (Active Antenna System, AAS) technology, net
Network by dynamic cell splitting or can be merged and improve or reduce power system capacity based on actual load condition, reach with
The purpose for needing and becoming.But, dynamic cell splitting or merging mean the change of network topology, and it is general that this can increase handoff failure
Rate, reduces network mobility performance.
Specifically, AAS is generally designed to include multiple different lobe widths of limited quantity.AAS can be controlled down
Wave beam and angle of declination can be with a more preferable resolution, and in some specific scenes for inclination angle and lobe width
It is adjusted according to the business model of user, so that whole network performance is maximized.Angle of declination and beam angle control
Concept can be extended in such as cell splitting technology.Cause cell in water by adjustment modes in active antenna system
Flat or vertical direction enters line splitting to produce the effect of cell splitting.
The function is mainly characterized by a cell splitting in vertical plane or horizontal plane into two cells, and two with frequency
Cell can have different inclination angles, beam shape and covering radius, but with identical frequency, so as to improve resource
Utilization rate.The function be primarily adapted for use in some frequencies it is limited and with high power capacity demand region, such as Tall Office Building, street
Etc. covering scene.Due to being multiplexed original running time-frequency resource, despite the presence of some interference and the loss of switching, but still can be with
Effectively lifted cell capacity, and if division after two cells transmission power all with division before cell transmitting work(
In the case of rate identical, also it is had a certain upgrade for the coverage effect of outer cell.Fig. 1 gives active antenna and vertically divided
Topological structure when being cleaved into two cells.
In E-UTRAN system standard specifications, switching set-up procedure is defined in X2 interface, as shown in Figure 2 a and 2 b,
When serving BS is that some UE triggering X2 switchings prepare, serving BS will be sent by X2 interface to base station where Target cell
Handover request（HANDOVER REQUEST）Message, target BS is received after handover request, is that UE sets up context, according to request
UE RABs QoS（Quality of Service, quality of service）Value distribution resource, and configuration related UE
Information is saved in UE contexts.If resource allocation success, returns to Handover Request Acknowledge (HANDOVER REQUEST
ACKNOWLEDGE) message；If resource allocation fails, return to switching and prepare failure (HANDOVER PREPARATION
FAILURE) message.
In E-UTRAN system standard specifications, when switching over preparation, the handover request that source eNB is sent to target eNB
UE contextual information is carried in signaling, wherein the information rebuild for UE RRC is contained, can be by such as when implementing
Under type is realized：
Handover preparation information（HandoverPreparationInformation）, the message exists for transfer destination base station
The E-UTRA rrc messages that switching is used when preparing, including UE ability informations.
From source base station/source access network to target BS：
AS-Context（AS contexts）, the local E-UTRAN contexts that this information is used for needed for transfer destination base station.
Include the cell corresponding shortMAC-I and K of one group of target BS controleNB*, they are UE in these cells
Required information during successful reconstitution.
Key-eNodeB-Star
Parameter KeNB*: See TS 33.401 [32, 7.2.8.4]. This parameter is only
used for X2 handover, and for S1 handover, it shall be ignored by target eNB.
ReestablishmentInfo field descriptions
sourcePhyCellId
The physical cell identity of the source PCell, used to determine the
UE context in the target eNB at re-establishment.
targetCellShortMAC-I
The ShortMAC-I for the handover target PCell, in order for potential
re-establishment to succeed.
For RRC（Radio Resource Control, wireless heterogeneous networks）The information of reconstruction
（ReestablishmentInfo）In, except the information comprising Target cell, it can also include and belong to the other small of target BS
The information in area（additionalReestabInfoList）, the purposes of this information is, once UE handoff failures, and have selected
Other cells of the non-targeted cell of target BS attempt RRC connection reconstructions, it is ensured that the success of RRC connection reconstructions, so may be used
With prevent UE because of handoff failure call drop, the influence to customer service is reduced to minimum.
It can be seen that, after base station is carried out cell splitting or merged using AAS technologies, the topology of network is changed, i.e. the region
The neighbouring relations of interior minizone are changed, and this necessarily affects UE switching, reduce the performance of handoffs of network.For example,
Before cell splitting, adjacent base station triggers the switching to Target cell to a UE, and UE is when attempting access target, Target cell
It has been divided that, UE positions are the new MPS process occurred after being divided by the Target cell, due to being included in switching command
Be former Target cell information, UE can not recognize new cell, as a result can not be linked into new cell, cause handoff failure.Switching
After failure, because the signal of new cell is most strong, UE selects this new cell to attempt RRC connection reconstructions, and due to base station, this is not new
The reconstruction information of cell, RRC connection reconstructions failure, UE enters IDLE（It is idle）State, causes call drop, the service of user is caused compared with
The influence of difference.
The content of the invention
Method for user device switching, apparatus and system during a kind of embodiment of the present invention base station configuration change of offer, to subtract
Influence of the small base station configuration change to QoS of customer.
A kind of method for user device switching during base station configuration change, including：
Base station determines to need to perform cell splitting or merging；
Base station sends a notification message to adjacent base station, in the notification message carry to divide or merge it is local small
The information of the information in area and the cell to be generated, UE switchings are carried out by adjacent base station according to the notification message.
A kind of method for user device switching during base station configuration change, including：
Before preparing for user equipment (UE) triggering switching, the notice for receiving the base station transmission for performing cell splitting or merging disappears
The information and the information for the cell to be generated for the home cell that divide or merge are carried in breath, the notification message；
Switched over according to the notification message for the UE.
A kind of user equipment switching device during base station configuration change, including：
Determining unit, for determining to need to perform cell splitting or merging；
Transmitting element, being carried for being sent a notification message to adjacent base station, in the notification message will divide or close
And home cell information and the information for the cell to be generated, by adjacent base station according to the notification message carry out UE cut
Change.
A kind of user equipment switching device during base station configuration change, including：
Receiving unit, before preparing for user equipment (UE) triggering switching, receives the base for performing cell splitting or merging
Stand the notification message sent, the information for the home cell that divide or merge is carried in the notification message and to be generated
Cell information；
Switch unit, for being switched over according to the notification message for the UE.
A kind of user equipment switching system during base station configuration change, including：
The base station of cell splitting or merging is performed, for determining to need to perform cell splitting or merging；Sent out to adjacent base station
Send the information for the home cell that carrying will divide or merge and the cell to be generated in notification message, the notification message
Information, by adjacent base station according to the notification message carry out UE switchings.
The base station switched over for user equipment (UE), before preparing for user equipment (UE) triggering switching, receives execution
The notification message that the base station of cell splitting or merging is sent；Switched over according to the notification message for the UE.
Method for user device switching, apparatus and system during a kind of embodiment of the present invention base station configuration change of offer, in base
When determination of standing needs to perform cell splitting or merge, base station sends a notification message to adjacent base station, is carried in the notification message
The information of the information for the home cell for dividing or merging and the cell to be generated, is notified by adjacent base station according to described
Message carries out UE switchings and prepared, because the RRC that cell after the cell to be generated or merging is contained in handover request signaling is rebuild
Information, so once switching unsuccessfully, the base station for occurring cell splitting or merging can successfully carry out RRC according to these information
Connection reconstruction, it is to avoid conversation loss, reduces influence of the base station configuration change to QoS of customer.
Brief description of the drawings
Fig. 1 is the topological diagram of vertical many sectors divisions in the prior art；
Fig. 2 a prepare successfully flow chart for switching in the prior art；
Fig. 2 b prepare failure procedures figure for switching in the prior art；
One of method for user device switching flow chart when Fig. 3 is base station configuration change provided in an embodiment of the present invention；
Fig. 4 be base station configuration change provided in an embodiment of the present invention when method for user device switching flow chart two；
Fig. 5 a are the cell topology signal before dividing in embodiment application scenarios provided in an embodiment of the present invention or after merging
Figure；
Fig. 5 b are the cell topology signal after dividing in embodiment application scenarios provided in an embodiment of the present invention or before merging
Figure；
Fig. 6 a be base station configuration change provided in an embodiment of the present invention when user equipment switching device structural representation it
One；
User equipment switching device knot when Fig. 6 b are a kind of preferably base station configuration change provided in an embodiment of the present invention
Structure schematic diagram；
Fig. 7 be base station configuration change provided in an embodiment of the present invention when user equipment switching device structural representation it
Two；
User equipment switching system structural representation when Fig. 8 is base station configuration change provided in an embodiment of the present invention.
Embodiment
Method for user device switching, apparatus and system during a kind of embodiment of the present invention base station configuration change of offer, in base
When determination of standing needs to perform cell splitting or merge, base station sends a notification message to adjacent base station, is carried in the notification message
The information of the information for the home cell for dividing or merging and the cell to be generated, is notified by adjacent base station according to described
Message carries out UE switchings and prepared, because the RRC that cell after the cell to be generated or merging is contained in handover request signaling is rebuild
Information, so once switching unsuccessfully, the base station for occurring cell splitting or merging can successfully carry out RRC according to these information
Connection reconstruction, it is to avoid conversation loss, reduces influence of the base station configuration change to QoS of customer.
For handoff failure caused by reducing cell splitting or merging, and improve RRC connection reconstructions after handoff failure
Success rate, base station is sent to adjacent base station around by inter-base station interface and notified before cell splitting or union operation is performed
Message is (for example, the notification message can be for " base station configuration updating prepares eNB Configuration Update
Prepare "), the cell that contains the information for the home cell that divide or merge and will generate in notification message
Information, the information of the cell, including but not limited to following information：
The physical layer identifications of cell（PCI）；
The descending carrier frequency of cell（EARFCN）；
The overall identification of cell（E-CGI）.
Adjacent base station is received after the notification message, is prepared for UE triggering switchings, and Target cell is the notification message middle finger
Show when being ready for the cell for dividing or merging, then according to newly-generated cell after division or merge after cell mark
(CellIdentity), physical layer identifications (PCI) and frequency (EARFCN) calculate the corresponding key of the cell（KeNB*）And
shortMAC-I（Short message authentication code used for data integrity of
Signalling messages, the verifying SMS code for signalling message data integrality）, and by the mark of cell
(CellIdentity) obtained K, is calculatedeNBAnd shortMAC-I numerical value is added to RRC reconstruction informations *
(ReestablishmentInfo) in the additional reconstruction information (additionalReestabInfoList) in, then by cutting
Change request message and be sent to target BS (i.e. the base station of cell splitting or merging).
The base station of progress cell splitting or merging receives adjacent base before the configuration operation of cell splitting or merging is completed
The handover request signaling that station is sent, and target is to enter the cell of line splitting or merging, then the base station is above and below the UE is set up
Text, preserves the RRC reconstruction informations that adjacent base station is sent.Base station can not distribute wireless traffic bearing resource for the UE, be then back to
Switching prepares failure response；Or, base station is the wireless traffic bearing resource of UE distribution requests, is then back to switching and prepares successfully
Response.
If the base station for carrying out cell splitting or merging returns to switching preparation failure response, adjacent base station receives failure response,
The switching of changing cells would not be triggered to.When UE former serving cell link quality degradation to a certain extent after, occur RLF
（Radio Link Fail, Radio Link Failure）, then selection division after newly-generated cell or merge after cell attempt RRC
Connection reconstruction, because there has been corresponding reconstruction information base station, can be such that RRC rebuilds successfully.If carrying out cell splitting or conjunction
And base station return switching prepare success response, adjacent base station receive response after to UE send switching command, UE attempt access target
Cell, because Target cell is differed with the cell for dividing or merging, UE, which can not be accessed, causes handoff failure, subsequent UE selections point
Cell after splitting rear newly-generated cell or merging attempts RRC connection reconstructions, can because there has been corresponding reconstruction information base station
So that RRC is rebuild successfully.
Specifically, as shown in figure 3, method for user device switching during base station configuration change provided in an embodiment of the present invention,
Including：
Step S301, base station determine to need to perform cell splitting or merging；
Step S302, base station send a notification message to adjacent base station, carry what is divided or merge in notification message
The information of the information of home cell and the cell to be generated, UE switchings are carried out by adjacent base station according to notification message.
Because base station sends a notification message when needing and performing cell splitting or merging to adjacent base station, so that by adjacent base station
UE switchings are carried out according to notification message to prepare, you can improve the success rate of RRC connection reconstructions after handoff failure, it is to avoid user falls
Words, reduce influence of the base station configuration change to QoS of customer.
Wherein, the information of cell, is specifically included：
The physical layer identifications of cell；
The descending carrier frequency of cell；
The overall identification of cell.
When there is UE to be switched in current area under adjacent base station, this method also includes：
Base station receives the handover request signaling of adjacent base station transmission before the configuration of cell splitting or merging is completed,
And indicate that the Target cell that UE switches is the cell for entering line splitting or merging in handover request signaling；
Context is set up in base station for UE, preserves the RRC reconstruction informations that adjacent base station is sent；
Switching is sent to the adjacent base station for sending handover request and prepares failure response, by the adjacent base station of transmission handover request
Cancel handover operation, or distribute accurate to the adjacent base station transmission switching for sending handover request after wireless traffic bearing resource for UE
Standby success response, success response is prepared to UE transmission switching commands from the adjacent base station according to switching.
The embodiment of the present invention correspondingly provides method for user device switching during a kind of base station configuration change, and this method is by holding
The base station of row switching is carried out, as shown in figure 4, this method includes：
Step S401, prepare for user equipment (UE) triggering switching before, receive the base station hair for performing cell splitting or merging
The information of home cell that divide or merge and the cell to be generated are carried in the notification message sent, notification message
Information；
Step S402, switched over for UE according to notification message.
Similarly, the information of cell, is specifically included：
The physical layer identifications of cell；
The descending carrier frequency of cell；
The overall identification of cell.
In step S402, switched over, specifically included for UE according to notification message：
Prepare for UE triggering switchings, and Target cell is the cell that divide or merge indicated in notification message
When, determine that the cell is corresponding according to mark, physical layer identifications and the frequency of the cell after newly-generated cell after division or merging
KeNBAnd shortMAC-I *；
By the mark of cell, KeNB* and shortMAC-I is added in the additional reconstruction information in RRC reconstruction informations, and lead to
Cross handover request message and be sent to target BS, context is set up for UE by target BS base station, preserve what adjacent base station was sent
RRC reconstruction informations；
Cancel handover operation after receiving the switching preparation failure response that target BS is sent, or it is UE to receive target BS
The switching sent after distribution wireless traffic bearing resource prepares success response, and is cut according to switching preparation success response to UE transmissions
Change order.
Method for user device switching during below by specific embodiment to base station configuration change is described in detail：
Embodiment one,
Because network load is higher, current base station is determined to carry out cell splitting by adjusting AAS, and cell A is divided
For two cells A1 and A2, to improve the total capacity of system.Cell topology is such as shown in Figure 5 a, after division for cell topology before division
Shown in Fig. 5 b.
Before cell splitting operation is carried out, base station sends a notification message to adjacent base station.Base station is in cell splitting process
In receive handover request, and target is the cell divided, then returns to switching and prepare failure response.
Specifically, because traffic load is heavier, current base station (being referred to as base station A) determines adjustment AAS patterns, prepares cell
A is split into two cell A1 and A2 to improve the capacity of network, wherein division after cell A1 ECGI, PCI and frequency configuration with
Cell A is identical, and base station is newly-generated cell A2 distribution or request OAM is its distribution ECGI, PCI and frequency；
Before AAS mode adjustments are performed, base station A sends a notification message to adjacent base station B, C, D, E and F around, wherein
Contain cell A ECGI and the information by the cell A2 of generation, such as ECGI, PCI and frequency.
Adjacent base station (in B, C, D, E, F any one) is received after the notification message of base station A transmissions, if UE of its service is needed
Switch, and target is cell A, then according to mark (CellIdentity), PCI and the frequency meter included in the ECGI of A2 cells
Calculate the corresponding K of the celleNB* and shortMAC-I, and by the mark (CellIdentity) of A2 cells, obtained K is calculatedeNB*
And shortMAC-I is added in the additional reconstruction information in the RRC reconstruction informations in handover request message, then pass through switching
Demand signalling is sent to target BS A.
Base station A receives handover request message, and context is set up for the UE, preserves the RRC reconstruction informations that adjacent base station is sent, but
Wireless traffic bearing resource is not distributed, is then back to switching and is prepared failure response.
Base station A performs the adjustment of AAS antenna modes, and cell A is split into cell A1 and A2.
Adjacent base station receives switching and prepares failure response, will not be triggered to cell A switching.
As UE is moved, the nothing of the coverage, then UE gradually leaving former serving cell and enter newly-generated cell A2
RLF occurs afterwards to a certain extent for wired link deterioration, and because UE has been moved to cell A2 scope, selection cell A2 attempts RRC
Connection reconstruction, because base station A has had the corresponding reconstruction informations of cell A2, can make the success of RRC connection reconstructions, UE is not sent out
Raw call drop.
Embodiment two,
Base station determines cell A to be split into two cells A1 and A2 by adjusting AAS progress cell splittings.Before division
Cell topology is as shown in Figure 5 b as shown in Figure 5 a, after division for cell topology.
Before cell splitting operation is carried out, base station sends a notification message to adjacent base station.Base station is in cell splitting process
In receive handover request, and target is the cell divided, then carries out normal switching and prepare, return to switching and prepare successfully to ring
Should.
Specifically, because traffic load is heavier, current base station (being referred to as base station A) determines adjustment AAS patterns, prepares cell
A is split into two cell A1 and A2 to improve the capacity of network, wherein division after cell A1 ECGI, PCI and frequency configuration with
Cell A is identical, and base station is newly-generated cell A2 distribution or request OAM is its distribution ECGI, PCI and frequency；
Before AAS mode adjustments are performed, base station A sends a notification message to adjacent base station B, C, D, E and F around, wherein
Contain cell A ECGI and the information by the cell A2 of generation, such as ECGI, PCI and frequency.
Adjacent base station (in B, C, D, E, F any one) is received after the notification message of base station A transmissions, if UE of its service is needed
Switch, and target is cell A, then according to mark (CellIdentity), PCI and the frequency meter included in the ECGI of A2 cells
Calculate the corresponding K of the celleNB* and shortMAC-I, and by cell A2 mark (CellIdentity), obtained K is calculatedeNB*
And shortMAC-I is added in the additional reconstruction information in the RRC reconstruction informations in handover request message, then pass through switching
Demand signalling is sent to target BS A.
Base station A receives handover request message, and context is set up for the UE, preserves the RRC reconstruction informations that adjacent base station is sent, and
The wireless traffic bearing resource of distribution request, is then back to switching and prepares success response.
Base station A performs the adjustment of AAS antenna modes, and cell A is split into cell A1 and A2.
Adjacent base station receives switching and prepares success response, sends switching command to UE, Target cell is A, and UE performs switching, tastes
Try into cell A, but now cell A has been split into cell A1 and A2, UE position are coverages in cell A2, UE without
Method access is so as to cause handoff failure.
Because UE has been moved to cell A2 scope, UE selection cells A2 attempts RRC connection reconstructions after failure, due to base station A
There are the corresponding reconstruction informations of cell A2, the success of RRC connection reconstructions can be made, call drop does not occur for UE.
Embodiment three,
Because network load is than relatively low, system need not too high capacity, while the mobility expense in order to reduce system,
Current base station determines two cells A1 and A2 to be merged into cell A by adjusting AAS progress cell combinings.Cell before merging
Cell topology is as shown in Figure 5 a as shown in Figure 5 b, after merging for topology.
Because traffic load is lighter, system need not too high capacity, while the mobility expense in order to reduce system, when
Preceding base station (being referred to as base station A) determines adjustment AAS patterns, and two cells A1 and A2 are merged into cell A, wherein cell A after merging
ECGI, PCI and frequency configuration it is identical with cell A1, cell A2 will be wholly absent after merging；
Before AAS mode adjustments are performed, base station A sends a notification message to adjacent base station B, C, D, E and F around, wherein
Contain the cell A1 information also existed after merging, such as ECGI, PCI and frequency, and the cell A2 disappeared after merging
ECGI。
Adjacent base station (in B, C, D, E, F any one) is received after the notification message of base station A transmissions, if UE of its service is needed
Switch, and target is the cell A2 that will be disappeared, then according to the mark (CellIdentity) included in cell A1 ECGI,
PCI and frequency calculate the corresponding K of the celleNB* and shortMAC-I, and by the mark (CellIdentity) of A1 cells, calculate
Obtained KeNB* and shortMAC-I is added in the additional reconstruction information in the RRC reconstruction informations in handover request message, so
Target BS A is sent to by handover request signaling afterwards.
Base station A receives handover request message, and context is set up for the UE, preserves the RRC reconstruction informations that adjacent base station is sent, but
Wireless traffic bearing resource is not distributed, is then back to switching and is prepared failure response.
Base station A performs the adjustment of AAS antenna modes, and cell A1 and A2 merge into a cell A.
Adjacent base station receives switching and prepares failure response, will not be triggered to cell A2 switching.
As UE is moved, gradually leave former serving cell and enter merge after cell A coverage, then UE's is wireless
RLF occurs afterwards to a certain extent for link quality degradation, and because UE has been moved to cell A scope, selection cell A attempts RRC connections
Rebuild, because base station A has had cell A (A1 before merging) corresponding reconstruction information, the success of RRC connection reconstructions can be made,
Call drop does not occur for UE.
Example IV,
Base station determines two cells A1 and A2 to be merged into cell A by adjusting AAS progress cell combinings.Before merging
Cell topology is as shown in Figure 5 a as shown in Figure 5 b, after merging for cell topology.Before cell A union operations are carried out, base station is to phase
Adjacent base station sends a notification message.
Because traffic load is lighter, system need not too high capacity, while the mobility expense in order to reduce system, when
Preceding base station (being referred to as base station A) determines adjustment AAS patterns, and two cells A1 and A2 are merged into cell A, wherein cell A after merging
ECGI, PCI and frequency configuration it is identical with cell A1, cell A2 will be wholly absent after merging；
Before AAS mode adjustments are performed, base station A sends a notification message to adjacent base station B, C, D, E and F around, wherein
Contain the cell A1 information also existed after merging, such as ECGI, PCI and frequency, and the cell A2 disappeared after merging
ECGI。
Adjacent base station (in B, C, D, E, F any one) is received after the notification message of base station A transmissions, if UE of its service is needed
Switch, and target is the cell A2 that will be disappeared, then according to the mark (CellIdentity) included in cell A1 ECGI,
PCI and frequency calculate the corresponding K of the celleNB* and shortMAC-I, and by the mark (CellIdentity) of A1 cells, calculate
Obtained KeNB* and shortMAC-I is added in the additional reconstruction information in the RRC reconstruction informations in handover request message, so
Target BS A is sent to by handover request signaling afterwards.
Base station A receives handover request message, and context is set up for the UE, preserves the RRC reconstruction informations that adjacent base station is sent, point
Wireless traffic bearing resource with request, is then back to switching and prepares success response.
Base station A performs the adjustment of AAS antenna modes, and cell A1 and A2 merge into a cell A.
Adjacent base station receives switching and prepares success response, sends switching command to UE, Target cell is A2, and UE performs switching,
Access cell A2 is attempted, but cell A2 has disappeared, and UE can not access to cause handoff failure.
Because UE has been moved to cell A scope, selection cell A attempts RRC connection reconstructions, because base station A has had small
Area A (A1 before merging) corresponding reconstruction information, can make the success of RRC connection reconstructions, call drop does not occur for UE.
The embodiment of the present invention correspondingly provides user equipment switching device during a kind of base station configuration change, and the device is specific
To perform the base station of cell splitting or merging, as shown in Figure 6 a, the device includes：
Determining unit 601, for determining to need to perform cell splitting or merging；
Transmitting element 602, being carried for being sent a notification message to adjacent base station, in notification message will divide or merge
Home cell information and the information for the cell to be generated, by adjacent base station according to notification message carry out UE switchings.
Wherein, the information of cell, is specifically included：
The physical layer identifications of cell；
The descending carrier frequency of cell；
The overall identification of cell.
Further, as shown in Figure 6 b, also include：
Switch preparatory unit 603, for before the configuration of cell splitting or merging is completed, receiving adjacent base station transmission
Handover request signaling, and indicate that the Target cells of UE switchings is entering line splitting or merging small in handover request signaling
Area；
Context is set up for UE, the wireless spread-spectrum technology RRC reconstruction informations that adjacent base station is sent are preserved；
Switching is sent to the adjacent base station for sending handover request and prepares failure response, by the adjacent base station of transmission handover request
Cancel handover operation, or distribute accurate to the adjacent base station transmission switching for sending handover request after wireless traffic bearing resource for UE
Standby success response, success response is prepared to UE transmission switching commands from the adjacent base station according to switching.
The embodiment of the present invention correspondingly provides user equipment switching device during a kind of base station configuration change, and the device is specific
It is the base station switched over for UE, as shown in fig. 7, the device includes：
Receiving unit 701, before preparing for user equipment (UE) triggering switching, receives and performs cell splitting or merging
The notification message that base station is sent, carries the information for the home cell that divide or merge in notification message and to be generated
The information of cell；
Switch unit 702, for being switched over according to notification message for UE.
Wherein, the information of cell, is specifically included：
The physical layer identifications of cell；
The descending carrier frequency of cell；
The overall identification of cell.
Switch unit 702 specifically for：
Prepare for UE triggering switchings, and Target cell is the cell that divide or merge indicated in notification message
When, determine that the cell is corresponding according to mark, physical layer identifications and the frequency of the cell after newly-generated cell after division or merging
Key and shortMAC-I；
The mark of cell, key and shortMAC-I are added to additional heavy in wireless spread-spectrum technology RRC reconstruction informations
Build in information, and target BS is sent to by handover request message, set up context for UE by target BS base station, preserve phase
The RRC reconstruction informations that adjacent base station is sent；
Cancel handover operation after receiving the switching preparation failure response that target BS is sent, or it is UE to receive target BS
The switching sent after distribution wireless traffic bearing resource prepares success response, and is cut according to switching preparation success response to UE transmissions
Change order.
Wherein, it is same field to perform the base station of cell splitting or merging and trigger the base station that switching prepares for user equipment (UE)
Two base stations under scape, still, a base station can be provided simultaneously with the base station of execution cell splitting or merging and be user equipment
The function for the base station that UE triggering switchings prepare.
The embodiment of the present invention correspondingly provides user equipment switching system during a kind of base station configuration change, as shown in figure 8,
Including：
The base station 801 of cell splitting or merging is performed, for determining to need to perform cell splitting or merging；To adjacent base station
Send a notification message, the information of home cell that divide or merge and the cell to be generated are carried in notification message
Information, UE switchings are carried out by adjacent base station according to notification message.
The base station 802 switched over for user equipment (UE), before preparing for user equipment (UE) triggering switching, receives and holds
The notification message that the base station of row cell splitting or merging is sent；Switched over according to notification message for UE.
Method for user device switching, apparatus and system during a kind of embodiment of the present invention base station configuration change of offer, in base
When determination of standing needs to perform cell splitting or merge, base station sends a notification message to adjacent base station, is carried in the notification message
The information of the information for the home cell for dividing or merging and the cell to be generated, is notified by adjacent base station according to described
Message carries out UE switchings and prepared, because the RRC that cell after the cell to be generated or merging is contained in handover request signaling is rebuild
Information, so once switching unsuccessfully, the base station for occurring cell splitting or merging can successfully carry out RRC according to these information
Connection reconstruction, it is to avoid conversation loss, reduces influence of the base station configuration change to QoS of customer.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can be used in one or more computers for wherein including computer usable program code
Usable storage medium（Including but not limited to magnetic disk storage, CD-ROM, optical memory etc.）The computer program production of upper implementation
The form of product.
The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow of computer program product
Figure and/or block diagram are described.It should be understood that every one stream in flow chart and/or block diagram can be realized by computer program instructions
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and modification of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (13)
1. method for user device switching during a kind of base station configuration change, it is characterised in that including：
Base station determines to need to perform cell splitting or merging；
Base station sends a notification message to adjacent base station, the home cell that carrying will divide or merge in the notification message
The information of information and the cell to be generated, UE switchings are carried out by adjacent base station according to the notification message.
2. the method as described in claim 1, it is characterised in that the information of the cell, is specifically included：
The physical layer identifications of cell；
The descending carrier frequency of cell；
The overall identification of cell.
3. the method as described in claim 1, it is characterised in that also include：
Base station receives the handover request signaling of adjacent base station transmission before the configuration of cell splitting or merging is completed, and cuts
Change in demand signalling and indicate that the Target cell that UE switches is the cell for entering line splitting or merging；
Context is set up in base station for the UE, preserves the radio resource control RRC reconstruction information that adjacent base station is sent；
Switching is sent to the adjacent base station for sending handover request and prepares failure response, by the adjacent base station of the transmission handover request
Cancel handover operation, or cut to be sent after UE distribution wireless traffic bearing resources to the adjacent base station for sending handover request
Preparation success response is changed, success response is prepared to UE transmission switching commands according to the switching from the adjacent base station.
4. method for user device switching during a kind of base station configuration change, it is characterised in that including：
Before preparing for user equipment (UE) triggering switching, receive and perform the notification message that the base station of cell splitting or merging is sent,
The information and the information for the cell to be generated for the home cell that divide or merge are carried in the notification message；
Switched over according to the notification message for the UE.
5. method as claimed in claim 4, it is characterised in that the information of the cell, is specifically included：
The physical layer identifications of cell；
The descending carrier frequency of cell；
The overall identification of cell.
6. method as claimed in claim 4, it is characterised in that switched over according to the notification message for the UE, specifically
Including：
Prepare for UE triggering switchings, and Target cell is the cell that divide or merge indicated in the notification message
When, determine that the cell is corresponding according to mark, physical layer identifications and the frequency of the cell after newly-generated cell after division or merging
Key and the verifying SMS code for signalling message data integrality；
The mark of the cell, key and the verifying SMS code for signalling message data integrality are added to Radio Resource
Control in the additional reconstruction information in RRC reconstruction informations, and target BS is sent to by handover request message, by the target
Base station sets up context for the UE, preserves the RRC reconstruction informations；
Cancel handover operation after receiving the switching preparation failure response that the target BS is sent, or receive the target BS
The switching sent after wireless traffic bearing resource is distributed for the UE and prepares success response, and prepares successfully to ring according to the switching
Switching command should be sent to UE.
7. user equipment switching device during a kind of base station configuration change, it is characterised in that including：
Determining unit, for determining to need to perform cell splitting or merging；
Transmitting element, carries what is divided or merge for being sent a notification message to adjacent base station, in the notification message
The information of the information of home cell and the cell to be generated, UE switchings are carried out by adjacent base station according to the notification message.
8. device as claimed in claim 7, it is characterised in that the information of the cell, is specifically included：
The physical layer identifications of cell；
The descending carrier frequency of cell；
The overall identification of cell.
9. device as claimed in claim 7, it is characterised in that also include：
Switch preparatory unit, for before the configuration of cell splitting or merging is completed, receiving the switching of adjacent base station transmission
The Target cell that UE switchings are indicated in demand signalling, and handover request signaling is the cell for entering line splitting or merging；
Context is set up for the UE, the radio resource control RRC reconstruction information that adjacent base station is sent is preserved；
Switching is sent to the adjacent base station for sending handover request and prepares failure response, by the adjacent base station of the transmission handover request
Cancel handover operation, or cut to be sent after UE distribution wireless traffic bearing resources to the adjacent base station for sending handover request
Preparation success response is changed, success response is prepared to UE transmission switching commands according to the switching from the adjacent base station.
10. user equipment switching device during a kind of base station configuration change, it is characterised in that including：
Receiving unit, before preparing for user equipment (UE) triggering switching, receives the base station hair for performing cell splitting or merging
The information of home cell that divide or merge is carried in the notification message sent, the notification message and to be generated it is small
The information in area；
Switch unit, for being switched over according to the notification message for the UE.
11. device as claimed in claim 10, it is characterised in that the information of the cell, is specifically included：
The physical layer identifications of cell；
The descending carrier frequency of cell；
The overall identification of cell.
12. device as claimed in claim 10, it is characterised in that the switch unit specifically for：
Prepare for UE triggering switchings, and Target cell is the cell that divide or merge indicated in the notification message
When, determine that the cell is corresponding according to mark, physical layer identifications and the frequency of the cell after newly-generated cell after division or merging
Key and the verifying SMS code for signalling message data integrality；
The mark of the cell, key and the verifying SMS code for signalling message data integrality are added to Radio Resource
Control in the additional reconstruction information in RRC reconstruction informations, and target BS is sent to by handover request message, by the target
Base station sets up context for the UE, preserves the RRC reconstruction informations；
Cancel handover operation after receiving the switching preparation failure response that the target BS is sent, or receive the target BS
The switching sent after wireless traffic bearing resource is distributed for the UE and prepares success response, and prepares successfully to ring according to the switching
Switching command should be sent to the UE.
13. user equipment switching system during a kind of base station configuration change, it is characterised in that including：
The base station of cell splitting or merging is performed, for determining to need to perform cell splitting or merging；Send logical to adjacent base station
Know the information and the letter for the cell to be generated of the home cell that carrying will divide or merge in message, the notification message
Breath, UE switchings are carried out by adjacent base station according to the notification message；
The base station switched over for user equipment (UE), before preparing for user equipment (UE) triggering switching, receives execution cell
The notification message that division or the base station merged are sent；Switched over according to the notification message for the UE.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310111468.3A CN104105145B (en) | 2013-04-01 | 2013-04-01 | Method for user device switching, apparatus and system during a kind of base station configuration change |
| PCT/CN2014/074386 WO2014161450A1 (en) | 2013-04-01 | 2014-03-31 | Method, device, and system for handing over user equipment during change of configuration of base station |
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| CN201310111468.3A CN104105145B (en) | 2013-04-01 | 2013-04-01 | Method for user device switching, apparatus and system during a kind of base station configuration change |
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| CN104105145B true CN104105145B (en) | 2017-07-14 |
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| CN106358249A (en) * | 2015-07-14 | 2017-01-25 | 中兴通讯股份有限公司 | Cell switching method and system |
| CN107113678A (en) | 2015-07-31 | 2017-08-29 | 华为技术有限公司 | A kind of dynamic merges minilocus approach, device, the network equipment and system |
| CN108496408B (en) * | 2016-01-26 | 2023-10-20 | 株式会社Ntt都科摩 | Base station and transmission method |
| CN107027118A (en) * | 2016-02-02 | 2017-08-08 | 中国移动通信集团公司 | Inter-cell switch method and device, base station |
| CN108156609B (en) * | 2016-12-02 | 2022-08-19 | 中兴通讯股份有限公司 | Cell merging and splitting method, device and base station |
| CN108235341A (en) * | 2016-12-21 | 2018-06-29 | 中兴通讯股份有限公司 | The update method and device of a kind of neighboring BS relationship |
| CN110831255B (en) * | 2018-08-09 | 2023-05-02 | 大唐移动通信设备有限公司 | Method for reestablishing RRC connection, base station, mobile terminal and storage medium |
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