CN104105145A - User device switching method, device and system during base station configuration change - Google Patents
User device switching method, device and system during base station configuration change Download PDFInfo
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- CN104105145A CN104105145A CN201310111468.3A CN201310111468A CN104105145A CN 104105145 A CN104105145 A CN 104105145A CN 201310111468 A CN201310111468 A CN 201310111468A CN 104105145 A CN104105145 A CN 104105145A
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
Abstract
The invention discloses a user device switching method, device and system during base station configuration change, and relates to the communication technology. When a base station determines that cell split or merge needs to be executed, a notification message is sent to an adjacent base station by the base station, the notification message carries the information of local cells to be split or merged and the information of cells to be generated, the adjacent base station prepares UE switching preparation according to the notification message, the switching request signalling includes the RRC reestablishment information of the cells to be generated or the merged cells, so the base station in which the cell split or merge condition occurs can reestablish RRC connection successfully according to the information, so the user call dropping can be avoided, and the influence of the base station configuration change and the user service quality can be reduced.
Description
Technical field
The present invention relates to the communication technology, method for user device switching, Apparatus and system while relating in particular to a kind of base station configuration change.
Background technology
In mobile communication system, along with the introducing of active antenna (Active Antenna System, AAS) technology, the load condition that network can be based on actual, improve or reduce power system capacity by dynamic cell splitting or merging, reach the object becoming with need.But dynamic cell splitting or merging mean the change of network topology, this can increase handoff failure probability, reduces network mobility performance.
Concrete, AAS is designed to the multiple different lobe width that comprises limited quantity conventionally.AAS can control angle of declination and lobe width makes it to have a better resolution, and wave beam and angle of declination can be adjusted according to user's business model in some specific scene, thereby whole network performance is maximized.The concept of angle of declination and beamwidth control can be extended to as in the technology such as cell splitting.Thereby make community divide in level or vertical direction the effect that produces cell splitting by adjustment modes in active antenna system.
The main feature of this function be at vertical plane or horizontal plane by a cell splitting Cheng Liangge community, two co-frequency cells can have different inclination angles, beam shape and covering radius, but have identical frequency, thereby have improved the utilance of resource.It is limited and have the region of high power capacity demand that this function is mainly applicable to some frequencies, as the covering scene such as Tall Office Building, street.Due to multiplexing original running time-frequency resource, although there is the loss of some interference and switching, but still can effectively promote the capacity of community, and if the transmitting power of division Hou Liangge community all, with in the identical situation of transmitting power of the front community of division, also has a certain upgrade for the coverage effect of outer community.Topological structure when Fig. 1 has provided active antenna and vertically splits into two communities.
In E-UTRAN system standard specification, define switching set-up procedure at X2 interface, as shown in Figure 2 a and 2 b, in the time that serving BS switches preparation for certain UE triggers X2, serving BS will send by X2 interface handover request (HANDOVER REQUEST) message to base station, place, Target cell, target BS is received after handover request, for UE sets up context, according to the QoS(Quality of Service of the UE RAB of request, quality of service) value Resources allocation, and configuration information relevant UE is saved in UE context.If resource is allocated successfully, return to Handover Request Acknowledge (HANDOVER REQUEST ACKNOWLEDGE) message; If resource is distributed unsuccessfully, return to switch and prepare unsuccessfully (HANDOVER PREPARATION FAILURE) message.
In E-UTRAN system standard specification, in the time switching preparation, in the handover request signaling that source eNB sends to target eNB, carry the contextual information of UE, wherein comprise the information of rebuilding for UE RRC, when specific implementation, can realize in the following way:
Handover preparation information (HandoverPreparationInformation), the E-UTRA rrc message that this message is used in the time switching preparation for transmitting target BS, comprises UE ability information.
From source base station/source Access Network to target BS:
AS-Context(AS context), this information is for transmitting the required local E-UTRAN context of target BS.
Corresponding shortMAC-I and the K in community that comprises one group of target BS control
eNB*, they are UE needed information while successfully rebuilding in these communities.
Key-eNodeB-Star
Parameter?K
eNB*:?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, Radio Resource control) rebuild information (ReestablishmentInfo) in, except comprising the information of Target cell, can also comprise the information (additionalReestabInfoList) of other community that belongs to target BS, the purposes of this information is, once UE handoff failure, and select other community of the non-Target cell of target BS to attempt RRC connection reconstruction, can ensure the success of RRC connection reconstruction, can prevent that like this UE is because of handoff failure call drop, impact on customer service is reduced to minimum.
Visible, when being used AAS technology, base station carries out after cell splitting or merging, the topology change of network, in this region there is variation in the neighbouring relations of minizone, and this must have influence on the switching of UE, reduces the performance of handoffs of network.For example, before cell splitting, the switching to Target cell has been triggered to a UE in adjacent base station, UE is in the time attempting access target, and Target cell has divided, and occurs that Xin community covers after the division of Shi Yougai Target cell, UE position, the information of former Target cell due to what comprise in switching command, UE can not identify new community, and result cannot be linked into new community, causes handoff failure.After handoff failure, because the signal of new community is the strongest, UE selects this new community to attempt RRC connection reconstruction, because base station does not have the reconstruction information of Gai Xin community, the failure of RRC connection reconstruction, UE enters the IDLE(free time) state, cause call drop, user's service is caused to poor impact.
Summary of the invention
Method for user device switching, Apparatus and system when the embodiment of the present invention provides a kind of base station configuration change, to reduce the impact of base station configuration change on QoS of customer.
Method for user device switching when base station configuration change, comprising:
Base station is determined need to carry out cell splitting or merging;
Base station sends a notification message to adjacent base station, carries the information of the community that the information of the home cell that divides or merge will occur and will generate in described notification message, carries out UE switching by adjacent base station according to described notification message.
Method for user device switching when base station configuration change, comprising:
Switch before preparation for user equipment (UE) triggering, receive the notification message of the base station transmission of carrying out cell splitting or merging, in described notification message, carry the information of the community that the information of the home cell that divides or merge will occur and will generate;
Be that described UE switches according to described notification message.
Subscriber equipment switching device shifter when base station configuration change, comprising:
Determining unit, need to carry out cell splitting or merging for determining;
Transmitting element, for sending a notification message to adjacent base station, carries the information of the community that the information of the home cell that divides or merge will occur and will generate in described notification message, carry out UE switching by adjacent base station according to described notification message.
Subscriber equipment switching device shifter when base station configuration change, comprising:
Receiving element, is used to user equipment (UE) triggering to switch before preparation, receives the notification message of the base station transmission of carrying out cell splitting or merging, carries the information of the community that the information of the home cell that divides or merge will occur and will generate in described notification message;
Switch unit, for being that described UE switches according to described notification message.
Subscriber equipment switched system when base station configuration change, comprising:
Carry out the base station of cell splitting or merging, need to carry out cell splitting or merging for determining; Send a notification message to adjacent base station, in described notification message, carry the information of the community that the information of the home cell that divides or merge will occur and will generate, carry out UE switching by adjacent base station according to described notification message.
For the base station that user equipment (UE) switches, be used to user equipment (UE) to trigger and switch before preparation, receive the notification message of the base station transmission of carrying out cell splitting or merging; Be that described UE switches according to described notification message.
The method for user device switching when embodiment of the present invention provides a kind of base station configuration change, Apparatus and system, determine in base station when need to carrying out cell splitting or merging, base station sends a notification message to adjacent base station, the information of the community of carrying the information of the home cell that division will occur or merge in described notification message and will generate, carry out UE by adjacent base station according to described notification message and switch preparation, owing to having comprised the community that will generate or the RRC reconstruction information that merges rear community in handover request signaling, once so switch unsuccessfully, RRC connection reconstruction can successfully be carried out according to these information in the base station that cell splitting or merging occur, avoid conversation loss, reduce the impact of base station configuration change on QoS of customer.
Brief description of the drawings
Fig. 1 is the topological diagram of vertical many sectors division in prior art;
Fig. 2 a switches in prior art to prepare successful flow chart;
Fig. 2 b switches in prior art to prepare failure procedures figure;
One of method for user device switching flow chart when Fig. 3 provides for the embodiment of the present invention base station configuration change;
Two of method for user device switching flow chart when Fig. 4 provides for the embodiment of the present invention base station configuration change;
Cell topology schematic diagram in the embodiment application scenarios that Fig. 5 a provides for the embodiment of the present invention before division or after merging;
Cell topology schematic diagram in the embodiment application scenarios that Fig. 5 b provides for the embodiment of the present invention after division or before merging;
One of subscriber equipment switching device shifter structural representation when Fig. 6 a provides for the embodiment of the present invention base station configuration change;
Subscriber equipment switching device shifter structural representation when Fig. 6 b provides for the embodiment of the present invention a kind of preferably base station configuration change;
Two of subscriber equipment switching device shifter structural representation when Fig. 7 provides for the embodiment of the present invention base station configuration change;
Subscriber equipment switched system structural representation when Fig. 8 provides for the embodiment of the present invention base station configuration change.
Embodiment
The method for user device switching when embodiment of the present invention provides a kind of base station configuration change, Apparatus and system, determine in base station when need to carrying out cell splitting or merging, base station sends a notification message to adjacent base station, the information of the community of carrying the information of the home cell that division will occur or merge in described notification message and will generate, carry out UE by adjacent base station according to described notification message and switch preparation, owing to having comprised the community that will generate or the RRC reconstruction information that merges rear community in handover request signaling, once so switch unsuccessfully, RRC connection reconstruction can successfully be carried out according to these information in the base station that cell splitting or merging occur, avoid conversation loss, reduce the impact of base station configuration change on QoS of customer.
The handoff failure causing in order to reduce cell splitting or merging, and the success rate of RRC connection reconstruction after raising handoff failure, base station is before carrying out cell splitting or union operation, by inter-base station interface towards periphery adjacent base station (for example send a notification message, this notification message can be " base station configuration updating is prepared eNB Configuration Update Prepare "), the information of the community that has comprised the information of the home cell that division will occur or merge in notification message and will generate, the information of described community, includes but not limited to following information:
The physical layer identifications (PCI) of community;
The descending carrier frequency (EARFCN) of community;
The overall identification (E-CGI) of community.
Receive after this notification message adjacent base station, triggering and switching preparation for UE, and when Target cell is the community of just preparing division or merging of indicating in this notification message, calculate key (K corresponding to this community according to mark (CellIdentity), physical layer identifications (PCI) and the frequency (EARFCN) of newly-generated community after division or merging Hou community
eNBand shortMAC-I(Short message authentication code used for data integrity of signalling messages *), for the verifying SMS code of signalling message data integrality), the mark (CellIdentity) of Bing Jiang community, the K calculating
eNB* and shortMAC-I numerical value add in the additional reconstruction information (additionalReestabInfoList) in RRC reconstruction information (ReestablishmentInfo), then send to target BS (being the base station of cell splitting or merging) by handover request message.
Carried out the base station of cell splitting or merging before completing the configuration operation of cell splitting or merging, receive the handover request signaling that adjacent base station is sent, and target is the community that is dividing or merging, context is set up for this UE in this base station, preserves the RRC reconstruction information of sending adjacent base station.Base station can, not for this UE distributes wireless traffic bearing resource, then be returned to switch and prepare failure response; Or base station is the wireless traffic bearing resource that UE distributes request, then returns to switch and prepare success response.
Return to switching preparation failure response if carry out the base station of cell splitting or merging, failure response is received in adjacent base station, just can not be triggered to the switching of changing cells.When UE is after the link-quality of former Serving cell deteriorates into a certain degree, there is RLF(Radio Link Fail, Radio Link Failure), select subsequently the rear newly-generated community of division or merge Hou community to attempt RRC connection reconstruction, because there has been corresponding reconstruction information base station, can make RRC rebuild successfully.Return to switching preparation success response if carry out the base station of cell splitting or merging, adjacent base station sends switching command to UE after receiving response, UE attempts access Target cell, because Target cell is not identical with the community of division or merging, UE cannot access and cause handoff failure, UE selects the rear newly-generated community of division or merges Hou community to attempt RRC connection reconstruction subsequently, because there has been corresponding reconstruction information base station, can make RRC rebuild successfully.
Concrete, as shown in Figure 3, the method for user device switching when configuration change of the embodiment of the present invention provides base station, comprising:
Step S301, base station are determined need to carry out cell splitting or merging;
Step S302, base station send a notification message to adjacent base station, carry the information of the community that the information of the home cell that divides or merge will occur and will generate in notification message, carry out UE switching by adjacent base station according to notification message.
Because base station sends a notification message to adjacent base station in the time that needs are carried out cell splitting or merged, thereby carry out UE by adjacent base station according to notification message and switch preparation, can improve the success rate of RRC connection reconstruction after handoff failure, avoid conversation loss, reduced the impact of base station configuration change on QoS of customer.
Wherein, the information of community, specifically comprises:
The physical layer identifications of community;
The descending carrier frequency of community;
The overall identification of community.
In the time having UE will be switched in current area under adjacent base station, the method also comprises:
Base station, before completing the configuration of cell splitting or merging, receives the handover request signaling that adjacent base station sends, and the Target cell of indicating UE to switch in handover request signaling is the community that is dividing or merging;
Base station is that UE sets up context, preserves the RRC reconstruction information that adjacent base station is sent;
Send to switch to the adjacent base station that sends handover request and prepare failure response, cancel handover operation by the adjacent base station that sends handover request, or prepare success response for sending to switch to the adjacent base station that sends handover request after UE distribution wireless traffic bearing resource, prepare success response by this adjacent base station according to switching and send switching command to UE.
The embodiment of the present invention is corresponding method for user device switching when a kind of base station configuration change is provided also, and the method is undertaken by the base station of carrying out switching, and as shown in Figure 4, the method comprises:
Step S401, for before user equipment (UE) triggers and switches and prepare, receive and carry out the notification message that the base station of cell splitting or merging sends, in notification message, carry the information of the home cell that division will occur or merge and the information of the community that will generate;
Step S402, be that UE switches according to notification message.
Same, the information of community, specifically comprises:
The physical layer identifications of community;
The descending carrier frequency of community;
The overall identification of community.
In step S402, be that UE switches according to notification message, specifically comprise:
Be that UE triggers to switch and prepares, and Target cell is while being the community that division will occur or merge of indicating in notification message, according to newly-generated community after division or merge mark, physical layer identifications and the frequency of Hou community and determine the K that this community is corresponding
eNBand shortMAC-I *;
By the mark of community, K
eNB* and shortMAC-I add in the additional reconstruction information in RRC reconstruction information, and send to target BS by handover request message, be that UE sets up context by target BS base station, preserve the RRC reconstruction information that adjacent base station is sent;
The switching that receiving target base station sends prepares after failure response to cancel handover operation, or receiving target base station is that UE distributes the switching sending after wireless traffic bearing resource to prepare success response, and prepares success response and send switching command to UE according to switching.
Method for user device switching below by specific embodiment during to base station configuration change is elaborated:
Embodiment mono-,
Because network load is higher, current base station determines to carry out cell splitting by adjusting AAS, community A is split into Liang Ge community A1 and A2, to improve the total capacity of system.Before division, as shown in Figure 5 a, after division, cell topology as shown in Figure 5 b for cell topology.
Before carrying out cell splitting operation, base station sends a notification message to adjacent base station.Handover request is received in base station in cell splitting process, and target is the community dividing, and returns to switch and prepares failure response.
Concrete, because traffic load is heavier, current base station (being called base station A) determines to adjust AAS pattern, prepare community A to be split into Liang Ge community A1 and the A2 capacity with raising network, wherein after division, ECGI, the PCI of community A1 are identical with community A with frequency configuration, and base station is that newly-generated community A2 distributes or request OAM distributes ECGI, PCI and frequency for it;
Before carrying out AAS mode adjustment, base station A towards periphery adjacent base station B, C, D, E and F sends a notification message, and has wherein comprised the ECGI of community A and by the information of the community A2 generating, as ECGI, PCI and frequency.
Receive after the notification message of base station A transmission adjacent base station (any one in B, C, D, E, F), if the UE of its service needs to switch, and target is community A, calculate K corresponding to this community according to the mark comprising in the ECGI of A2 community (CellIdentity), PCI and frequency
eNB* and shortMAC-I, the mark (CellIdentity) of Bing Jiang A2 community, the K calculating
eNB* and shortMAC-I add in the additional reconstruction information in the RRC reconstruction information in handover request message, then send to target BS A by handover request signaling.
Base station A receives handover request message, for this UE sets up context, preserves the RRC reconstruction information of sending adjacent base station, but does not distribute wireless traffic bearing resource, then returns to switch and prepares failure response.
Base station A carries out the adjustment of AAS antenna mode, and community A is split into community A1 and A2.
Adjacent base station is received to switch and is prepared failure response, can not be triggered to the switching of community A.
Along with UE moves, leave gradually former Serving cell and enter into the coverage of newly-generated community A2, the radio link quality of UE deteriorates into RLF to a certain degree occurs afterwards, because UE has moved on to the scope of community A2, select community A2 to attempt RRC connection reconstruction, due to reconstruction information corresponding to You Liao community A2 of base station A, can make the success of RRC connection reconstruction, there is not call drop in UE.
Embodiment bis-,
Base station determines to carry out cell splitting by adjusting AAS, and community A is split into Liang Ge community A1 and A2.Before division, as shown in Figure 5 a, after division, cell topology as shown in Figure 5 b for cell topology.
Before carrying out cell splitting operation, base station sends a notification message to adjacent base station.Handover request is received in base station in cell splitting process, and target is the community dividing, and carries out normal switching and prepares, and returns to switch and prepares success response.
Concrete, because traffic load is heavier, current base station (being called base station A) determines to adjust AAS pattern, prepare community A to be split into Liang Ge community A1 and the A2 capacity with raising network, the wherein ECGI of community A1 after division, PCI is identical with community A with frequency configuration, and base station is that newly-generated community A2 distributes or request OAM distributes ECGI, PCI and frequency for it;
Before carrying out AAS mode adjustment, base station A towards periphery adjacent base station B, C, D, E and F sends a notification message, and has wherein comprised the ECGI of community A and by the information of the community A2 generating, as ECGI, PCI and frequency.
Receive after the notification message of base station A transmission adjacent base station (any one in B, C, D, E, F), if the UE of its service needs to switch, and target is community A, calculate K corresponding to this community according to the mark comprising in the ECGI of A2 community (CellIdentity), PCI and frequency
eNB* and shortMAC-I, the mark (CellIdentity) of Bing Jiang community A2, the K calculating
eNB* and shortMAC-I add in the additional reconstruction information in the RRC reconstruction information in handover request message, then send to target BS A by handover request signaling.
Base station A receives handover request message, for this UE sets up context, preserves the RRC reconstruction information of sending adjacent base station, and distributes the wireless traffic bearing resource of request, then returns to switch and prepares success response.
Base station A carries out the adjustment of AAS antenna mode, and community A is split into community A1 and A2.
Switching preparation success response is received in adjacent base station, sends switching command to UE, and Target cell is A, UE carries out switching, attempt access community A, but now community A has been split into community A1 and A2, the coverage of Shi community, UE position A2, thus UE cannot access and causes handoff failure.
Because UE has moved on to the scope of community A2, after failure, UE selects community A2 to attempt RRC connection reconstruction, due to reconstruction information corresponding to You Liao community A2 of base station A, can make the success of RRC connection reconstruction, and call drop does not occur UE.
Embodiment tri-,
Because network load is lower, system does not need too high capacity, and simultaneously in order to reduce the mobility expense of system, current base station determines to carry out community merging by adjusting AAS, and Ba Liangge community A1 and A2 merge into community A.Before merging, as shown in Figure 5 b, after merging, cell topology as shown in Figure 5 a for cell topology.
Because traffic load is lighter, system does not need too high capacity, simultaneously in order to reduce the mobility expense of system, current base station (being called base station A) determines to adjust AAS pattern, Ba Liangge community A1 and A2 merge into community A, after wherein merging, ECGI, the PCI of community A are identical with community A1 with frequency configuration, and after merging, community A2 will disappear completely;
Before carrying out AAS mode adjustment, base station A towards periphery adjacent base station B, C, D, E and F sends a notification message, and has wherein comprised the information of the community A1 also existing after merging, as ECGI, PCI and frequency, and the ECGI of the community A2 disappearing after merging.
Receive after the notification message of base station A transmission adjacent base station (any one in B, C, D, E, F), if the UE of its service needs to switch, and target is the community A2 that is about to disappearance, calculates K corresponding to this community according to the mark comprising in the ECGI of community A1 (CellIdentity), PCI and frequency
eNB* and shortMAC-I, the mark (CellIdentity) of Bing Jiang A1 community, the K calculating
eNB* and shortMAC-I add in the additional reconstruction information in the RRC reconstruction information in handover request message, then send to target BS A by handover request signaling.
Base station A receives handover request message, for this UE sets up context, preserves the RRC reconstruction information of sending adjacent base station, but does not distribute wireless traffic bearing resource, then returns to switch and prepares failure response.
Base station A carries out the adjustment of AAS antenna mode, and community A1 and A2 merge into Yi Ge community A.
Adjacent base station is received to switch and is prepared failure response, can not be triggered to the switching of community A2.
Along with UE moves, leave gradually former Serving cell and enter into the coverage that merges rear community A, the radio link quality of UE deteriorates into RLF to a certain degree occurs afterwards, because UE has moved on to the scope of community A, select community A to attempt RRC connection reconstruction, due to reconstruction information corresponding to You Liao community A (A1 before merging) of base station A, can make the success of RRC connection reconstruction, there is not call drop in UE.
Embodiment tetra-,
Base station determines to carry out community merging by adjusting AAS, and Ba Liangge community A1 and A2 merge into community A.Before merging, as shown in Figure 5 b, after merging, cell topology as shown in Figure 5 a for cell topology.Before carrying out community A union operation, base station sends a notification message to adjacent base station.
Because traffic load is lighter, system does not need too high capacity, simultaneously in order to reduce the mobility expense of system, current base station (being called base station A) determines to adjust AAS pattern, Ba Liangge community A1 and A2 merge into community A, after wherein merging, ECGI, the PCI of community A are identical with community A1 with frequency configuration, and after merging, community A2 will disappear completely;
Before carrying out AAS mode adjustment, base station A towards periphery adjacent base station B, C, D, E and F sends a notification message, and has wherein comprised the information of the community A1 also existing after merging, as ECGI, PCI and frequency, and the ECGI of the community A2 disappearing after merging.
Receive after the notification message of base station A transmission adjacent base station (any one in B, C, D, E, F), if the UE of its service needs to switch, and target is the community A2 that is about to disappearance, calculates K corresponding to this community according to the mark comprising in the ECGI of community A1 (CellIdentity), PCI and frequency
eNB* and shortMAC-I, the mark (CellIdentity) of Bing Jiang A1 community, the K calculating
eNB* and shortMAC-I add in the additional reconstruction information in the RRC reconstruction information in handover request message, then send to target BS A by handover request signaling.
Base station A receives handover request message, for this UE sets up context, preserves the RRC reconstruction information of sending adjacent base station, distributes the wireless traffic bearing resource of request, then returns to switch and prepares success response.
Base station A carries out the adjustment of AAS antenna mode, and community A1 and A2 merge into Yi Ge community A.
Adjacent base station receives to switch and prepares success response, and send switching command to UE, Target cell is A2, and UE carries out switchings, and trial accesses community A2, but community A2 disappears, thereby UE cannot access and causes handoff failure.
Because UE has moved on to the scope of community A, select community A to attempt RRC connection reconstruction, due to reconstruction information corresponding to You Liao community A (A1 before merging) of base station A, can make the success of RRC connection reconstruction, there is not call drop in UE.
The embodiment of the present invention is corresponding subscriber equipment switching device shifter when a kind of base station configuration change is provided also, and this device is specially the base station of carrying out cell splitting or merging, and as shown in Figure 6 a, this device comprises:
Determining unit 601, need to carry out cell splitting or merging for determining;
Transmitting element 602, for sending a notification message to adjacent base station, carries the information of the community that the information of the home cell that divides or merge will occur and will generate in notification message, carry out UE switching by adjacent base station according to notification message.
Wherein, the information of community, specifically comprises:
The physical layer identifications of community;
The descending carrier frequency of community;
The overall identification of community.
Further, as shown in Figure 6 b, also comprise:
Switch preparatory unit 603, for before completing the configuration of cell splitting or merging, receive the handover request signaling that adjacent base station sends, and the Target cell of indicating UE to switch in handover request signaling is the community that is dividing or merging;
For UE sets up context, preserve the wireless link control RRC reconstruction information that adjacent base station is sent;
Send to switch to the adjacent base station that sends handover request and prepare failure response, cancel handover operation by the adjacent base station that sends handover request, or prepare success response for sending to switch to the adjacent base station that sends handover request after UE distribution wireless traffic bearing resource, prepare success response by this adjacent base station according to switching and send switching command to UE.
The embodiment of the present invention is corresponding subscriber equipment switching device shifter when a kind of base station configuration change is provided also, the base station that this device specifically switches for UE, and as shown in Figure 7, this device comprises:
Receiving element 701, is used to user equipment (UE) triggering to switch before preparation, receives the notification message of the base station transmission of carrying out cell splitting or merging, carries the information of the community that the information of the home cell that divides or merge will occur and will generate in notification message;
Switch unit 702, for being that UE switches according to notification message.
Wherein, the information of community, specifically comprises:
The physical layer identifications of community;
The descending carrier frequency of community;
The overall identification of community.
Switch unit 702 specifically for:
Triggering and switching preparation for UE, and when Target cell is the community that division will occur or merge of indicating in notification message, determine according to mark, physical layer identifications and the frequency of newly-generated community after division or merging Hou community key and the shortMAC-I that this community is corresponding;
The mark of community, key and shortMAC-I are added in the additional reconstruction information in wireless link control RRC reconstruction information, and send to target BS by handover request message, be that UE sets up context by target BS base station, preserve the RRC reconstruction information that adjacent base station is sent;
The switching that receiving target base station sends prepares after failure response to cancel handover operation, or receiving target base station is that UE distributes the switching sending after wireless traffic bearing resource to prepare success response, and prepares success response and send switching command to UE according to switching.
Wherein, carrying out the base station of cell splitting or merging and switching the base station of preparing for user equipment (UE) triggering is two base stations under Same Scene, but base station can possess carries out the base station of cell splitting or merging and triggers the function of the base station of switching preparation for user equipment (UE) simultaneously.
The embodiment of the present invention is corresponding subscriber equipment switched system when a kind of base station configuration change is provided also, as shown in Figure 8, comprising:
Carry out the base station 801 of cell splitting or merging, need to carry out cell splitting or merging for determining; Send a notification message to adjacent base station, in notification message, carry the information of the community that the information of the home cell that divides or merge will occur and will generate, carry out UE switching by adjacent base station according to notification message.
For the base station 802 that user equipment (UE) switches, be used to user equipment (UE) to trigger and switch before preparation, receive the notification message of the base station transmission of carrying out cell splitting or merging; Be that UE switches according to notification message.
The method for user device switching when embodiment of the present invention provides a kind of base station configuration change, Apparatus and system, determine in base station when need to carrying out cell splitting or merging, base station sends a notification message to adjacent base station, the information of the community of carrying the information of the home cell that division will occur or merge in described notification message and will generate, carry out UE by adjacent base station according to described notification message and switch preparation, owing to having comprised the community that will generate or the RRC reconstruction information that merges rear community in handover request signaling, once so switch unsuccessfully, RRC connection reconstruction can successfully be carried out according to these information in the base station that cell splitting or merging occur, avoid conversation loss, reduce the impact of base station configuration change on QoS of customer.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and amendment to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (13)
1. the method for user device switching when configuration change of base station, is characterized in that, comprising:
Base station is determined need to carry out cell splitting or merging;
Base station sends a notification message to adjacent base station, carries the information of the community that the information of the home cell that divides or merge will occur and will generate in described notification message, carries out UE switching by adjacent base station according to described notification message.
2. the method for claim 1, is characterized in that, the information of described community, specifically comprises:
The physical layer identifications of community;
The descending carrier frequency of community;
The overall identification of community.
3. the method for claim 1, is characterized in that, also comprises:
Base station, before completing the configuration of cell splitting or merging, receives the handover request signaling that adjacent base station sends, and the Target cell of indicating UE to switch in handover request signaling is the community that is dividing or merging;
Base station is that described UE sets up context, preserves the radio resource control RRC reconstruction information that adjacent base station is sent;
Send to switch to the adjacent base station that sends handover request and prepare failure response, adjacent base station by described transmission handover request is cancelled handover operation, or be to send and switch preparation success response to the adjacent base station that sends handover request after described UE distributes wireless traffic bearing resource, prepare success response by this adjacent base station according to described switching and send switching command to described UE.
4. the method for user device switching when configuration change of base station, is characterized in that, comprising:
Switch before preparation for user equipment (UE) triggering, receive the notification message of the base station transmission of carrying out cell splitting or merging, in described notification message, carry the information of the community that the information of the home cell that divides or merge will occur and will generate;
Be that described UE switches according to described notification message.
5. method as claimed in claim 4, is characterized in that, the information of described community, specifically comprises:
The physical layer identifications of community;
The descending carrier frequency of community;
The overall identification of community.
6. method as claimed in claim 4, is characterized in that, is that described UE switches according to described notification message, specifically comprises:
Triggering and switching preparation for UE, and when Target cell is the community that division will occur or merge of indicating in described notification message, according to newly-generated community after division or merge key that mark, physical layer identifications and the frequency of Hou community determine that this community is corresponding and the verifying SMS code for signalling message data integrality;
The mark of described community, key and the verifying SMS code for signalling message data integrality are added in the additional reconstruction information of radio resource control RRC reconstruction information, and send to target BS by handover request message, be that described UE sets up context by described target BS base station, preserve described RRC reconstruction information;
The switching that receives described target BS transmission prepares to cancel handover operation after failure response, or receiving described target BS is that described UE distributes the switching sending after wireless traffic bearing resource to prepare success response, and sends switching command according to described switching preparation success response to UE.
7. the subscriber equipment switching device shifter when configuration change of base station, is characterized in that, comprising:
Determining unit, need to carry out cell splitting or merging for determining;
Transmitting element, for sending a notification message to adjacent base station, carries the information of the community that the information of the home cell that divides or merge will occur and will generate in described notification message, carry out UE switching by adjacent base station according to described notification message.
8. device as claimed in claim 7, is characterized in that, the information of described community, specifically comprises:
The physical layer identifications of community;
The descending carrier frequency of community;
The overall identification of community.
9. device as claimed in claim 7, is characterized in that, also comprises:
Switch preparatory unit, for before completing the configuration of cell splitting or merging, receive the handover request signaling that adjacent base station sends, and the Target cell of indicating UE to switch in handover request signaling is the community that is dividing or merging;
For described UE sets up context, preserve the radio resource control RRC reconstruction information that adjacent base station is sent;
Send to switch to the adjacent base station that sends handover request and prepare failure response, adjacent base station by described transmission handover request is cancelled handover operation, or be to send and switch preparation success response to the adjacent base station that sends handover request after described UE distributes wireless traffic bearing resource, prepare success response by this adjacent base station according to described switching and send switching command to described UE.
10. the subscriber equipment switching device shifter when configuration change of base station, is characterized in that, comprising:
Receiving element, is used to user equipment (UE) triggering to switch before preparation, receives the notification message of the base station transmission of carrying out cell splitting or merging, carries the information of the community that the information of the home cell that divides or merge will occur and will generate in described notification message;
Switch unit, for being that described UE switches according to described notification message.
11. devices as claimed in claim 10, is characterized in that, the information of described community, specifically comprises:
The physical layer identifications of community;
The descending carrier frequency of community;
The overall identification of community.
12. devices as claimed in claim 10, is characterized in that, described switch unit specifically for:
Triggering and switching preparation for UE, and when Target cell is the community that division will occur or merge of indicating in described notification message, according to newly-generated community after division or merge key that mark, physical layer identifications and the frequency of Hou community determine that this community is corresponding and the verifying SMS code for signalling message data integrality;
The mark of described community, key and the verifying SMS code for signalling message data integrality are added in the additional reconstruction information of radio resource control RRC reconstruction information, and send to target BS by handover request message, be that described UE sets up context by described target BS base station, preserve described RRC reconstruction information;
The switching that receives described target BS transmission prepares to cancel handover operation after failure response, or receiving described target BS is that described UE distributes the switching sending after wireless traffic bearing resource to prepare success response, and prepares success response to described UE transmission switching command according to described switching.
Subscriber equipment switched system when 13. 1 kinds of base station configuration changes, is characterized in that, comprising:
Carry out the base station of cell splitting or merging, need to carry out cell splitting or merging for determining; Send a notification message to adjacent base station, in described notification message, carry the information of the community that the information of the home cell that divides or merge will occur and will generate, carry out UE switching by adjacent base station according to described notification message;
For the base station that user equipment (UE) switches, be used to user equipment (UE) to trigger and switch before preparation, receive the notification message of the base station transmission of carrying out cell splitting or merging; Be that described UE switches according to described notification message.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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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 |
| 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 CN104105145B (en) | 2017-07-14 |
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Also Published As
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| CN104105145B (en) | 2017-07-14 |
| WO2014161450A1 (en) | 2014-10-09 |
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