CN103796256B - Based on mobile status information and the mobile robustness optimization method and device of adjacent area adjacency - Google Patents

Abstract

The invention discloses a kind of based on mobile status information and the mobile robustness optimization method and device of adjacent area adjacency, belong to wireless communication technology field.In the method, micro-base station controller estimates the real-time mobile status information of mobile UE according to the periodic measurement report obtained from mobile UE；Then, control is switched over to mobile UE according to adjacent area deployed environment, it is to avoid mobile frequent switchings of the UE between macrocell and Microcell；Finally, in handoff procedure, the switching to alternative target cell is prepared operation and is shifted to an earlier date, and the switching condition for avoiding pingpang handoff is calculated according to the translational speed of UE is moved with the PDCCH points of interruption of service Microcell.Relative to prior art, the present invention improves the success rate prediction of alternative target cell, improves frequency spectrum resource utilization rate；Frequent switchings of the mobile UE between macrocell and Microcell is reduced, and then reduces network signaling overhead；The handover success rate of mobile UE while SToS rates are not improved, can be improved, and then improves user experience.

Description

Mobile robustness optimization method based on mobile status information and adjacent area adjacency and Device

Technical field

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

Background technology

With the widespread adoption of LTE technology, requirement more and more higher of the user to data traffic, traditional macro base station run into The bottleneck of networking and covering, LTE-A isomery small cell networks arise at the historic moment.Low power nodes are laid by isomery small cell network To absorb the hot spot region of macro network or cover its blind spot region in macro base station coverage area, so as to be formed with covering not Heterogeneous system with node type.Typical low power nodes include micro-base station (Pico), Home eNodeB (Femto) and relaying base Stand (Relay) etc..Can be obtained according to the simulation result in 3GPP TR 36.814, the overall performance of handoffs (HOF/ under heterogeneous network Ping-pong/SToS) far short of what is expected than traditional pure macrocellular network, when especially moving UE and quickly moving.Wherein, the switching of P2M Mortality HOF is maximum, mainly State 2HOF, and its basic reason is that to move UE translational speeds too fast, so that switching command Or the PDCCH uplink authorization informations from service Pico cell that mobile UE is received are met with due to the strong interference of macrocellular To destruction.

TTT (Time to Trigger) timer is to trigger the duration that measurement report needs to meet time criterion, when The entrance or exit criteria for meeting A3 events could trigger corresponding measurement and report after reaching this time.Under High-speed Circumstance, by In UE translational speeds quickly, variations are fast, if TTT settings are larger, measure channel quality and the TTT moment of cell Channel quality afterwards is difficult to mate, and is easily caused handoff failure.

In prior art, a kind of TTT based on velocity estimation MSE is proposed for the handoff failure caused by State 2HOF Zoom mechanism.The method for different mobile status mobile UE using different durations TTT timers come control switch speed. The method can accelerate macrocell to the switching of Microcell, improve the handover success rate under heterogeneous network.Have the disadvantage to improve low speed field Pingpang handoff rate under scape and handoff failure under High-speed Circumstance cannot be avoided.Therefore, the method is to the mobile robust under heterogeneous network The optimization function of property is limited.

3GPP RAN2 propose a kind of switching control for preventing high-speed mobile UE equipment from cutting Pico cell for problem above Method processed.Lost by avoiding switching of high-speed mobile UE to the switching of Pico cell to reduce occurring between macrocell and Microcell Lose rate.The shortcoming of the method is to need switch over or even set out RRC connection reconstructions mechanism or T310 in a hurry in mobile UE The service disruption rate of mobile UE in advance during interrupt mechanism, will certainly be increased.In addition, when mobile UE continuously pass through multiple different During Picocell, as handover process is all prohibited, service disruption would is that fatal.

In sum, the mobile robustness for needing a kind of Microcell suitable for intensive isomery small cell network outwards to switch Enhancement Method so as to high-speed mobile UE can be allowed to switch into picocell, reduces the service disruption rate of mobile UE, improves communication Service quality.Meanwhile, when high-speed mobile UE is outwards switched by Microcell, reduce switching while pingpang handoff rate is not improved Mortality HOF.

In addition, as user is increasing to data traffic demand, the quantity of the Microcell that disposes in macrocell will be more next More.Around the service Microcell of mobile UE during some Microcells of dense deployment, high-speed mobile UE is likely to occur micro- Cell arrives the frequent switching of Microcell again to macrocell.These frequent switchings can not only bring substantial amounts of network signalling load, and And also only a small amount of load impedance can be produced in the movement UE access macrocells of short duration time.Therefore, mobile UE is carried out under heterogeneous network When cell is selected, need a kind of method for handover control to carry out the frequent switching number of times so that reducing between macrocell and Microcell, make The load impedance that UE must be moved is maximized.

Content of the invention

In view of this, it is an object of the invention to provide a kind of estimated based on user mobile information, adjacent area deployed environment and Table tennis avoids switching condition from switching over the mobile robustness optimization method and device of control.

For reaching above-mentioned purpose, the present invention provides following technical scheme：

A kind of based on mobile status information and the mobile robustness optimization method of adjacent area adjacency, comprise the following steps：

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

According to position A and moving direction determine alternative target cell cell ID and its with service Microcell neighbouring Degree；

Updated according to the adjacency and the translational speed of the mobile UE the mobile UE alternative target cell little Area identifies；According to the cell ID of the alternative target cell, preparation operation is switched over alternative target cell, obtain described The channel resource of alternative target cell and reserved resource information；

Obtain the RE biases of the alternative target cell；

When the alternative target cell is to need the Microcell using RE technology, to the macrocell for covering service Microcell Macro base station controller send ABS request instructions, and receive ABS confirm instruction, in the request instruction carry alternative target Cell is the reserved resource informations of the mobile UE；

Macro base station controller receives the ABS request instructions from service Microcell, carries needs and be configured in the instruction The band information of ABS；

Macro base station controller configures corresponding A BS subframe according to the ABS request instructions；

When the configuration of ABS subframes is completed, macro base station controller sends ABS to micro-base station controller and confirms instruction；

The table tennis that current translational speed acquisition according to the mobile UE is switched to the alternative target cell avoids switching Condition；

Switching command is sent to the mobile UE, the cell mark of the alternative target cell in the switching command, is carried Know, the table tennis avoids switching condition and the RE biases；

The mobile UE receives the switching command from service Microcell, carries the alternative target in the switching command The cell ID of cell, the table tennis avoid switching condition and the RE biases；

When the table tennis avoids switching condition from meeting, the mobile UE sends switching to micro-base station controller and indicates, cuts Change the cell ID that Target cell is carried in indicating；

The switching instruction from the UE is received, the cell ID of Target cell in the switching indication signaling, is carried；

When the Target cell is identical with the cell ID of the alternative target cell, controls the mobile UE and be switched to The alternative target cell；

When the Target cell is different with the cell ID of the alternative target cell, controls the mobile UE and be switched to The Target cell, discharges the channel reservation resource of the alternative target cell.

Further, the process for obtaining the current translational speeds of the mobile UE and moving direction is specifically included：

Inquiry measurement report record sheet, obtains recently the time of measuring difference Δ t of measurement report twice；

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

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

According to adjacent base station a, second from the bottom RSRP measurement report values, positional information and the transmission power of b, c, three are determined The intersection point of three RSRP equivalence rings is defined as second from the bottom measurement report measurement position m by the RSRP equivalence rings of base station；

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

According to adjacent base station a, the last RSRP measurement report values of b, c, positional information and transmission power, three bases are determined The intersection point of three RSRP equivalence rings is defined as the last measurement report measurement position n by the RSRP equivalence rings that stands；

The current translational speeds of the mobile UE are calculated according to Δ t, m and n；

The current moving directions of the mobile UE are calculated according to m and n.

Further, obtain the current position A of the mobile UE to comprise the following steps：

Inquiry measurement report record sheet, obtains the time difference at current time and last time measurement report time of measuring；

Inquiry UE measuring state information tables, the measurement position of the last measurement report of acquisition, translational speed, movement side To；

Measurement position, translational speed according to the time difference and the last measurement report, moving direction are calculated Current location A；

The cell ID of alternative target cell and its neighbour with service Microcell are obtained according to position A and the moving direction Recency, specifically includes following steps：

Inquiry neighboring BS information table, obtains in front of the mobile UE before cell according to the position A and the moving direction Square cell ID and its base distance between sites ISD with service Microcell；

The cell ID that front cell ID is defined as alternative target cell；

Mapping tables of the inquiry ISD to adjacency, obtains the corresponding adjacencies of the ISD.

Further, the translational speed according to adjacency and mobile UE updates the alternative target cell of the mobile UE Cell ID, specifically includes：

Obtain the mobile the UE adjacent Microcell that may be moved into and the adjacency for servicing Microcell；

When adjacency is distant, the preparation mesh that the macrocell that covering services Microcell is updated to the mobile UE Mark cell；

When adjacency is closer to the distance, UE measuring state information memory cells are inquired about, obtain the mobile UE current Translational speed；

When the mobile UE is lower-speed state, the macrocell for covering service Microcell is updated to the preparation mesh for moving UE Mark cell；

When the mobile UE is fast state, alternative target cell is not updated.

Present invention also offers a kind of micro-base station controller, including：

Measurement report memory cell：For storing measurement report record sheet, described mobile UE twice recently in table, is recorded Periodic measurement report and time of measuring, the measurement report include measuring ID, service micro-base station RSRP value, adjacent base station RSRP values, when new periodic measurement report is received, update the measurement report record sheet；

UE measuring state information memory cells：For storing UE measuring state information tables, in table, record UE is in the last time Translational speed, moving direction and positional information during periodic measurement, is calculated the movement according to measurement report record sheet Speed, moving direction and position, when the measurement report record sheet updates, update the UE measuring states information table；

Acquiring unit one：For obtaining the current translational speeds of the mobile UE and moving direction；

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

Acquiring unit three：For obtaining the cell for determining alternative target cell according to the position A and the moving direction Mark and its adjacency with service Microcell；

Updating block one：For updating the pre- of the mobile UE according to the adjacency with the translational speed of the mobile UE The cell ID of standby Target cell；

Switching prepares operation execution unit：For the cell ID according to the alternative target cell, little with alternative target Area switches over preparation operation, obtains the channel resource of the alternative target cell and reserved resource information；

Switching is ready to complete signaling receiving unit：Signaling is ready to complete for switching, the switching is ready to complete in signaling Carry the reserved resource information of the alternative target cell；

Acquiring unit four：For obtaining the RE biases of the alternative target cell；

ABS request instruction transmitting elements：For when the alternative target cell is to need the Microcell using RE technology, Macro base station controller to the macrocell for covering service Microcell sends ABS request instructions, and the ABS request instructions include in advance Standby Target cell is the reserved resource informations of the mobile UE；

ABS confirms instruction reception unit：Instruction is confirmed for receiving ABS；

Acquiring unit five：Switching condition is avoided for obtaining the table tennis for being switched to the alternative target cell；

Switching command transmitting element：For sending switching command to the mobile UE, carry in the switching command described The cell ID of alternative target cell and the RE biases；

Switching indicates receiving unit：Switching for receiving from the mobile UE is indicated；

Switching performance element：For when the Target cell is identical with the cell ID of the alternative target cell, controlling Make the mobile UE and be switched to the alternative target cell；In the Target cell and the cell ID of the alternative target cell When different, control the mobile UE and be switched to the Target cell, discharge the channel reservation resource of the alternative target cell.

Further, the UE measuring states information memory cell includes：

Acquisition module I：For inquiring about measurement report memory cell, the time of measuring difference Δ of measurement report twice is obtained recently t；

Enquiry module II：For inquiring about neighboring BS information table, any three adjacent base stations a, the positional information of b, c and transmitting is obtained Power；

Acquisition module III：For inquiring about measurement report memory cell, second from the bottom measurement report is obtained；

Determining module IV：For determining second from the bottom measurement report measurement position m, according to adjacent base station a, the RSRP of b, c Report value, positional information and transmission power, determine the RSRP equivalence rings of three base stations, by the intersection point of three RSRP equivalence rings It is defined as measurement position m；

Acquisition module V：For inquiring about measurement report memory cell, the last measurement report is obtained；

Determining module VI：For determining the last measurement report measurement position n, according to adjacent base station a, the RSRP of b, c is reported Announcement value, positional information and transmission power, determine the RSRP equivalence rings of three base stations, will be true for the intersection point of three RSRP equivalence rings It is set to measurement position n；

Computing module VII：The current translational speeds of the mobile UE are calculated according to Δ t, m and n；

Computing module VIII：The current moving directions of the mobile UE are calculated according to m and n.

Further, the acquiring unit two includes：

Acquisition module I：For inquiring about measurement report memory cell, current time and last time measurement report time of measuring is obtained Time difference；

Enquiry module II：For inquiring about UE measuring state information memory cells, the measurement of the last measurement report is obtained Position, translational speed, moving direction；

Computing module III：The time span and enquiry module II for being obtained according to acquisition module I is inquired most Measurement position, translational speed in nearly one-shot measurement report, moving direction are calculated the current location A；

The acquiring unit three includes：

Acquisition module I：For inquiring about neighboring BS information table, obtain in front of the mobile UE front cell ID of cell and its With the base distance between sites ISD with service Microcell；

Determining module II：For front cell ID to be defined as the cell ID of alternative target cell；

Acquisition module III：For inquiring about ISD- adjacency mapping tables, the corresponding adjacencies of the ISD are obtained.

Further, the updating block one includes：

Acquisition module I：For inquiring about the result of acquiring unit three, the adjacent Microcell that the mobile UE may be moved into is obtained Adjacency with service Microcell；

Judge module II：For judging whether the adjacency is distant, update module III is gone to then if so, no Then, acquisition module IV is gone to；

Update module III：For the macrocell for covering service Microcell is updated to the alternative target cell；

Acquisition module IV：For inquiring about UE measuring state information memory cells, the current mobile speed of the mobile UE is obtained Degree；

Judge module V：For judging whether the present speed of the mobile UE is low speed, if so, then goes to update module III, otherwise, does not update.

Present invention also offers a kind of macro base station controller, including：For receiving the ABS request instructions of ABS request instructions Receiving unit；For configuring the ABS dispensing units of corresponding A BS subframe according to the ABS request instructions；For sending ABS confirmations The ABS of instruction confirms instruction sending unit.

Present invention also offers a kind of mobile UE user equipmenies, including：Switching command receiving unit：Refer to for receiving switching Order, carries the cell ID of the alternative target cell, the table tennis and avoids switching condition and the RE in the switching command Bias；Switching indicates transmitting element：For when the table tennis avoids switching condition from meeting, sending to micro-base station controller and cutting Instruction is changed, the switching carries the cell ID of Target cell in indicating.

The beneficial effects of the present invention is：Relative to prior art, technical solutions according to the invention improve preparation mesh The success rate prediction of mark cell, improves frequency spectrum resource utilization rate；Reduce frequencies of the mobile UE between macrocell and Microcell Numerous switching, and then reduce network signaling overhead；While SToS rates are not improved, the handover success rate of mobile UE can be improved, And then improve user experience.

Description of the drawings

In order that the purpose of the present invention, technical scheme and beneficial effect are clearer, the present invention provides drawings described below and carries out Explanation：

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

Fig. 2 is the method flow diagram for obtaining the current translational speeds of mobile UE and moving direction that the present invention is provided；

Fig. 3 is the method flow diagram for obtaining the current position A of mobile UE that the present invention is provided；

Fig. 4 is the cell mark for obtaining alternative target cell according to the position A and the moving direction that the present invention is provided Know and its method flow diagram with the adjacency of service Microcell；

Fig. 5 be the present invention provide the mobile UE is updated according to the adjacency and the translational speed of the mobile UE The method flow diagram of the cell ID of alternative target cell；

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

Fig. 7 is the measurement position for measuring twice recently for determining mobile UE in this application scene according to measurement report record sheet The schematic diagram that puts；

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

Fig. 9 is translational speed and the alternative target cell and the service Microcell in this application scene according to mobile UE Adjacency updates the schematic diagram of alternative target cell；

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

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

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

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

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

Figure 15 is the schematic diagram of macro base station controller provided in an embodiment of the present invention；

Figure 16 is the schematic diagram of mobile UE user equipmenies provided in an embodiment of the present invention.

Specific 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 mobile robustness optimization method provided in an embodiment of the present invention.In the present embodiment In, the mobile robustness optimization process that micro-base station controller is executed can specifically include：

The current translational speed of step A1, the acquisition mobile UE and moving direction.

Specifically, micro-base station controller can be inquired about UE measuring states information table and obtain the current mobile speed of the mobile UE Degree and moving direction.In present example, the change of mobile mobile status of the UE within the measurement report cycle is ignored, root According to the measurement position and temporal information of measurement report are calculated the current translational speeds of mobile UE and moving direction twice recently.

The current position A of step A2, the acquisition mobile UE.

Specifically, micro-base station controller can inquire about UE measuring state information tables, obtain the last measurement report moment Measurement position, translational speed, moving direction.Calculate further according to time of measuring difference of the current time with the last measurement report Obtain the current position A of the mobile UE.

Step A3, the cell ID for determining alternative target cell according to the position A and the moving direction and its with clothes The adjacency of business Microcell.

Specifically, micro-base station controller can determine preparation according to the current location A and the current moving direction The cell ID of Target cell and its adjacency with service Microcell.In the embodiment of the present invention, will be by the position A and described The cell ID of the front cell of the described mobile UE that moving direction determines is defined as the cell ID of alternative target cell.Again Person, according to neighboring BS information table, obtains the base distance between sites ISD of the front cell and service Microcell, and ISD is to adjacency for inquiry Mapping table, obtain the corresponding adjacency of the ISD.

Step A4, the alternative target for updating the mobile UE according to the adjacency and the translational speed of the mobile UE are little The cell ID in area.

Specifically, micro-base station controller can judge whether the adjacency is distance after the adjacency is obtained Farther out, the macrocell for covering service Microcell is updated to alternative target cell then if so,.If it is not, then obtaining the mobile UE Translational speed.Judge whether the translational speed is low speed, if so, then the macrocell for covering service Microcell is updated to pre- Standby Target cell.If it is not, then not updating the alternative target cell.

Step A5, the cell ID according to the alternative target cell, switch over preparation operation with alternative target cell, Obtain the channel resource of the alternative target cell and reserved resource information.

Specifically, micro-base station controller can be according to the cell ID of the alternative target cell, with alternative target cell Preparation operation is switched over, the channel resource of alternative target cell is obtained, is set up wireless channel, completed switching and prepare operation.Most The resource information of the channel reservation is obtained afterwards；

Step A6, the RE biases for obtaining the alternative target cell.

Specifically, micro-base station controller can inquire about RE bias tables, according to the cell type of the alternative target cell And its corresponding RE biases are obtained with the base distance between sites (ISD, Inter Site Distance) of service Microcell.If pre- Standby Target cell is macrocell, then need not adopt RE technology, i.e. RE biases=0dB.If alternative target cell is that front is micro- Cell, when front Microcell and the small area overlapping of service or tangent when, RE biases=0dB is set, when front Microcell and clothes When being engaged in Microcell at a distance, then non-zero RE biases are determined according to ISD.

The example arrangement of wherein RE biases table is as shown in table 1：

Table 1.RE bias tables

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

Step A7, when the alternative target cell is the Microcell that need to adopt RE technology, to covering service Microcell The macro base station controller of macrocell sends ABS request instructions, and receives ABS confirmation instructions.Carried in the request instruction is pre- Standby Target cell is the reserved resource informations of the mobile UE.

Specifically, micro-base station controller can be when alternative target cell be the Microcell that need to adopt RE technology, to covering The macro base station controller of the macrocell of service Microcell sends ABS request instructions, and receives ABS confirmation instructions.The request refers to The alternative target cell carried in order is the reserved resource informations of the mobile UE, in order to macro base station controller according to described pre- Stay resource information that the corresponding frequency band of macrocell is configured to ABS subframes.

Step A8, macro base station controller receive the ABS request instructions from service Microcell, and carrying in the instruction needs It is configured to the band information of ABS.

Specifically, macro base station controller receives the ABS request instructions of the micro-base station controller from service Microcell, institute State and in instruction, carry the band information for needing to be configured to ABS.

Step A9, macro base station controller configure corresponding A BS subframe according to the ABS request instructions.

Specifically, macro base station controller can be described according to the alternative target cell carried in the ABS request instructions The corresponding frequency band of macrocell is configured to ABS subframes by the reserved resource informations of mobile UE.

Step A10, when the configuration of ABS subframes is completed, macro base station controller to micro-base station controller send ABS confirm refer to Order.

Specifically, macro base station controller when the configuration of ABS subframes is completed, send out by the micro-base station controller to service Microcell ABS is sent to confirm instruction.

Step A11, the table tennis for being switched to the alternative target cell according to the current translational speed acquisition of the mobile UE Avoid switching condition.

Specifically, the micro-base station controller of service Microcell can be inquired about according to the current translational speed of the mobile UE Table tennis avoids handoff parameter table, acquisition from being switched to the table tennis of the alternative target cell and avoid switching condition.Present example draws With the simulation result of the hot-zone scene in 3GPPTR36.839, switching condition of the pingpang handoff rate less than 10% is defined as rattling Avoid switching condition.

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

The table tennis of table 2. avoids handoff parameter table

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

Step A12, switching command is sent to the mobile UE, carry the alternative target cell in the switching command Cell ID, the table tennis avoid switching condition and the RE biases.

Specifically, micro-base station controller can send switching command to the mobile UE, carry institute in the switching command State the cell ID of alternative target cell, the table tennis and avoid switching condition and the RE biases.In order to the mobile UE Handoff parameter according to the cell ID of the alternative target cell of the carrying in switching command to the alternative target cell Reconfigured；

Step A13, the mobile UE receive the switching command from service Microcell, carry described in the switching command The cell ID of alternative target cell, the table tennis avoid switching condition and the RE biases.

Specifically, the mobile UE can receive the switching command from service Microcell, carry in the switching command The cell ID of the alternative target cell, the table tennis avoid switching condition and the RE biases.And according to the preparation The cell ID of Target cell, the table tennis avoid the switching of switching condition and the RE biases to the alternative target cell Parameter is reconfigured；

Step A14, described table tennis avoid switching condition from meeting when, the mobile UE to micro-base station controller send switching Indicate, the switching carries the cell ID of Target cell in indicating.

Specifically, the mobile UE can be when the table tennis avoids switching condition, and the mobile UE is to micro-base station control Device sends switching and indicates, the switching carries the cell ID of Target cell in indicating.In order to micro-base station controller according to institute The cell ID for stating Target cell switches over control operation；

Step A15, reception carry the cell of Target cell from the switching instruction of the UE in the switching indication signaling Mark.

Specifically, base station controller can receive the switching instruction from the mobile UE, in the switching indication signaling Carry the cell ID of Target cell.

Step A16, when the Target cell is identical with the cell ID of the alternative target cell, control the movement UE is switched to the alternative target cell.

Specifically, base station controller can be identical with the cell ID of the alternative target cell in the Target cell When, control the mobile UE and be switched to the alternative target cell.

Step A17, when the Target cell is different with the cell ID of the alternative target cell, control the movement UE is switched to the Target cell, discharges the channel reservation resource of the alternative target cell.

Specifically, base station controller can be different with the cell ID of the alternative target cell in the Target cell When, control the mobile UE and be switched to the Target cell, discharge the channel reservation resource of the alternative target cell.

In addition, in embodiments of the present invention, after execution of step A6, if the RE biases for obtaining are nonzero value, i.e., The alternative target cell needs using RE technology, then to continue executing with step A7～A17.If the RE biases for obtaining are zero, I.e. described alternative target cell need not adopt RE technology, then leap to step A11, continue executing with step A11～A17.

In embodiments of the present invention, micro-base station controller is according to the adjacent Microcell in the front of mobile UE and service Microcell Adjacency come judge whether to control to move UE be cut directly into the adjacent Microcell in front come avoid moving UE macrocell with micro- Frequent switching between cell.Relative to when measurement is switched over, being compared using reference measurement parameter in prior art, this Bright embodiment makes neighbouring front Microcell increase the probability of mobile UE incisions front Microcell using RE technology, reduces shifting SToS rates of the dynamic UE in macrocell, alleviates frequent switchings of the mobile UE between macrocell and Microcell, and then reduces net Network signaling consumption.

Meanwhile, in embodiments of the present invention, the switching to alternative target cell is prepared operation and is shifted to an earlier date by micro-base station controller, And the switching condition for avoiding pingpang handoff is calculated according to the translational speed of UE is moved with the PDCCH points of interruption of service Microcell. Compare relative to TTT (Time To Trigger) the timer zoom mechanism in prior art based on moving speed estimation, this Bright embodiment is more reasonable in switching condition decision-making, while SToS rates are not improved, improves the handover success rate of mobile UE, Improve user experience.

Referring to Fig. 2, Fig. 2 is the current translational speeds of the acquisition provided in an embodiment of the present invention mobile UE and moving direction Method flow diagram.In embodiments of the present invention, micro-base station controller obtains the current translational speeds of the mobile UE and movement The step of direction (step A1), can include：

Step B1, inquiry measurement report record sheet, obtain recently the time of measuring difference Δ t of measurement report twice.

Specifically, micro-base station controller can inquire about measurement report record sheet, obtain recently the measurement of measurement report twice Time difference Δ t.Wherein, the measurement report record sheet is the information table in micro-base station in measurement report memory cell, records in table The periodic measurement reports of described mobile UE twice and time of measuring recently, the measurement report include measuring ID, service Micro-base station RSRP value, adjacent base station RSRP value.When new periodic measurement report is received, the measurement report record is updated Table.

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

Specifically, micro-base station controller can inquire about neighboring BS information table, obtain any three adjacent base stations a, the position letter of b, c Breath and transmission power.Wherein, any three adjacent base stations a, the positional information of b, c can be the positional information relative to this base station, Positional information under the coordinate system that is set up with the position of this base station as (0,0) origin of coordinates.

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

Specifically, micro-base station controller can inquire about measurement report record sheet, obtain second from the bottom measurement report.Its In, the second from the bottom measurement report refers to be calculated from current time to the historical juncture, the inverse that the mobile UE is reported the Double measurement is reported.Due at most only recording measurement report twice in measurement report record sheet, therefore this second from the bottom time measures report The time of measuring that accuses in measurement report record sheet is earliest.

Step B4, according to adjacent base station a, second from the bottom RSRP measurement report values, positional information and the transmission power of b, c, Determine the RSRP equivalence rings of three base stations.The intersection point of three RSRP equivalence rings is defined as second from the bottom measurement report to survey Amount position m.

Specifically, micro-base station controller can be according to adjacent base station a, second from the bottom RSRP measurement report values, the position of b, c Information and transmission power, determine the RSRP equivalence rings of three base stations.The intersection point of three RSRP equivalence rings is defined as inverse Second measurement report measurement position m.Wherein, RSRP equivalence ring be by centered on base station to extraradial lossless transmitting work( Rate model, is superimposed what path loss prediction model was obtained.Under the model, the choropleth for measuring RSRP in cell is an annulus. The center of circle of annulus is the position of corresponding the surveyed base station of measured value, and radius is the distance of measurement point i.e. UE positions and base station.Each Individual RSRP report values are corresponding to a RSRP equivalence ring.Therefore, the RSRP values of three base stations for being measured using measurement point are determined Three corresponding RSRP equivalences rings 1,2,3, the intersection point of annulus 1,2,3 can be defined as the position of RSRP measurement points, i.e. UE.

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

Specifically, micro-base station controller can inquire about measurement report record sheet, obtain the last measurement report.This is nearest The time of measuring that one-shot measurement is reported in measurement report record sheet is the latest.

Step B6, according to adjacent base station a, the last RSRP measurement report values of b, c, positional information and transmission power, really The RSRP equivalence rings of fixed three base stations.The intersection point of three RSRP equivalence rings is defined as the last measurement report measurement position Put n.

Specifically, micro-base station controller can be according to adjacent base station a, the last RSRP measurement report values of b, c, position letter Breath and transmission power, determine the RSRP equivalence rings of three base stations.The intersection point of three RSRP equivalence rings is defined as nearest one Secondary measurement report measurement position n.

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

Specifically, micro-base station controller can calculate the current translational speeds of the mobile UE according to Δ t, m and n.Calculate Formula is：

Wherein, (m_x,m_y) it is coordinates of the point m relative to this base station, (n_x,n_y) it is coordinates of the point n relative to this base station.

Step B8, the current moving directions of the mobile UE are calculated according to m and n.

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

In embodiments of the present invention, after according to the current translational speeds of the mobile UE are calculated according to Δ t, m and n, on Stating method for handover control embodiment also includes：

Micro-base station controller after the current translational speeds of the mobile UE and moving direction is calculated, according to calculating In gained translational speed, moving direction, position n and measurement report record sheet, the time of measuring of the last measurement report updates UE measuring state information tables in UE measuring state information memory cells.

Micro-base station controller when receiving from the periodic measurement report of mobile UE, according to measurement report content and survey The time of measuring of amount report updates the measurement report record sheet of measurement report memory cell.

In embodiments of the present invention, micro-base station controller obtains the periodic measurement report from mobile UE, upgrades in time Measurement report record sheet, and according to renewal after measurement report record sheet be calculated shiftings of the mobile UE in the last measurement Dynamic status information.Relative to other mobile status methods of estimation, translational speed that the embodiment of the present invention is obtained, moving direction and Positional information is more accurate, further increases the success rate prediction of alternative target cell, reduces unnecessary switching and prepares Operation, improves frequency spectrum resource utilization rate.

Referring to Fig. 3, Fig. 3 is the method flow diagram for obtaining the current position A of the mobile UE provided in an embodiment of the present invention. In embodiments of the present invention, the step of obtaining the mobile UE current position A (step A2) can also include：

Step C1, inquiry measurement report record sheet, obtain the time difference at current time and last time measurement report time of measuring.

Specifically, micro-base station controller can be inquired about measurement report record sheet and obtain last time measurement report time of measuring, then The time difference at current time and last time measurement report time of measuring is calculated according to current time.

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

Specifically, micro-base station controller can inquire about UE measuring state information tables, obtain the survey of the last measurement report Amount position, translational speed, moving direction.

Step C3, the measurement position according to the time difference and the last measurement report, translational speed, moving direction meter Calculation obtains the current location A.

Specifically, micro-base station controller can be according to the measurement position of the time difference and the last measurement report, shifting Dynamic speed, moving direction are calculated the current location A.

In the present embodiment, as the cycle of periodic measurement is very short, therefore the UE is measured in the last measurement report The mobile route at moment to current time can be approximately a straight line.Therefore, it can the survey of the last measurement report directly Amount position determines the terminal of straight line path, that is, moves as the starting point of straight line path further according to translational speed, direction and time difference The current location A of UE.The position calculating method, can improve the success rate prediction of alternative target cell.

Referring to Fig. 4, Fig. 4 is the little according to the position A and moving direction acquisition alternative target of the present embodiment offer The cell ID in area and its method flow diagram with the adjacency of service Microcell.In embodiments of the present invention, according to institute's rheme Put (step the step of A and the moving direction obtain the cell ID of alternative target cell and its adjacency with service Microcell Rapid A3) can also include：

Step D1, inquiry neighboring BS information table, obtain according to the position A and the moving direction little in front of the mobile UE The front cell ID in area and its base distance between sites ISD with service Microcell.

Specifically, micro-base station controller can inquire about neighboring BS information table, be obtained according to the position A and the moving direction The front cell ID of cell and its base distance between sites ISD with service Microcell in front of the mobile UE.

Step D2, the cell ID that front cell ID is defined as alternative target cell.

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

Step D3, the mapping table of inquiry ISD to adjacency, obtain the corresponding adjacencies of the ISD.

Specifically, micro-base station controller can inquire about ISD to the mapping table of adjacency, obtain the ISD corresponding neighbouring Degree.Wherein, the mapping table is base distance between sites (ISD, Inter Site Distance) to the mapping between adjacency, i.e., should The corresponding adjacency type of in store ISD in mapping table.Adjacency type includes " closer to the distance " and " distant ".

Referring to Fig. 5, Fig. 5 be the translational speed according to the adjacency and the mobile UE provided in an embodiment of the present invention more The method flow diagram of the cell ID of the alternative target cell of newly described mobile UE.In embodiments of the present invention, according to the neighbour The step of recency and the translational speed of the mobile UE update the cell ID of the alternative target cell of the mobile UE (step A4) can also include：

Step E1, the acquisition mobile the UE adjacent Microcell that may be moved into and the adjacency for servicing Microcell.

Specifically, micro-base station controller can according to step D3 obtain adjacent Microcell that the mobile UE may move into The adjacency of service Microcell.

Step E2, adjacency for distant when, by cover service Microcell macrocell be updated to the mobile UE Alternative target cell.

Specifically, micro-base station controller when adjacency is distant, can will cover the macrocell of service Microcell It is updated to the alternative target cell of the mobile UE.Wherein, the distant scope that refers to extends the presence of intercell interference that RE brings When cannot make up the load benefit which brings.

Step E3, adjacency for closer to the distance when, inquire about UE measuring state information memory cells, obtain the mobile UE Current translational speed.

Specifically, micro-base station controller can inquire about UE measuring state information Store lists when adjacency is closer to the distance Unit, obtains the current translational speeds of the mobile UE.

Step E4, when the mobile UE is lower-speed state, by cover service Microcell macrocell be updated to the shifting The alternative target cell of dynamic UE.

Specifically, micro-base station controller can will cover the grand of service Microcell when the mobile UE is lower-speed state Cell update is the alternative target cell of the mobile UE

Step E5, when the mobile UE is fast state, do not update alternative target cell.

In embodiments of the present invention, application RE technology in Microcell closer to the distance for front is used as by micro-base station controller The alternative target cell of high-speed mobile UE.Relative in prior art when measurement is switched over, using reference measurement parameter phase Than, the embodiment of the present invention makes neighbouring front Microcell increase the probability of mobile UE incisions front Microcell using RE technology, Reduce mobile SToS rates of the UE in macrocell, reduce mobile frequent switchings of the UE between macrocell and Microcell, and then subtract Little network signaling overhead.

For understanding the embodiment of the present invention in more detail, the concrete application scene of the present invention is given below.

Referring to Fig. 6, Fig. 6 is mobile UE mobile routes and cell deployment schematic diagram in this application scene.Wherein, MeNB is Macro base station, in macrocell coverage area, 9 Microcell picocell of random placement, are Microcell #1～#7 respectively.Mobile The service Microcell of UE is #1, and moves along the path direction that arrow is represented.According to the trend of this route, if Microcell #2 Closer to the distance with #1, then the switching target small area for moving UE is likely to Microcell #2.If Microcell #2 and #1 is distant, The switching target small area of mobile UE is then likely to the macrocell for covering #1.

Referring to Fig. 7, Fig. 7 is in this application scene to determine measuring twice recently for mobile UE according to measurement report record sheet Measurement position schematic diagram.Wherein, coordinate system, Microcell #2, # are set up to service the base station location of Microcell #1 as origin 3rd, the coordinate of #4 is respectively (x2, y2), (x3, y3), (x4, y4).Assume surveys of the mobile UE when second from the bottom measurement is measured Amount position is m points, and the measurement position in the last measurement is n points.The following detailed description of the coordinate for how calculating m points：

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

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

3) according to formula RSRP2=RSTP2-PL (R1), the radius R of RSRP equivalence rings 1 is calculated₂.Wherein, PL (R₂) It is path loss prediction model, can be obtained according to 3GPP TR36.814, the path loss prediction model of picocell is PL=140.7+ 36.7log₁₀The unit of R, R is Km；

4) in the same manner, the radius R of RSRP equivalence rings 2 is calculated₃Radius R with RSRP equivalence rings 3₄；

5) equation group is set upSolve m point coordinates (m_x,m_y)；

It is being calculated m point coordinates (m_x,m_y) after, n point coordinates (n are calculated according to same method_x,n_y).Inquiry Measurement report record sheet, the time of measuring difference for obtaining recently measurement report twice is Δ t, then can obtain：

Translational speed：

Moving direction：Wherein k is slope；

Referring to Fig. 8, Fig. 8 is the current location for determining mobile UE in this application scene according to UE measuring states information table Schematic diagram.Wherein, n points are the measurement position for moving UE in the last measurement.Inquiry UE measuring state information tables, are moved UE is (n in the measurement position of the last measurement_x,n_y), to be equal to v, moving direction slope be that k, time of measuring are to translational speed T1, and current time be t2.Position (a of A points can then be obtained_x,a_y) be

Referring to Fig. 9, Fig. 9 is translational speed and the alternative target cell and the service in this application scene according to mobile UE The adjacency of Microcell updates the schematic diagram of alternative target cell.Wherein, #2 is the adjacent Microcell in front for moving UE, i.e., currently Alternative target cell.In figure (1), Microcell #2 is distant with #1, then will cover macrocell of the service for cell #1 It is updated to alternative target cell.In figure (2), Microcell #2 is closer to the distance with #1, but the mobile status of UE is low speed, equally Macrocell of the service for cell #1 will be covered and be updated to alternative target cell.In figure (2), the distance of Microcell #2 and #1 compared with Closely, but UE mobile status not for low speed, then do not update the alternative target cell.

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

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

Measurement report memory cell 1010, for storing measurement report record sheet, records the shifting twice recently in table The periodic measurement report of dynamic UE and time of measuring, the measurement report include measuring ID, service micro-base station RSRP value, neighbour's base Stand RSRP values.When new periodic measurement report is received, the measurement report record sheet is updated；

UE measuring states information memory cell 1020, for storing UE measuring state information tables, in table, record UE is nearest Translational speed, moving direction and positional information during periodic measurement.According to measurement report record sheet is calculated Translational speed, moving direction and position.When the measurement report record sheet updates, the UE measuring states information table is updated；

Acquiring unit 1, for obtaining the current translational speeds of the mobile UE and moving direction；

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

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

Updating block 1, for updating the mobile UE according to the adjacency with the translational speed of the mobile UE Alternative target cell cell ID；

Switching prepares operation execution unit 1070, for the cell ID according to the alternative target cell, with preparation mesh Mark cell switches over preparation operation, obtains the channel resource of the alternative target cell and reserved resource information；

Switching is ready to complete signaling receiving unit 1080, is ready to complete signaling for switching, and the switching is ready to complete letter The reserved resource information of the alternative target cell is carried in order；

Acquiring unit 4 1090, for obtaining the RE biases of the alternative target cell；

ABS request instructions transmitting element 1100, for the alternative target cell be need to adopt RE technology Microcell When, the macro base station controller to the macrocell for covering service Microcell sends ABS request instructions.Wrap in the ABS request instructions It is the reserved resource informations of the mobile UE to include alternative target cell；

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

Acquiring unit 5 1120, avoids switching condition for obtaining the table tennis for being switched to the alternative target cell；

Switching command transmitting element 1130, for sending switching command to the mobile UE.Carry in the switching command The cell ID of the alternative target cell and the RE biases；

Switching indicates receiving unit 1140, and the switching for receiving from the mobile UE is indicated；

Switching performance element 1150, for identical with the cell ID of the alternative target cell in the Target cell When, control the mobile UE and be switched to the alternative target cell；In the little of the Target cell and the alternative target cell When area's mark is different, controls the mobile UE and be switched to the Target cell, discharge the channel reservation of the alternative target cell Resource；

The micro-base station controller embodiment that the present embodiment is provided is can apply in aforementioned mobile robustness optimization method.

Referring to Figure 11, Figure 11 is UE measuring state information memory cells in micro-base station controller provided in an embodiment of the present invention Schematic diagram.In embodiments of the present invention, UE measuring states information memory cell includes：

Acquisition module I1021, for inquiring about measurement report memory cell, obtains recently the time of measuring of measurement report twice Difference Δ t；

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

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

Determining module IV1024, for determining second from the bottom measurement report measurement position m.According to adjacent base station a, b kimonos The RSRP report values of business micro-base station, positional information and transmission power, determine the RSRP equivalence rings of three base stations.By described three The intersection point of RSRP equivalence rings is defined as measurement position m；

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

Determining module VI1026, for determining the last measurement report measurement position n.According to adjacent base station a, b and service The RSRP report values of micro-base station, positional information and transmission power, determine the RSRP equivalence rings of three base stations.By three RSRP The intersection point of equivalent ring is defined as measurement position n；

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

Computing module VIII1028, for calculating the current moving directions of the 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 provided in an embodiment of the present invention.? In the embodiment of the present invention, acquiring unit two includes：

Acquisition module I1041, for inquiring about measurement report memory cell, obtains current time with the measurement of last time measurement report The time difference of time；

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

Computing module III1043, the time span and enquiry module II for being obtained according to acquisition module I are inquired The last measurement report in measurement position, translational speed, moving direction be calculated the current location A；

Referring to Figure 13, Figure 13 is the schematic diagram of acquiring unit three in micro-base station controller provided in an embodiment of the present invention.? In the embodiment of the present invention, acquiring unit three includes：

Acquisition module I1051, for inquiring about neighboring BS information table, obtains the front cell ID of cell in front of the mobile UE And its base distance between sites ISD with service Microcell；

Determining module II1052, for front cell ID to be defined as the cell ID of alternative target cell；

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

Referring to Figure 14, Figure 14 is the schematic diagram of updating block one in micro-base station controller provided in an embodiment of the present invention.? In the embodiment of the present invention, updating block one includes：

Acquisition module I1061, for inquiring about the result of acquiring unit three, it is adjacent micro- that the acquisition mobile UE may be moved into Cell and the adjacency for servicing Microcell；

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

Update module III1063, for being updated to the alternative target cell by the macrocell for covering service Microcell；

Acquisition module IV1064, for inquiring about UE measuring state information memory cells, obtains the current shiftings of the mobile UE Dynamic speed；

Judge module V1065, for judging whether the present speed of the mobile UE is low speed.If so, renewal is then gone to Module ii I. otherwise, does not update；

Referring to Figure 15, Figure 15 is the schematic diagram of macro base station controller provided in an embodiment of the present invention.In the embodiment of the present invention In, macro base station controller includes：

ABS request instructions receiving unit 2010, for receiving ABS request instructions；

ABS dispensing units 2020, for configuring corresponding A BS subframe according to the ABS request instructions；

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

Macro base station controller embodiment provided in an embodiment of the present invention can apply to aforementioned mobile robustness optimization method In.

Referring to Figure 16, Figure 16 is the schematic diagram of mobile UE user equipmenies provided in an embodiment of the present invention.In present invention enforcement In example, mobile UE user equipmenies include：

Switching command receiving unit 3010, for receiving switching command, carries the alternative target in the switching command The cell ID of cell, the table tennis avoid switching condition and the RE biases；

Switching indicates transmitting element 3020, for when the table tennis avoids switching condition from meeting, to micro-base station controller Send switching to indicate, the switching carries the cell ID of Target cell in indicating；

Mobile UE user equipmenies embodiment provided in an embodiment of the present invention can apply to aforementioned mobile robustness optimization side In method.

Finally illustrate, preferred embodiment above is only unrestricted in order to technical scheme to be described, although logical Cross above preferred embodiment to be described in detail the present invention, it is to be understood by those skilled in the art that can be In form and various changes are made to which in details, without departing from claims of the present invention limited range.

Claims (8)

1. based on mobile status information and the mobile robustness optimization method of adjacent area adjacency, it is characterised in that：Including following step Suddenly：

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

According to position A and moving direction determine alternative target cell cell ID and its with service Microcell adjacency；

The cell mark of the alternative target cell of the mobile UE is updated according to the adjacency with the translational speed of the mobile UE Know；

According to the cell ID of the alternative target cell, preparation operation is switched over alternative target cell, obtained described pre- The channel resource of standby Target cell and reserved resource information；

Obtain the RE biases of the alternative target cell；

When the alternative target cell is to need the Microcell using RE technology, to the grand of the macrocell for covering service Microcell Base station controller sends ABS request instructions, and receives ABS confirmation instructions, the alternative target cell carried in the request instruction For the reserved resource informations of the mobile UE；

Macro base station controller receives the ABS request instructions from service Microcell, and carrying in the instruction needs to be configured to ABS's Band information；

Macro base station controller configures corresponding A BS subframe according to the ABS request instructions；

When the configuration of ABS subframes is completed, macro base station controller sends ABS to micro-base station controller and confirms instruction；

The table tennis that current translational speed acquisition according to the mobile UE is switched to the alternative target cell avoids switching condition；

Switching command is sent to the mobile UE, cell ID, the institute of the alternative target cell in the switching command, is carried State table tennis and avoid switching condition and the RE biases；

The mobile UE receives the switching command from service Microcell, carries the alternative target cell in the switching command Cell ID, the table tennis avoid switching condition and the RE biases；

When the table tennis avoids switching condition from meeting, the mobile UE sends switching to micro-base station controller and indicates, switching refers to Show the middle cell ID for carrying Target cell；

The switching instruction from the UE is received, the cell ID of Target cell in the switching indication signaling, is carried；

When the Target cell is identical with the cell ID of the alternative target cell, the control mobile UE is switched to described Alternative target cell；

When the Target cell is different with the cell ID of the alternative target cell, the control mobile UE is switched to described Target cell, discharges the channel reservation resource of the alternative target cell.

2. according to claim 1 based on mobile status information and the mobile robustness optimization method of adjacent area adjacency, its It is characterised by：The process for obtaining the current translational speeds of the mobile UE and moving direction is specifically included：

Inquiry measurement report record sheet, obtains recently the time of measuring difference Δ t of measurement report twice；

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

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

According to adjacent base station a, second from the bottom RSRP measurement report values, positional information and the transmission power of b, c, three base stations are determined RSRP equivalence ring, by three RSRP equivalence ring intersection point be defined as second from the bottom measurement report measurement position m；

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

According to adjacent base station a, the last RSRP measurement report values of b, c, positional information and transmission power, three base stations are determined The intersection point of three RSRP equivalence rings is defined as the last measurement report measurement position n by RSRP equivalence rings；

The current translational speeds of the mobile UE are calculated according to Δ t, m and n；

The current moving directions of the mobile UE are calculated according to m and n.

3. according to claim 1 based on mobile status information and the mobile robustness optimization method of adjacent area adjacency, its It is characterised by：Obtain the current position A of the mobile UE to comprise the following steps：

Inquiry measurement report record sheet, obtains the time difference at current time and last time measurement report time of measuring；

Inquiry UE measuring state information tables, the measurement position of the last measurement report of acquisition, translational speed, moving direction；

Measurement position, translational speed according to the time difference and the last measurement report, moving direction are calculated currently Position A；

The cell ID of alternative target cell and its neighbouring with service Microcell is obtained according to position A and the moving direction Degree,

Specifically include following steps：

Inquiry neighboring BS information table is little according to the front that the position A and the moving direction obtain cell in front of the mobile UE Area's mark and its base distance between sites ISD with service Microcell；

The cell ID that front cell ID is defined as alternative target cell；

Mapping tables of the inquiry ISD to adjacency, obtains the corresponding adjacencies of the ISD.

4. according to claim 1 based on mobile status information and the mobile robustness optimization method of adjacent area adjacency, its It is characterised by：The cell mark of the alternative target cell according to adjacency mobile UE described with the translational speed renewal of mobile UE Know, specifically include：

Obtain the mobile the UE adjacent Microcell that may be moved into and the adjacency for servicing Microcell；

When adjacency is distant, the alternative target that the macrocell for covering service Microcell is updated to the mobile UE is little Area；

When adjacency is closer to the distance, UE measuring state information memory cells are inquired about, obtain the current movements of the mobile UE Speed；

When the mobile UE is lower-speed state, the alternative target for being updated to move UE by the macrocell for covering service Microcell is little Area；

When the mobile UE is fast state, alternative target cell is not updated.

5. a kind of micro-base station controller, it is characterised in that：Including：

Measurement report memory cell：For storing measurement report record sheet, the mobile UE for recording in table twice recently is periodic Measurement report and time of measuring, the measurement report include measuring ID, service micro-base station RSRP value, adjacent base station RSRP value, When receiving new periodic measurement report, the measurement report record sheet is updated；

UE measuring state information memory cells：For storing UE measuring state information tables, in table, record UE is in the last cycle Property measurement when translational speed, moving direction and positional information, according to measurement report record sheet be calculated the translational speed, Moving direction and position, when the measurement report record sheet updates, update the UE measuring states information table；

Acquiring unit one：For obtaining the current translational speeds of the mobile UE and moving direction；

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

Acquiring unit three：For obtaining the cell ID for determining alternative target cell according to the position A and the moving direction And its adjacency with service Microcell；

Updating block one：For updating the preparation mesh of the mobile UE according to the adjacency and the translational speed of the mobile UE The cell ID of mark cell；

Switching prepares operation execution unit：For the cell ID according to the alternative target cell, enter with alternative target cell Row switching prepares operation, obtains the channel resource of the alternative target cell and reserved resource information；

Switching is ready to complete signaling receiving unit：Signaling is ready to complete for switching, the switching is ready to complete in signaling and carries The reserved resource information of the alternative target cell；

Acquiring unit four：For obtaining the RE biases of the alternative target cell；

ABS request instruction transmitting elements：For when the alternative target cell is to need the Microcell using RE technology, to covering The macro base station controller of the macrocell of lid service Microcell sends ABS request instructions, and the ABS request instructions include preparing mesh Mark cell is the reserved resource informations of the mobile UE；

ABS confirms instruction reception unit：Instruction is confirmed for receiving ABS；

Acquiring unit five：Switching condition is avoided for obtaining the table tennis for being switched to the alternative target cell；

Switching command transmitting element：For switching command being sent to the mobile UE, carry the preparation in the switching command The cell ID of Target cell and the RE biases；

Switching indicates receiving unit：Switching for receiving from the mobile UE is indicated；

Switching performance element：For when the Target cell is identical with the cell ID of the alternative target cell, controlling institute State mobile UE and be switched to the alternative target cell；Different with the cell ID of the alternative target cell in the Target cell When, control the mobile UE and be switched to the Target cell, discharge the channel reservation resource of the alternative target cell.

6. a kind of micro-base station controller according to claim 5, it is characterised in that：The UE measuring states information Store list Unit includes：

Acquisition module I：For inquiring about measurement report memory cell, the time of measuring difference Δ t of measurement report twice is obtained recently；

Enquiry module II：For inquiring about neighboring BS information table, any three adjacent base stations a, the positional information of b, c and transmitting work(is obtained Rate；

Acquisition module III：For inquiring about measurement report memory cell, second from the bottom measurement report is obtained；

Determining module IV：For determining second from the bottom measurement report measurement position m, according to adjacent base station a, the RSRP of b, c is reported Value, positional information and transmission power, determine the RSRP equivalence rings of three base stations, the intersection point of three RSRP equivalence rings are determined For measurement position m；

Acquisition module V：For inquiring about measurement report memory cell, the last measurement report is obtained；

Determining module VI：For determining the last measurement report measurement position n, according to adjacent base station a, the RSRP report values of b, c, Positional information and transmission power, determine the RSRP equivalence rings of three base stations, the intersection point of three RSRP equivalence rings are defined as Measurement position n；

Computing module VII：The current translational speeds of the mobile UE are calculated according to Δ t, m and n；

Computing module VIII：The current moving directions of the mobile UE are calculated according to m and n.

7. a kind of micro-base station controller according to claim 5, it is characterised in that：

The acquiring unit two includes：

Acquisition module I：For inquiring about measurement report memory cell, obtain current time and last time measurement report time of measuring when Between poor；

Enquiry module II：For inquiring about UE measuring state information memory cells, obtain the last measurement report measurement position, Translational speed, moving direction；

Computing module III：Nearest one inquired for the time span that obtained according to acquisition module I and enquiry module II Measurement position, translational speed in secondary measurement report, moving direction are calculated the current location A；

The acquiring unit three includes：

Acquisition module I：For inquiring about neighboring BS information table, obtain in front of the mobile UE front cell ID of cell and its with The base distance between sites ISD of service Microcell；

Determining module II：For front cell ID to be defined as the cell ID of alternative target cell；

Acquisition module III：For inquiring about ISD- adjacency mapping tables, the corresponding adjacencies of the ISD are obtained.

8. a kind of micro-base station controller according to claim 5, it is characterised in that：The updating block one includes：

Acquisition module I：For inquiring about the result of acquiring unit three, adjacent Microcell and clothes that the mobile UE may be moved into are obtained The adjacency of business Microcell；

Judge module II：For judging whether the adjacency is distant, update module III is if so, then gone to, otherwise,

Go to acquisition module IV；

Update module III：For the macrocell for covering service Microcell is updated to the alternative target cell；

Acquisition module IV：For inquiring about UE measuring state information memory cells, the current translational speeds of the mobile UE are obtained；

Judge module V：For judging whether the present speed of the mobile UE is low speed, if so, then goes to update module III, Otherwise, do not update.