CN103796256A

CN103796256A - Mobile robustness optimization method and device based on mobile state information and adjacent region proximity

Info

Publication number: CN103796256A
Application number: CN201410060006.8A
Authority: CN
Inventors: 唐伦; 刘伊莎; 陈前斌
Original assignee: Chongqing University of Post and Telecommunications
Current assignee: Chongqing University of Post and Telecommunications
Priority date: 2014-02-21
Filing date: 2014-02-21
Publication date: 2014-05-14
Anticipated expiration: 2034-02-21
Also published as: CN103796256B

Abstract

The invention discloses a mobile robustness optimization method and device based on mobile state information and adjacent region proximity and belongs to the technical field of wireless communication. In the method, a micro base station controller estimates real-time mobile state information of mobile UE according to cyclic measuring reports obtained from the mobile UE; then the mobile UE is subjected to switching control according to an adjacent region deploying environment, and frequent switching between a macrocell and a microcell of the mobile UE is avoided; and finally, during a switching process, switching preparing operation to a preparing target cell is brought forward, and according to the moving speed of the mobile UE and the PDCCH interruption point of the service microcell, the switching condition for avoiding ping-pong switching is computed. Compared with the prior art, the prediction success rate of the preparing target cell is improved, frequency spectrum resource using rate is improved, frequent switching between the macrocell and the microcell of the mobile UE is lowered, then network signaling expenditure is reduced, SToS rate is not increased, meanwhile, the switching success rate of the mobile UE can be improved, and then user experience is improved.

Description

Based on mobile robustness optimization method and the device of mobile status information and adjacent area adjacency

Technical field

The invention belongs to wireless communication technology field, relate to a kind of mobile robustness optimization method and device based on mobile status information and adjacent area adjacency.

Background technology

Along with the widespread adoption of LTE technology, user is more and more higher to the requirement of data traffic, and traditional macro base station has run into the bottleneck of networking and covering, and LTE-A isomery cellulor network arises at the historic moment.Isomery cellulor network is placed in macro base station coverage area low power nodes cloth to absorb the hot spot region of grand network or to cover its blind spot region, thereby forms the heterogeneous system with the different node types that cover.Typical low power nodes comprises micro-base station (Pico), Home eNodeB (Femto) and relay base station (Relay) etc.Can obtain according to the simulation result in 3GPP TR36.814, the overall performance of handoffs (HOF/ping-pong/SToS) under heterogeneous network is more far short of what is expected than traditional pure macrocellular network, when especially mobile UE fast moving.Wherein, the handover failure rate HOF maximum of P2M, be mainly State2HOF, its basic reason is that mobile UE translational speed is too fast, to such an extent as to the PDCCH uplink authorization information from service Pico cell that switching command or mobile UE receive is because the strong interference of macrocellular is destroyed.

TTT(Time to Trigger) timer is to trigger measurement report need to meet duration of time criterion, when meet A3 event enter or exit criteria could trigger corresponding measurement after reaching this time and reports.Under High-speed Circumstance, because UE translational speed is very fast, variations is fast, larger if TTT arranges, and measures the channel quality of community and is difficult to mate with the channel quality after the TTT moment, easily causes handoff failure.

In prior art, for the handoff failure being caused by State2HOF, a kind of TTT zoom mechanism based on velocity estimation MSE is proposed.The method adopts the TTT timer of different durations to control switching speed for the mobile UE of different mobile statuss.The method can be accelerated the switching of macrocell to Microcell, improves the handover success rate under heterogeneous network.Shortcoming is to improve the pingpang handoff rate under low speed scene and cannot avoid handoff failure under High-speed Circumstance.Therefore, the method is limited to the optimization function of the mobile robustness under heterogeneous network.

3GPP RAN2, for above problem, proposes a kind of method for handover control that stops high-speed mobile UE equipment incision Pico cell.By avoiding high-speed mobile UE to reduce the handover failure rate occurring between macrocell and Microcell to the switching of Pico cell.The shortcoming of the method is, in the time that mobile UE need to switch in a hurry even set out RRC connection reconstruction mechanism or T310 and shifts to an earlier date interrupt mechanism, will certainly increase the service disruption rate of mobile UE.In addition, in the time that mobile UE continues through multiple different Picocell, because handover process is all prohibited, service disruption will be fatal.

In sum, need a kind of mobile robustness Enhancement Method that in intensive isomery cellulor network, outwards switch Microcell that is applicable to, can allow high-speed mobile UE to switch in picocell, reduce the service disruption rate of mobile UE, improve telecommunication service quality.Meanwhile, in the time that high-speed mobile UE is outwards switched by Microcell, in not improving pingpang handoff rate, reduce handover failure rate HOF.

In addition, along with user is increasing to data traffic demand, the quantity of the Microcell of disposing in macrocell will get more and more.When the service Microcell of mobile UE intensive while having disposed some Microcells around, high-speed mobile UE occur possibly Microcell to macrocell again to the frequent switching of Microcell.These frequent switchings not only can bring a large amount of network signal loads, and also only can produce a small amount of load gain in mobile UE access macrocell blink.Therefore, when mobile UE carries out community selection under heterogeneous network, need a kind of method for handover control make to reduce the frequent switching times between macrocell and Microcell, the load gain of mobile UE is maximized.

Summary of the invention

In view of this, the object of the present invention is to provide a kind of based on user mobile information estimate, adjacent area deployed environment and table tennis avoids switching condition to carry out mobile robustness optimization method and the device of switching controls.

For achieving the above object, the invention provides following technical scheme:

Based on a mobile robustness optimization method for mobile status information and adjacent area adjacency, comprise the following steps:

Obtain the current translational speed of mobile UE, moving direction and current position A;

Determine the cell ID of alternative target community and the adjacency with service Microcell thereof according to position A and moving direction;

Upgrade the cell ID of the alternative target community of described mobile UE according to the translational speed of described adjacency and described mobile UE; According to the cell ID of described alternative target community, switch beamhouse operation with alternative target community, obtain channel resource and the reserved resource information of described alternative target community;

Obtain the RE bias of described alternative target community;

Be need to adopt the Microcell of RE technology time in described alternative target community, macro base station controller to the macrocell that covers service Microcell sends ABS request instruction, and receiving ABS confirmation instruction, the alternative target community of carrying in described request instruction is the reserved resource information of described mobile UE;

Macro base station controller receives the ABS request instruction from service Microcell, carries the band information that need to be configured to ABS in described instruction;

Macro base station controller is according to described ABS request instruction configuration corresponding A BS subframe;

In the time completing the configuration of ABS subframe, macro base station controller sends ABS to micro-base station controller and confirms instruction;

Obtain according to the current translational speed of described mobile UE the table tennis that is switched to described alternative target community and avoid switching condition;

Send switching command to described mobile UE, in described switching command, carry the cell ID of described alternative target community, described table tennis is avoided switching condition and described RE bias;

Described mobile UE receives the switching command from service Microcell, carries the cell ID of described alternative target community, described table tennis is avoided switching condition and described RE bias in described switching command;

In the time that described table tennis is avoided switching condition, described mobile UE sends and switches indication to micro-base station controller, switches the cell ID that carries Target cell in indication;

Receive the switching indication from described UE, in described switching indication signaling, carry the cell ID of Target cell;

When cell ID in described Target cell and described alternative target community is identical, controls described mobile UE and be switched to described alternative target community;

When cell ID in described Target cell and described alternative target community is different, controls described mobile UE and be switched to described Target cell, discharge the channel reservation resource of described alternative target community.

Further, obtaining the current translational speed of described mobile UE and the process of moving direction specifically comprises:

Inquire about measurement report record sheet, obtain the poor Δ t of Measuring Time of nearest twice measurement report;

Inquiry neighboring BS information table, obtains any three adjacent base station a, b, the positional information of c and transmitting power;

Inquiry measurement report record sheet, obtains measurement report second from the bottom time;

According to adjacent base station a, b, second from the bottom RSRP measurement report values, positional information and the transmitting power of c, determine that the RSRP equivalence of three base stations encircles, and the intersection point of the equivalent ring of described three RSRP is defined as to measurement report measuring position m second from the bottom time;

Inquiry measurement report memory cell, obtains the last measurement report;

According to adjacent base station a, b, the last RSRP measurement report values, positional information and the transmitting power of c, determine that the RSRP equivalence of three base stations encircles, and the intersection point of the equivalent ring of described three RSRP is defined as to the last measurement report measuring position n;

Calculate the current translational speed of described mobile UE according to Δ t, m and n;

Calculate the current moving direction of described mobile UE according to m and n.

Further, obtaining the current position A of described mobile UE comprises the following steps:

Inquiry measurement report record sheet, obtain current time and last time measurement report Measuring Time time difference;

Inquire about UE measuring state information table, obtain measuring position, translational speed, the moving direction of the last measurement report;

Calculate current location A according to the measuring position of described time difference and the last measurement report, translational speed, moving direction;

Obtain the cell ID of alternative target community and the adjacency with service Microcell thereof according to position A and described moving direction, specifically comprise the following steps:

Inquiry neighboring BS information table, obtains the front cell ID of community, described mobile UE front and the base station spacing ISD with service Microcell thereof according to described position A and described moving direction;

Front cell ID is defined as to the cell ID of alternative target community;

Inquiry ISD, to the mapping table of adjacency, obtains the adjacency that described ISD is corresponding.

Further, the described translational speed according to adjacency and mobile UE is upgraded the cell ID of the alternative target community of described mobile UE, specifically comprises:

Obtain described mobile the UE adjacent Microcell that may move into and the adjacency of serving Microcell;

While being distant, the macrocell that covers service Microcell is updated to the alternative target community of described mobile UE in adjacency;

In the time that adjacency is close together, inquiry UE measuring state information memory cell, obtains the current translational speed of described mobile UE;

In the time that described mobile UE is lower-speed state, the macrocell that covers service Microcell is updated to the alternative target community of mobile UE;

In the time that described mobile UE is fast state, do not upgrade alternative target community.

The present invention also provides a kind of micro-base station controller, comprising:

Measurement report memory cell: for storing measurement report record sheet, in table, record the periodic measurement report of described mobile UE and the Measuring Time of nearest twice, described measurement report comprises measurement ID, serves micro-base station RSRP value, adjacent base station RSRP value, in the time receiving new periodic measurement report, upgrade described measurement report record sheet;

UE measuring state information memory cell: for storing UE measuring state information table, in table, record translational speed, moving direction and the positional information of UE in the time of the last periodic measurement, calculate described translational speed, moving direction and position according to measurement report record sheet, in the time that described measurement report record sheet upgrades, upgrade described UE measuring state information table;

Acquiring unit one: for obtaining described mobile UE current translational speed and moving direction;

Acquiring unit two: for obtaining the current position A of described mobile UE;

Acquiring unit three: determine the cell ID of alternative target community and the adjacency with service Microcell thereof for obtaining according to described position A and described moving direction;

Updating block one: for upgrade the cell ID of the alternative target community of described mobile UE according to the translational speed of described adjacency and described mobile UE;

Switch beamhouse operation performance element: for according to the cell ID of described alternative target community, switch beamhouse operation with alternative target community, obtain channel resource and the reserved resource information of described alternative target community;

Switch and be ready to complete signaling receiving element: be ready to complete signaling for switching, described switching is ready to complete the reserved resource information of carrying described alternative target community in signaling;

Acquiring unit four: for obtaining the RE bias of described alternative target community;

ABS request instruction transmitting element: for being need to adopt the Microcell of RE technology time in described alternative target community, macro base station controller to the macrocell that covers service Microcell sends ABS request instruction, and described ABS request instruction comprises that alternative target community is the reserved resource information of described mobile UE;

ABS confirms command reception unit: confirm instruction for receiving ABS;

Acquiring unit five: the table tennis that is switched to described alternative target community for obtaining is avoided switching condition;

Switching command transmitting element: for sending switching command to described mobile UE, carry cell ID and the described RE bias of described alternative target community in described switching command;

Switch indication receiving element: for receiving the switching indication from described mobile UE;

Switch performance element: when identical for the cell ID in described Target cell and described alternative target community, control described mobile UE and be switched to described alternative target community; When cell ID in described Target cell and described alternative target community is different, controls described mobile UE and be switched to described Target cell, discharge the channel reservation resource of described alternative target community.

Further, described UE measuring state information memory cell comprises:

Acquisition module I: for inquiring about measurement report memory cell, obtain the poor Δ t of Measuring Time of nearest twice measurement report;

Enquiry module II: for inquiring about neighboring BS information table, obtain any three adjacent base station a, b, the positional information of c and transmitting power;

Acquisition module III: for inquiring about measurement report memory cell, obtain measurement report second from the bottom time;

Determination module IV: for determining second from the bottom measurement report measuring position m, according to adjacent base station a, b, RSRP report value, positional information and the transmitting power of c, the equivalent ring of RSRP of determining three base stations, is defined as described measuring position m by the intersection point of the equivalent ring of described three RSRP;

Acquisition module V: for inquiring about measurement report memory cell, obtain the last measurement report;

Determination module VI: for determining the last measurement report measuring position n, according to adjacent base station a, b, RSRP report value, positional information and the transmitting power of c, the equivalent ring of RSRP of determining three base stations, is defined as described measuring position n by the intersection point of the equivalent ring of described three RSRP;

Computing module VII: calculate the current translational speed of described mobile UE according to Δ t, m and n;

Computing module VIII: calculate the current moving direction of described mobile UE according to m and n.

Further, described acquiring unit two comprises:

Acquisition module I: for inquiring about measurement report memory cell, obtain current time and last time measurement report Measuring Time time difference;

Enquiry module II: for inquiring about UE measuring state information memory cell, obtain measuring position, translational speed, the moving direction of the last measurement report;

Computing module III: measuring position, translational speed, the moving direction of the last measurement report inquiring for the described time span obtained according to acquisition module I and enquiry module II calculate described current location A;

Described acquiring unit three comprises:

Acquisition module I: for inquiring about neighboring BS information table, obtain the front cell ID of community, described mobile UE front and with service Microcell base station spacing ISD;

Determination module II: for front cell ID being defined as to the cell ID of alternative target community;

Acquisition module III: for inquiring about ISD-adjacency mapping table, obtain the corresponding adjacency of described ISD.

Further, described updating block one comprises:

Acquisition module I: for inquiring about the result of acquiring unit three, obtain described mobile the UE adjacent Microcell that may move into and the adjacency of serving Microcell;

Judge module II: for judging whether described adjacency is distant, if so, forwards update module III to, otherwise, forward acquisition module IV to;

Update module III: for the macrocell that covers service Microcell is updated to described alternative target community;

Acquisition module IV: for inquiring about UE measuring state information memory cell, obtain the current translational speed of described mobile UE;

Judge module V: whether be low speed for the present speed that judges described mobile UE, if so, forward update module III to, otherwise, do not upgrade.

The present invention also provides a kind of macro base station controller, comprising: for receiving the ABS request instruction receiving element of ABS request instruction; For configure the ABS dispensing unit of corresponding A BS subframe according to described ABS request instruction; The ABS that confirms instruction for sending ABS confirms instruction sending unit.

The present invention also provides a kind of mobile UE subscriber equipment, comprising: switching command receiving element: for receiving switching command, carry the cell ID of described alternative target community in described switching command, described table tennis is avoided switching condition and described RE bias; Switch indication transmitting element: in the time that described table tennis avoids switching condition to meet, send and switch indication to micro-base station controller, in described switching indication, carry the cell ID of Target cell.

Beneficial effect of the present invention is: with respect to prior art, technical solutions according to the invention have improved the success rate prediction of alternative target community, have improved frequency spectrum resource utilization rate; Reduce the frequent switching of mobile UE between macrocell and Microcell, and then reduced network signaling overhead; In not improving SToS and leading, can improve the handover success rate of mobile UE, and then improve user experience.

Accompanying drawing explanation

In order to make object of the present invention, technical scheme and beneficial effect clearer, the invention provides following accompanying drawing and describe:

Fig. 1 is the flow chart of mobile robustness optimization method of the present invention;

Fig. 2 is the method flow diagram that obtains the current translational speed of mobile UE and moving direction provided by the invention;

Fig. 3 is the method flow diagram that obtains the current position A of mobile UE provided by the invention;

Fig. 4 provided by the inventionly obtains the cell ID of alternative target community and the method flow diagram with the adjacency of service Microcell thereof according to described position A and described moving direction;

Fig. 5 is the method flow diagram that the translational speed according to described adjacency and described mobile UE provided by the invention is upgraded the cell ID of the alternative target community of described mobile UE;

Fig. 6 is mobile UE mobile route and cell deployment schematic diagram in this application scene;

Fig. 7 is the schematic diagram of determining the measuring position of nearest twice measurement of mobile UE in this application scene according to measurement report record sheet;

Fig. 8 is the schematic diagram of determining the current location of mobile UE in this application scene according to UE measuring state information table;

Fig. 9 is the schematic diagram that upgrades alternative target community in this application scene according to the adjacency of the translational speed of mobile UE and described alternative target community and service Microcell;

Figure 10 is the schematic diagram of micro-base station controller of providing of the embodiment of the present invention;

Figure 11 is the schematic diagram of UE measuring state information memory cell in micro-base station controller of providing of the embodiment of the present invention;

Figure 12 is the schematic diagram of acquiring unit two in micro-base station controller of providing of the embodiment of the present invention;

Figure 13 is the schematic diagram of acquiring unit three in micro-base station controller of providing of the embodiment of the present invention;

Figure 14 is the schematic diagram of updating block one in micro-base station controller of providing of the embodiment of the present invention;

Figure 15 is the schematic diagram of the macro base station controller that provides of the embodiment of the present invention;

Figure 16 is the schematic diagram of the mobile UE subscriber equipment that provides of the embodiment of the present invention.

Embodiment

Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.

Referring to Fig. 1, Fig. 1 is the flow chart of the mobile robustness optimization method that provides of the embodiment of the present invention.In the present embodiment, the mobile robustness optimization process that micro-base station controller is carried out specifically can comprise:

Steps A 1, obtain described mobile UE current translational speed and moving direction.

Concrete, micro-base station controller can be inquired about UE measuring state information table and obtain described mobile UE current translational speed and moving direction.In example of the present invention, the change of the mobile status by mobile UE within the measurement report cycle is ignored, and calculates the current translational speed of mobile UE and moving direction according to the measuring position of nearest twice measurement report and temporal information.

Steps A 2, obtain the current position A of described mobile UE.

Concrete, micro-base station controller can be inquired about UE measuring state information table, obtains measuring position, translational speed, the moving direction in the last measurement report moment.Again according to the poor current position A of described mobile UE that calculates of the Measuring Time of current time and the last measurement report.

Steps A 3, determine the cell ID of alternative target community and the adjacency with service Microcell thereof according to described position A and described moving direction.

Concrete, micro-base station controller can be determined the cell ID of alternative target community and the adjacency with service Microcell thereof according to described current location A and described current moving direction.In the embodiment of the present invention, the cell ID of the community, front of the described mobile UE being determined by described position A and described moving direction is defined as to the cell ID of alternative target community.Moreover, according to neighboring BS information table, obtaining community, described front and the base station spacing ISD that serves Microcell, inquiry ISD, to the mapping table of adjacency, obtains the adjacency that described ISD is corresponding.

Steps A 4, upgrade the cell ID of the alternative target community of described mobile UE according to the translational speed of described adjacency and described mobile UE.

Concrete, micro-base station controller can be after obtaining described adjacency, judges whether described adjacency is distant, if so, the macrocell that covers service Microcell is updated to alternative target community.If not, obtain the translational speed of described mobile UE.Judge whether described translational speed is low speed, if so, the macrocell that covers service Microcell is updated to alternative target community.If not, do not upgrade described alternative target community.

Steps A 5, according to the cell ID of described alternative target community, switch beamhouse operation with alternative target community, obtain channel resource and the reserved resource information of described alternative target community.

Concrete, micro-base station controller can, according to the cell ID of described alternative target community, switch beamhouse operation with alternative target community, obtains the channel resource of alternative target community, sets up wireless channel, completes switching beamhouse operation.Finally obtain the resource information of described channel reservation;

Steps A 6, obtain the RE bias of described alternative target community.

Concrete, micro-base station controller can be inquired about RE bias table, obtains corresponding RE bias according to the cell type of described alternative target community and with the base station spacing (ISD, Inter Site Distance) of service Microcell.If alternative target community is macrocell, do not need to adopt RE technology, i.e. RE bias=0dB.If alternative target community is Microcell, front, in the time that Microcell, front and service Microcell are overlapping or tangent, RE bias=0dB is set, in the time that Microcell, front is separated by a segment distance with service Microcell, determine non-zero RE bias according to ISD.

Wherein the example arrangement of RE bias table is as shown in table 1:

Table 1.RE bias table

Alternative target cell type	ISD(m)	RE-0ffset(dB)
			macrocell	(-∞，+∞)	0
picocell	……	……

Steps A 7, be while needing to adopt the Microcell of RE technology in described alternative target community, send ABS request instruction to the macro base station controller of the macrocell that covers service Microcell, and receive ABS and confirm instruction.The alternative target community of carrying in described request instruction is the reserved resource information of described mobile UE.

Concrete, micro-base station controller can be, need adopt the Microcell of RE technology time, to send ABS request instruction to the macro base station controller of the macrocell that covers service Microcell in alternative target community, and receives ABS confirmation instruction.The alternative target community of carrying in described request instruction is the reserved resource information of described mobile UE, so that macro base station controller is configured to ABS subframe according to described reserved resource information by the corresponding frequency band of macrocell.

Steps A 8, macro base station controller receive the ABS request instruction from service Microcell, carry the band information that need to be configured to ABS in described instruction.

Concrete, macro base station controller receives the ABS request instruction from micro-base station controller of service Microcell, carries the band information that need to be configured to ABS in described instruction.

Steps A 9, macro base station controller are according to described ABS request instruction configuration corresponding A BS subframe.

Concrete, macro base station controller can be that the corresponding frequency band of macrocell is configured to ABS subframe by the reserved resource information of described mobile UE according to the alternative target community of carrying in described ABS request instruction.

Steps A 10, in the time completing the configuration of ABS subframe, macro base station controller sends ABS to micro-base station controller and confirms instruction.

Concrete, macro base station controller, in the time completing the configuration of ABS subframe, sends ABS to micro-base station controller of service Microcell and confirms instruction.

Steps A 11, obtain according to the current translational speed of described mobile UE the table tennis that is switched to described alternative target community and avoid switching condition.

Concrete, micro-base station controller of service Microcell can be according to the current translational speed of described mobile UE, and inquiry table tennis is avoided handoff parameter table, obtains the table tennis that is switched to described alternative target community and avoids switching condition.Example of the present invention is quoted the simulation result of the hot-zone scene in 3GPPTR36.839, pingpang handoff rate is defined as to table tennis lower than 10% switching condition and avoids switching condition.

Wherein table tennis avoids the example arrangement of handoff parameter table as shown in table 1:

Table 2. table tennis is avoided handoff parameter table

Movement speed v (Km/h)	Mobile status	Switch executive condition offset (TTT=0ms)
			(0,30)	Low speed	2.5dB
(30,120)	Middling speed	2.5dB
			(120,+∞)	At a high speed	2dB

Steps A 12, send switching command to described mobile UE, in described switching command, carry the cell ID of described alternative target community, described table tennis is avoided switching condition and described RE bias.

Concrete, micro-base station controller can send switching command to described mobile UE, carries the cell ID of described alternative target community, described table tennis is avoided switching condition and described RE bias in described switching command.So that described mobile UE reshuffles the handoff parameter of described alternative target community according to the cell ID of the described alternative target community of carrying in switching command;

Steps A 13, described mobile UE receive the switching command from service Microcell, carry the cell ID of described alternative target community, described table tennis is avoided switching condition and described RE bias in described switching command.

Concrete, described mobile UE can receive the switching command from service Microcell, carries the cell ID of described alternative target community, described table tennis is avoided switching condition and described RE bias in described switching command.And avoid switching condition and described RE bias to reshuffle the handoff parameter of described alternative target community according to the cell ID of described alternative target community, described table tennis;

Steps A 14, in the time that described table tennis is avoided switching condition, described mobile UE sends and switches indication to micro-base station controller, carries the cell ID of Target cell in described switching indication.

Concrete, described mobile UE can be in the time that described table tennis be avoided switching condition, and described mobile UE sends and switches indication to micro-base station controller, carries the cell ID of Target cell in described switching indication.So that micro-base station controller carries out switching controls operation according to the cell ID of described Target cell;

Steps A 15, reception are indicated from the switching of described UE, carry the cell ID of Target cell in described switching indication signaling.

Concrete, base station controller can receive the switching indication from described mobile UE, carries the cell ID of Target cell in described switching indication signaling.

When steps A 16, cell ID in described Target cell and described alternative target community are identical, control described mobile UE and be switched to described alternative target community.

Concrete, base station controller can, in the time that the cell ID of described Target cell and described alternative target community is identical, is controlled described mobile UE and be switched to described alternative target community.

When steps A 17, cell ID in described Target cell and described alternative target community are different, control described mobile UE and be switched to described Target cell, discharge the channel reservation resource of described alternative target community.

Concrete, base station controller can, in the time that the cell ID of described Target cell and described alternative target community is different, is controlled described mobile UE and be switched to described Target cell, discharges the channel reservation resource of described alternative target community.

In addition, in embodiments of the present invention, after execution of step A6, if the RE bias obtaining is nonzero value, described alternative target community need to adopt RE technology, continues execution step A7～A17.If the RE bias obtaining is 1 o'clock, described alternative target community does not need to adopt RE technology, leaps to steps A 11, continues execution step A11～A17.

In embodiments of the present invention, micro-base station controller judges whether to control mobile UE according to the adjacency of adjacent Microcell, the front of mobile UE and service Microcell and directly cuts adjacent Microcell, front and avoid the frequent switching of mobile UE between macrocell and Microcell.With respect in prior art in the time carrying out handover measurement, use reference measurement parameter to compare, the embodiment of the present invention makes contiguous Microcell, front adopt RE technology to increase the probability of mobile UE incision Microcell, front, having reduced the SToS of mobile UE in macrocell leads, alleviate the frequent switching of mobile UE between macrocell and Microcell, and then reduced network signaling overhead.

Meanwhile, in embodiments of the present invention, micro-base station controller shifts to an earlier date the switching beamhouse operation to alternative target community, and calculates according to the PDCCH point of interruption of the translational speed of mobile UE and service Microcell the switching condition of avoiding pingpang handoff.With respect to the TTT(TimeToTrigger based on moving speed estimation in prior art) timer zoom mechanism compares, the embodiment of the present invention is more reasonable in switching condition decision-making, in not improving SToS and leading, improve the handover success rate of mobile UE, improve user experience.

Referring to Fig. 2, Fig. 2 be the embodiment of the present invention provide obtain the current translational speed of described mobile UE and the method flow diagram of moving direction.In embodiments of the present invention, the step (steps A 1) that micro-base station controller obtains the current translational speed of described mobile UE and moving direction can comprise:

Step B1, inquiry measurement report record sheet, obtain the poor Δ t of Measuring Time of nearest twice measurement report.

Concrete, micro-base station controller can be inquired about measurement report record sheet, obtains the poor Δ t of Measuring Time of nearest twice measurement report.Wherein, this measurement report record sheet is the information table in measurement report memory cell in micro-base station, in table, record the periodic measurement report of described mobile UE and the Measuring Time of nearest twice, described measurement report comprises measurement ID, serves micro-base station RSRP value, adjacent base station RSRP value.In the time receiving new periodic measurement report, upgrade described measurement report record sheet.

Step B2, inquiry neighboring BS information table, obtain any three adjacent base station a, b, the positional information of c and transmitting power.

Concrete, micro-base station controller can be inquired about neighboring BS information table, obtains any three adjacent base station a, b, the positional information of c and transmitting power.Wherein, any three adjacent base station a, b, the positional information of c can be the positional information with respect to this base station, the positional information under the coordinate system of setting up take the position of this base station as (0,0) origin of coordinates.

Step B3, inquiry measurement report record sheet, obtain measurement report second from the bottom time.

Concrete, micro-base station controller can be inquired about measurement report record sheet, obtains measurement report second from the bottom time.Wherein, this second from the bottom measurement report refers to by current time and calculates to the historical juncture, second from the bottom the measurement report that described mobile UE reports.Owing at most only recording twice measurement report in measurement report record sheet, therefore the Measuring Time of this second from the bottom measurement report in measurement report record sheet is the earliest.

Step B4, according to adjacent base station a, b, second from the bottom RSRP measurement report values, positional information and the transmitting power of c, determine the equivalent ring of RSRP of three base stations.The intersection point of the equivalent ring of described three RSRP is defined as to measurement report measuring position m second from the bottom time.

Concrete, micro-base station controller can be according to adjacent base station a, b, and second from the bottom RSRP measurement report values, positional information and the transmitting power of c, determine that the RSRP equivalence of three base stations encircles.The intersection point of the equivalent ring of described three RSRP is defined as to measurement report measuring position m second from the bottom time.Wherein, the equivalent ring of this RSRP be by centered by base station to extraradial harmless transmitting power model, stack path loss prediction model obtains.Under this model, the equivalent region that measures RSRP in community is an annulus.The center of circle of annulus is the position of the base station of surveying that measured value is corresponding, and radius is that measurement point is the distance of UE position and base station.Each RSRP report value is corresponding to the equivalent ring of a RSRP.Therefore, utilize the RSRP value of three base stations that measurement point measures to determine three

equivalent rings

1,2,3 of corresponding RSRP, the intersection point of

annulus

1,2,3 can be defined as to RSRP measurement point, i.e. the position of UE.

Step B5, inquiry measurement report memory cell, obtain the last measurement report.

Concrete, micro-base station controller can be inquired about measurement report record sheet, obtains the last measurement report.The Measuring Time of this last time measurement report in measurement report record sheet is the latest.

Step B6, according to adjacent base station a, b, the last RSRP measurement report values, positional information and the transmitting power of c, determine the equivalent ring of RSRP of three base stations.The intersection point of the equivalent ring of described three RSRP is defined as to the last measurement report measuring position n.

Concrete, micro-base station controller can be according to adjacent base station a, b, and the last RSRP measurement report values, positional information and the transmitting power of c, determine that the RSRP equivalence of three base stations encircles.The intersection point of the equivalent ring of described three RSRP is defined as to the last measurement report measuring position n.

Step B7, calculate the current translational speed of described mobile UE according to Δ t, m and n.

Concrete, micro-base station controller can calculate the current translational speed of described mobile UE according to Δ t, m and n.Computing formula is:

v = \frac{{(m_{x} - n_{x})}^{2} + {(m_{y} - n_{y})}^{2}}{Δt}

Wherein, (m _x, m _y) be the coordinate of a m with respect to this base station, (n _x, n _y) be the coordinate of a n with respect to this base station.

Step B8, calculate the current moving direction of described mobile UE according to m and n.

Concrete, micro-base station controller can calculate the current moving direction of described mobile UE according to m and n.

In embodiments of the present invention, according to calculating after the current translational speed of described mobile UE according to Δ t, m and n, above-mentioned method for handover control embodiment also comprises:

Micro-base station controller, after calculating described mobile UE current translational speed and moving direction, upgrades the UE measuring state information table in UE measuring state information memory cell according to the Measuring Time of calculating the last measurement report in gained translational speed, moving direction, position n and measurement report record sheet.

Micro-base station controller, in periodic measurement when report receiving from mobile UE, upgrades the measurement report record sheet of measurement report memory cell according to the Measuring Time of measurement report content and measurement report.

In embodiments of the present invention, micro-base station controller obtains the periodic measurement report from mobile UE, the measurement report record sheet that upgrades in time, and mobile status information when calculating mobile UE and measure in the last time according to the measurement report record sheet after upgrading.With respect to other mobile status method of estimation, translational speed, moving direction and positional information that the embodiment of the present invention obtains are more accurate, further improve the success rate prediction of alternative target community, reduced unnecessary switching beamhouse operation, improved frequency spectrum resource utilization rate.

Referring to Fig. 3, Fig. 3 is the method flow diagram that obtains the current position A of described mobile UE that the embodiment of the present invention provides.In embodiments of the present invention, the step (steps A 2) of obtaining the current position A of described mobile UE can also comprise:

Step C1, inquiry measurement report record sheet, obtain current time and last time measurement report Measuring Time time difference.

Concrete, micro-base station controller can be inquired about measurement report record sheet and obtain measurement report Measuring Time last time, then according to current time calculate current time and last time measurement report Measuring Time time difference.

Step C2, inquiry UE measuring state information table, obtain measuring position, translational speed, the moving direction of the last measurement report.

Concrete, micro-base station controller can be inquired about UE measuring state information table, obtains measuring position, translational speed, the moving direction of the last measurement report.

Step C3, calculate described current location A according to the measuring position of described time difference and the last measurement report, translational speed, moving direction.

Concrete, micro-base station controller can calculate described current location A according to the measuring position of described time difference and the last measurement report, translational speed, moving direction.

In the present embodiment, because the cycle of periodic measurement is very short, therefore being carved into the mobile route of current time in the time that the last measurement report is measured, described UE can be approximately a straight line.Therefore, the directly starting point using the measuring position of the last measurement report as straight line path, then determine the terminal of straight line path according to translational speed, direction and time difference, i.e. the current location A of mobile UE.This position calculating method, can improve the success rate prediction of alternative target community.

Referring to Fig. 4, Fig. 4 be the present embodiment provide obtain the cell ID of alternative target community and the method flow diagram with the adjacency of service Microcell thereof according to described position A and described moving direction.In embodiments of the present invention, obtain the cell ID of alternative target community according to described position A and described moving direction and can also comprise with the step (steps A 3) of the adjacency of service Microcell:

Step D1, inquiry neighboring BS information table, obtain the front cell ID of community, described mobile UE front and the base station spacing ISD with service Microcell thereof according to described position A and described moving direction.

Concrete, micro-base station controller can be inquired about neighboring BS information table, obtains the front cell ID of community, described mobile UE front and the base station spacing ISD with service Microcell thereof according to described position A and described moving direction.

Step D2, front cell ID is defined as to the cell ID of alternative target community.

Concrete, micro-base station controller can be defined as front cell ID the cell ID of alternative target community.

Step D3, inquiry ISD, to the mapping table of adjacency, obtain the adjacency that described ISD is corresponding.

Concrete, micro-base station controller can be inquired about the mapping table of ISD to adjacency, obtains the adjacency that described ISD is corresponding.Wherein, this mapping table be base station spacing (ISD, InterSiteDistance) to the mapping between adjacency, i.e. adjacency type corresponding in store ISD in this mapping table.Adjacency type comprises " close together " and " distant ".

Referring to Fig. 5, Fig. 5 is the method flow diagram that the translational speed according to described adjacency and described mobile UE that provides of the embodiment of the present invention is upgraded the cell ID of the alternative target community of described mobile UE.In embodiments of the present invention, can also comprise according to the step (steps A 4) of the cell ID of the alternative target community of the described mobile UE of translational speed renewal of described adjacency and described mobile UE:

Step e 1, obtain the adjacency of adjacent Microcell that described mobile UE may move into and service Microcell.

Concrete, micro-base station controller can obtain described mobile the UE adjacent Microcell that may move into and the adjacency of serving Microcell according to step D3.

Step e 2, while being distant, the macrocell that covers service Microcell is updated to the alternative target community of described mobile UE in adjacency.

Concrete, micro-base station controller can, in adjacency while being distant, be updated to the macrocell that covers service Microcell the alternative target community of described mobile UE.Wherein, distant referring to, when the presence of intercell interference that scope expansion RE brings cannot make up the load benefit that it brings.

Step e 3, in the time that adjacency is close together, inquiry UE measuring state information memory cell, obtains the current translational speed of described mobile UE.

Concrete, micro-base station controller can be in the time that adjacency be close together, inquiry UE measuring state information memory cell, obtains the current translational speed of described mobile UE.

Step e 4, in the time that described mobile UE is lower-speed state, the macrocell that covers service Microcell is updated to the alternative target community of described mobile UE.

Concrete, micro-base station controller can, in the time that described mobile UE is lower-speed state, be updated to the macrocell that covers service Microcell the alternative target community of described mobile UE

Step e 5, in the time that described mobile UE is fast state, do not upgrade alternative target community.

In embodiments of the present invention, micro-base station controller, by the Microcell application RE technology of front close together, is used as the alternative target community of high-speed mobile UE.With respect in prior art in the time carrying out handover measurement, use reference measurement parameter to compare, the embodiment of the present invention makes contiguous Microcell, front adopt RE technology to increase the probability of mobile UE incision Microcell, front, reducing the SToS of mobile UE in macrocell leads, reduce the frequent switching of mobile UE between macrocell and Microcell, and then reduce network signaling overhead.

For understanding in more detail the embodiment of the present invention, provide concrete application scenarios of the present invention below.

Referring to Fig. 6, Fig. 6 is mobile UE mobile route and cell deployment schematic diagram in this application scene.Wherein, MeNB is macro base station, in macrocell coverage area, random placement 9 Microcell picocell, be respectively Microcell #1～#7.The service Microcell of mobile UE is #1, and the path direction representing along red arrow moves.According to the trend of this route, if Microcell #2 and #1 close together, the switching target small area of mobile UE is likely Microcell #2.If Microcell #2 and #1 are distant, the switching target small area of mobile UE is likely the macrocell that covers #1.

Referring to Fig. 7, Fig. 7 is the schematic diagram of determining the measuring position of nearest twice measurement of mobile UE in this application scene according to measurement report record sheet.Wherein, set up coordinate system take the base station location of serving Microcell #1 as initial point, the coordinate of Microcell #2, #3, #4 is respectively (x2, y2), (x3, y3), (x4, y4).Suppose that the measuring position of mobile UE in the time measuring second from the bottom measurement is m point, the measuring position while measurement in the last time is n point.Describe in detail and how to calculate the coordinate that m is ordered below:

1) inquire about the RSRP value of adjacent Microcell #2, #3, #4 in second from the bottom measurement report, be respectively RSRP1, RSRP2, RSRP3;

2) inquire about the reference signal transmitted power RSTP value of adjacent Microcell #2, #3, #4, be respectively RSTP2, RSTP3, RSTP4;

3), according to formula RSRP2=RSTP2-PL (R1), calculate the radius R 2 of the equivalent ring 1 of RSRP.Wherein, PL(R ₂) be path loss prediction model, can obtain according to 3GPPTR36.814, the path loss prediction model of picocell is PL=140.7+36.7log ₁₀r, the unit of R is Km;

4) in like manner, calculate the radius R of the equivalent ring 2 of RSRP ₃radius R with the equivalent ring 3 of RSRP ₄;

5) set up equation group

\{\begin{matrix} {(x - x_{2})}^{2} + {(y - y_{2})}^{2} = {R_{2}}^{2} \\ {(x - x_{3})}^{2} + {(y - y_{3})}^{2} = {R_{3}}^{2} \\ {(x - x_{4})}^{2} + {(y - y_{4})}^{2} = {R_{4}}^{2} \end{matrix},

Solve m point coordinates (m _x, m _y);

Calculating m point coordinates (m _x, m _y) afterwards, calculate n point coordinates (n according to same method _x, n _y).Inquire about measurement report record sheet, obtain the poor Δ t of being of Measuring Time of nearest twice measurement report, can obtain:

Translational speed:

v = \frac{{(m_{x} - n_{x})}^{2} + {(m_{y} - n_{y})}^{2}}{Δt};

Moving direction:

wherein k is slope;

Referring to Fig. 8, Fig. 8 is the schematic diagram of determining the current location of mobile UE in this application scene according to UE measuring state information table.Wherein, n point is the measuring position that mobile UE measured in the last time.Inquiry UE measuring state information table, obtaining mobile UE is (n in the measuring position of the last time measurement _x, n _y), translational speed equals v, moving direction slope is that k, Measuring Time are t1, and current time is t2.Can obtain the position (a that A is ordered _x, a _y) be

\{\begin{matrix} a_{x} = n_{x} + v \cdot (t_{2} - t_{1}) \cdot \cos (\arctan k) \\ a_{y} = n_{y} + v \cdot (t_{2} - t_{1}) \cdot \sin (\arctan k) \end{matrix} .

Referring to Fig. 9, Fig. 9 is the schematic diagram that upgrades alternative target community in this application scene according to the adjacency of the translational speed of mobile UE and described alternative target community and service Microcell.Wherein, #2 is adjacent Microcell, the front of mobile UE, i.e. current alternative target community.In figure (1), Microcell #2 and #1's is distant, and the macrocell that is community #1 by the service of covering is updated to alternative target community.In figure (2), the close together of Microcell #2 and #1, but the mobile status of UE is low speed, the macrocell that is community #1 by the service of covering is equally updated to alternative target community.In figure (2), the close together of Microcell #2 and #1, but the mobile status of UE is not low speed, does not upgrade described alternative target community.

The embodiment of the present invention also provides corresponding micro-base station controller embodiment, and referring to Figure 10, Figure 10 is the schematic diagram of micro-base station controller of providing of the embodiment of the present invention.

In the present embodiment, micro-base station controller comprises:

Measurement report memory cell 1010, for storing measurement report record sheet, records the periodic measurement report of described mobile UE and the Measuring Time of nearest twice in table, described measurement report comprises measurement ID, serves micro-base station RSRP value, adjacent base station RSRP value.In the time receiving new periodic measurement report, upgrade described measurement report record sheet;

UE measuring state information memory cell 1020, for storing UE measuring state information table, records translational speed, moving direction and the positional information of UE in the time of the last periodic measurement in table.Calculate described translational speed, moving direction and position according to measurement report record sheet.In the time that described measurement report record sheet upgrades, upgrade described UE measuring state information table;

Acquiring unit 1, for obtaining described mobile UE current translational speed and moving direction;

Acquiring unit 2 1040, for obtaining the current position A of described mobile UE;

Acquiring unit 3 1050, determines the cell ID of alternative target community and the adjacency with service Microcell thereof for obtaining according to described position A and described moving direction;

Updating block 1, for upgrading the cell ID of the alternative target community of described mobile UE according to the translational speed of described adjacency and described mobile UE;

Switch beamhouse operation performance element 1070, for according to the cell ID of described alternative target community, switch beamhouse operation with alternative target community, obtain channel resource and the reserved resource information of described alternative target community;

Switch and be ready to complete signaling receiving element 1080, be ready to complete signaling for switching, described switching is ready to complete the reserved resource information of carrying described alternative target community in signaling;

Acquiring unit 4 1090, for obtaining the RE bias of described alternative target community;

ABS request instruction transmitting element 1100, for being while needing to adopt the Microcell of RE technology in described alternative target community, sends ABS request instruction to the macro base station controller of the macrocell that covers service Microcell.Described ABS request instruction comprises that alternative target community is the reserved resource information of described mobile UE;

ABS confirms command reception unit 1110, confirms instruction for receiving ABS;

Acquiring unit 5 1120, the table tennis that is switched to described alternative target community for obtaining is avoided switching condition;

Switching command transmitting element 1130, for sending switching command to described mobile UE.In described switching command, carry cell ID and the described RE bias of described alternative target community;

Switch indication receiving element 1140, for receiving the switching indication from described mobile UE;

Switch performance element 1150, when identical for the cell ID in described Target cell and described alternative target community, control described mobile UE and be switched to described alternative target community; When cell ID in described Target cell and described alternative target community is different, controls described mobile UE and be switched to described Target cell, discharge the channel reservation resource of described alternative target community;

Micro-base station controller embodiment that the present embodiment provides can be applied in aforementioned mobile robustness optimization method.

Referring to Figure 11, Figure 11 is the schematic diagram of UE measuring state information memory cell in micro-base station controller of providing of the embodiment of the present invention.In embodiments of the present invention, UE measuring state information memory cell comprises:

Acquisition module I1021, for inquiring about measurement report memory cell, obtains the poor Δ t of Measuring Time of nearest twice measurement report;

Enquiry module II1022, for inquiring about neighboring BS information table, obtains any two adjacent base station a, the positional information of b and transmitting power;

Acquisition module III1023, for inquiring about measurement report memory cell, obtains measurement report second from the bottom time;

Determination module IV1024, for determining second from the bottom measurement report measuring position m.According to adjacent base station a, RSRP report value, positional information and the transmitting power of b and the micro-base station of service, determine that the RSRP equivalence of three base stations encircles.The intersection point of the equivalent ring of described three RSRP is defined as to described measuring position m;

Acquisition module V1025, for inquiring about measurement report memory cell, obtains the last measurement report;

Determination module VI1026, for determining the last measurement report measuring position n.According to adjacent base station a, RSRP report value, positional information and the transmitting power of b and the micro-base station of service, determine that the RSRP equivalence of three base stations encircles.The intersection point of the equivalent ring of described three RSRP is defined as to described measuring position n;

Computing module VII1027, for calculating the current translational speed of described mobile UE according to Δ t, m and n;

Computing module VIII1028, for calculating the current moving direction of described mobile UE according to m and n;

Referring to Figure 12, Figure 12 is the schematic diagram of acquiring unit two in micro-base station controller of providing of the embodiment of the present invention.In embodiments of the present invention, acquiring unit two comprises:

Acquisition module I1041, for inquiring about measurement report memory cell, obtain current time and last time measurement report Measuring Time time difference;

Enquiry module II1042, for inquiring about UE measuring state information memory cell, obtains measuring position, translational speed, the moving direction of the last measurement report;

Computing module III1043, measuring position, translational speed, the moving direction of the last measurement report inquiring for the described time span obtained according to acquisition module I and enquiry module II calculate described current location A;

Referring to Figure 13, Figure 13 is the schematic diagram of acquiring unit three in micro-base station controller of providing of the embodiment of the present invention.In embodiments of the present invention, acquiring unit three comprises:

Acquisition module I1051, for inquiring about neighboring BS information table, obtain the front cell ID of community, described mobile UE front and with service Microcell base station spacing ISD;

Determination module II1052, for being defined as front cell ID the cell ID of alternative target community;

Acquisition module III1053, for inquiring about ISD-adjacency mapping table, obtains the corresponding adjacency of described ISD;

Referring to Figure 14, Figure 14 is the schematic diagram of updating block one in micro-base station controller of providing of the embodiment of the present invention.In embodiments of the present invention, updating block one comprises:

Acquisition module I1061, for inquiring about the result of acquiring unit three, obtains described mobile the UE adjacent Microcell that may move into and the adjacency of serving Microcell;

Judge module II1062, for judging whether described adjacency is distant.If so, forward update module III to.Otherwise, forward acquisition module IV to;

Update module III1063, for being updated to described alternative target community by the macrocell that covers service Microcell;

Acquisition module IV1064, for inquiring about UE measuring state information memory cell, obtains the current translational speed of described mobile UE;

Whether judge module V1065 is low speed for the present speed that judges described mobile UE.If so, forward update module III. to otherwise, do not upgrade;

Referring to Figure 15, Figure 15 is the schematic diagram of the macro base station controller that provides of the embodiment of the present invention.In embodiments of the present invention, macro base station controller comprises:

ABS request instruction receiving element 2010, for receiving ABS request instruction;

ABS dispensing unit 2020, for configuring corresponding A BS subframe according to described ABS request instruction;

ABS confirms instruction sending unit 2030, confirms instruction for sending ABS;

The macro base station controller embodiment that the embodiment of the present invention provides can be applied in aforementioned mobile robustness optimization method.

Referring to Figure 16, Figure 16 is the schematic diagram of the mobile UE subscriber equipment that provides of the embodiment of the present invention.In embodiments of the present invention, mobile UE subscriber equipment comprises:

Switching command receiving element 3010, for receiving switching command, carries the cell ID of described alternative target community, described table tennis is avoided switching condition and described RE bias in described switching command;

Switch indication transmitting element 3020, in the time that described table tennis avoids switching condition to meet, send and switch indication to micro-base station controller, in described switching indication, carry the cell ID of Target cell;

The mobile UE subscriber equipment embodiment that the embodiment of the present invention provides can be applied in aforementioned mobile robustness optimization method.

Finally explanation is, above preferred embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from the claims in the present invention book limited range.

Claims

1. the mobile robustness optimization method based on mobile status information and adjacent area adjacency, is characterized in that: comprise the following steps:

Upgrade the cell ID of the alternative target community of described mobile UE according to the translational speed of described adjacency and described mobile UE;

According to the cell ID of described alternative target community, switch beamhouse operation with alternative target community, obtain channel resource and the reserved resource information of described alternative target community;

Obtain the RE bias of described alternative target community;

2. the mobile robustness optimization method based on mobile status information and adjacent area adjacency according to claim 1, is characterized in that: obtain the current translational speed of described mobile UE and the process of moving direction and specifically comprise:

Inquiry measurement report memory cell, obtains the last measurement report;

3. the mobile robustness optimization method based on mobile status information and adjacent area adjacency according to claim 1, is characterized in that: obtain the current position A of described mobile UE and comprise the following steps:

Obtain the cell ID of alternative target community and the adjacency with service Microcell thereof according to position A and described moving direction,

Specifically comprise the following steps:

Front cell ID is defined as to the cell ID of alternative target community;

4. the mobile robustness optimization method based on mobile status information and adjacent area adjacency according to claim 1, it is characterized in that: the described translational speed according to adjacency and mobile UE is upgraded the cell ID of the alternative target community of described mobile UE, specifically comprises:

5. a micro-base station controller, is characterized in that: comprising:

ABS confirms command reception unit: confirm instruction for receiving ABS;

6. the micro-base station controller of one according to claim 5, is characterized in that: described UE measuring state information memory cell comprises:

7. the micro-base station controller of one according to claim 5, is characterized in that:

Described acquiring unit two comprises:

Described acquiring unit three comprises:

8. the micro-base station controller of one according to claim 5, it is characterized in that: described updating block one comprises: acquisition module I: for inquiring about the result of acquiring unit three, obtain described mobile the UE adjacent Microcell that may move into and the adjacency of serving Microcell;

9. a macro base station controller, is characterized in that: comprising: for receiving the ABS request instruction receiving element of ABS request instruction; For configure the ABS dispensing unit of corresponding A BS subframe according to described ABS request instruction; The ABS that confirms instruction for sending ABS confirms instruction sending unit.

10. a mobile UE subscriber equipment, is characterized in that: comprising: switching command receiving element: for receiving switching command, carry the cell ID of described alternative target community in described switching command, described table tennis is avoided switching condition and described RE bias; Switch indication transmitting element: in the time that described table tennis avoids switching condition to meet, send and switch indication to micro-base station controller, in described switching indication, carry the cell ID of Target cell.