CN107317645A - A kind of method and device of Inter-Cell Interference Coordination - Google Patents

Abstract

The invention discloses a kind of method and device of Inter-Cell Interference Coordination, on the basis of realizing inter-cell load in a balanced way, to reduce the interference of minizone.This method includes：According to the load of this cell, the micro-base station for needing to switch coverage extension CRE functional statuses in this cell is determined；The scheduling limitation subframe ABS configuration informations of this cell are updated, and the ABS configuration informations after renewal are sent to the micro-base station；Wherein, the micro-base station of switching CRE functional statuses is needed in described cell, including needs to open the first micro-base station of CRE functions in this cell, and/or, need to close the second micro-base station of CRE functions in this cell.

Description

A kind of method and device of Inter-Cell Interference Coordination

Technical field

The present invention relates to communication technical field, more particularly to a kind of method and device of Inter-Cell Interference Coordination.

Background technology

Heterogeneous network by changing the topological structure of conventional cellular network, by macro base station (Macro eNB) with Distal end radio node (RRH), low power nodes (such as station, Home eNodeB, relaying slightly) mixing group Net, shortens the transmission range of wireless signal between the transmitter and receiver, so as to improve indoor and heat The capacity in point region, enhances the covering energy of Long Term Evolution (Long Term Evolution, LTE) network Power, improves the service quality of Cell Edge User, improves the capacity and efficiency of transmission of whole access network.

In typical grand-micro- (Macro-Pico) deployment scenario, Pico cells are connected in order to increase User equipment (User Equipment, UE) quantity, allows Pico cell absorptive capacities as far as possible, generally uses Solution be coverage extension (Cell Range Expansion, CRE), i.e., by Pico cells Reference Signal Received Power (Reference Signal Received Power, RSRP) is specific plus some cell Deviant (Bias) be CRE Bias to increase its descending coverage, can be made by the method close The macrocellular edge UE selections of Pico cells are linked into Pico cells, reach the mesh of the load bridging of minizone , referring to Fig. 1.

Signal is most strong small when due to the serving cell of the UE in CRE coverages not being the selection of its cell Area, therefore the signal that the UE is received can be by the strong descending interference of adjacent macro station.Enhancement type district is done It is based on time domain ICIC to disturb coordination (enhanced InterCell Interference Coordination, eICIC) Solution heterogeneous network (HetNet) in problem of inter-cell interference scheme.The base of time domain ICIC schemes This thought is used by coordinating the subframe on each neighbor cell, and cell is avoided using the isolation of time-domain resource Between control channel and data channel interference.Concrete scheme is the use for planning the sub-frame resources in time domain, Therefore the concept of scheduling limitation subframe (Almost Blank Subframe, ABS) is introduced, ABS refers to The subframe of transmit power (comprising not sending) and reduction activity is reduced on some physical channels.I.e. in interference By part sub-frame configuration into ABS in cell (the Macro eNB in such as Macro-Pico scenes), so that Transmit power (comprising do not send) of the interfered cell in these subframes is limited, so as to reduce to disturbed small The interference in area.

However, being to fix to open and set cell extension bias in the prior art.This thought lack Putting is：Can not in real time be opened according to the load of Marco cells and Pico cells/CRE is closed, work as Macro When cell load is relatively low, when Pico cell loads are higher, CRE is not closed now, it is not only possible to can be caused Macro cell throughouts decline, and can further increase the load of Pico cells, cause under systematic function Drop；, can not be small by Macro if CRE can not be opened in time when Macro cell loads are higher The UE in area is connected to Pico cells, it is impossible to realize that the load of effective Macro cells and Pico cells is equal Weighing apparatus.

The content of the invention

The embodiments of the invention provide a kind of method and device of Inter-Cell Interference Coordination, to realize cell Between on the basis of load balancing, reduce the interference of minizone.

A kind of method of Inter-Cell Interference Coordination (ICIC) provided in an embodiment of the present invention, including：

According to the load of this cell, determine to need to switch coverage extension CRE functional statuses in this cell Micro-base station；

The scheduling limitation subframe ABS configuration informations of this cell are updated, and by the ABS configuration informations after renewal It is sent to the micro-base station；Wherein, the micro-base station of switching CRE functional statuses is needed in described cell, The first micro-base station including needing unlatching CRE functions in this cell, and/or, need to close CRE in this cell Second micro-base station of function.

In ICIC provided in an embodiment of the present invention method, first according to the load of this cell, it is determined that this is small Needed in area switch CRE functional statuses micro-base station, so as to by the UE in macrocell macrocell with Switch between Microcell, realize the load balancing under heterogeneous network scene, secondly, update this cell ABS configuration informations, and the ABS configuration informations after renewal are sent to the micro-base station, wherein, it is described The first micro-base station of unlatching CRE functions is needed in micro-base station, including this cell, and/or, this cell domestic demand The second micro-base station of CRE functions is closed, so as to be configured by the ABS for adjusting cell, is reduced to neighbour The interference of area's signal, improves the performance of system.

It is preferred that according to the load of this cell, determine to need in this cell open CRE functions first micro- Base station, is specifically included：

The load of this cell is compared with default first threshold value, this cell is determined according to comparative result Inside need the first micro-base station of unlatching CRE functions.

It is preferred that the first micro-base station for needing to open CRE functions in this cell is determined according to comparative result, Specifically include：

When the load of this cell is more than default first threshold value, also, for every in this cell coverage area One micro-base station, when it is determined that the corresponding load of edge customer equipment UE is more than default second threshold value, really The fixed micro-base station is the first micro-base station for needing to open CRE functions, wherein, the edge UE is micro- base It is outside the cell of covering of standing, adjacent and belong to the UE of this cell with the cell of micro-base station covering.

So as to determine to need to open the of CRE functions by judging the load of this cell and Microcell One micro-base station, after the CRE functions of the first micro-base station are opened, may be such that the edge UE connections of this cell Onto first micro-base station, and then reduce the load of this cell, have effectively achieved macro base station and micro-base station it Between load balancing, taken into account the handling capacity of macro base station and micro-base station.

It is preferred that according to the load of this cell, determining that this cell needs to close second micro- base of CRE functions Stand, specifically include：

When the load of this cell is less than default three threshold value, determine to have turned on CRE work(in this cell All micro-base stations of energy are the second micro-base station for needing to close CRE functions.

So as to when the load of this cell is less than default three threshold value, characterize the load of this cell currently It is relatively low, therefore the CRE functions closing of all micro-base stations of CRE functions will be had turned in this cell, so that The UE obtained in these CRE regions is reconnected in this cell, is reduced the load of Microcell, is realized grand small Area and the load balancing of Microcell.

It is preferred that according to the load of this cell, determine to need in this cell close CRE functions second micro- Base station, in addition to：

When the load of this cell is more than or equal to default 3rd threshold value, and CRE is had turned in this cell The load sum that all micro-base stations of function are distinguished in corresponding CRE regions is less than default 4th threshold value When, it is need to close CRE functions second to determine all micro-base stations that CRE functions are had turned in this cell Micro-base station.

So as to after the CRE functions of closing the second micro-base station, by the CRE regions of second micro-base station UE is reconnected in this cell, with the load for the cell for reducing by second micro-base station covering, is realized grand small Area and the load balancing of Microcell.

It is preferred that according to the load of this cell, determine to need in this cell close CRE functions second micro- Base station, in addition to：

The load in corresponding CRE regions is distinguished when all micro-base stations that CRE functions are had turned in this cell Sum is more than or equal to default 4th threshold value, also, has turned on CRE work(for each in this cell The micro-base station of energy, when it is determined that the load of the cell of micro-base station covering is more than default five threshold value, really The fixed micro-base station is the second micro-base station for needing to close CRE functions.

So as to after the CRE functions of closing the second micro-base station, by the CRE regions of second micro-base station UE is reconnected in this cell, with the load for the cell for reducing by second micro-base station covering, is realized grand small Area and the load balancing of Microcell.

It is preferred that updating the ABS configuration informations of this cell, specifically include：

The load information of the load information of this cell and the cell of first micro-base station covering is obtained, and is adopted ABS configuration densities are calculated with equation below：

ABS_Density=(L₁/P×α₁)/(L₁/P×α₁+L_2,1×α₂+L_2,2)

Wherein, L₁The load in the corresponding CRE regions of first micro-base station is represented, P represents described first micro- base The number stood, α₁Represent the corresponding load weights in CRE regions, L_2,1Represent UE correspondences in center in this cell Load, L_2,2Represent the corresponding loads of this cell inward flange UE, α₂Represent UE correspondences in center in this cell Load weights；

According to the ABS configuration densities, the ABS configuration informations of this cell are updated.

So as to while considering the corresponding load of center UE in this cell and edge UE is corresponding negative Carry, the ABS configuration densities calculated by this method can effectively realize handling up for macrocell and Microcell The equilibrium of amount.

It is preferred that after updating the ABS configuration informations of this cell, this method also includes：

Handoff parameter is configured for the UE of this cell, also, according to the ABS configuration informations after the renewal, Sub-frame set is measured for UE configurations, wherein, the handoff parameter, which includes this cell, to be needed to switch CRE The corresponding CRE deviants of micro-base station of functional status.

It is preferred that before for UE configuration measurement sub-frame sets, this method also includes：Obtain this cell State current interior UE, state current UE described in any of which is for indicating that the UE is that this is small In area center UE state or for indicate the UE be this cell inward flange UE state；

It is the UE configurations measurement sub-frame set, specific bag according to the ABS configuration informations after the renewal Include：

For each UE, according to the current states of the UE, and the ABS configurations after the renewal Information, for UE configuration measurement sub-frame sets.

It is preferred that this method also includes：

For each UE, according to the ABS configuration informations after the renewal, and the UE current State, determines the dispatching priorities of the UE on different sub frames；

For can be used in each subframe being scheduled to UE, according to the tune of the difference UE in the subframe Priority is spent, the different UE are scheduled.

It is preferred that being determined to the subframe for being scheduled to UE in the following way：

For present sub-frame, if according to the ABS configuration informations after the renewal, it is not ABS to determine the subframe, Then determine that present sub-frame is the subframe that can be used in being scheduled UE.

So as to be screened according to the type of subframe to subframe, to be determined to be used for be scheduled UE Subframe, improve to UE dispatch efficiency.

A kind of device of Inter-Cell Interference Coordination provided in an embodiment of the present invention, including：

Determining unit, for the load according to this cell, determines to need to switch coverage extension in this cell The micro-base station of CRE functional statuses；

Dispensing unit, the scheduling for updating this cell limits subframe ABS configuration informations, and by after renewal ABS configuration informations be sent to the micro-base station；Wherein, need to switch CRE functions in described cell The micro-base station of state, including need to open the first micro-base station of CRE functions in this cell, and/or, this is small The second micro-base station of closing CRE functions is needed in area.

It is preferred that load of the determining unit according to this cell, determines to need to open CRE in this cell During the first micro-base station of function, specifically for：

The load of this cell is compared with default first threshold value, this cell is determined according to comparative result Inside need the first micro-base station of unlatching CRE functions.

It is preferred that the determining unit determines to need to open CRE functions in this cell according to comparative result During the first micro-base station, specifically for：

When the load of this cell is more than default first threshold value, also, for every in this cell coverage area One micro-base station, when it is determined that the corresponding load of edge customer equipment UE is more than default second threshold value, really The fixed micro-base station is the first micro-base station for needing to open CRE functions, wherein, the edge UE is micro- base It is outside the cell of covering of standing, adjacent and belong to the UE of this cell with the cell of micro-base station covering.

It is preferred that load of the determining unit according to this cell, determines that this cell needs to close CRE work( During the second micro-base station of energy, specifically for：

When the load of this cell is less than default three threshold value, determine to have turned on CRE work(in this cell All micro-base stations of energy are the second micro-base station for needing to close CRE functions.

It is preferred that load of the determining unit according to this cell, determines to need to close CRE in this cell During the second micro-base station of function, it is additionally operable to：

When the load of this cell is more than or equal to default 3rd threshold value, and CRE is had turned in this cell The load sum that all micro-base stations of function are distinguished in corresponding CRE regions is less than default 4th threshold value When, it is need to close CRE functions second to determine all micro-base stations that CRE functions are had turned in this cell Micro-base station.

It is preferred that load of the determining unit according to this cell, determines to need to close CRE in this cell During the second micro-base station of function, it is additionally operable to：

The load in corresponding CRE regions is distinguished when all micro-base stations that CRE functions are had turned in this cell Sum is more than or equal to default 4th threshold value, also, has turned on CRE work(for each in this cell The micro-base station of energy, when it is determined that the load of the cell of micro-base station covering is more than default five threshold value, really The fixed micro-base station is the second micro-base station for needing to close CRE functions.

It is preferred that when the dispensing unit updates the ABS configuration informations of this cell, specifically for：

The load information of the load information of this cell and the cell of first micro-base station covering is obtained, and is adopted ABS configuration densities are calculated with equation below：

ABS_Density=(L₁/P×α₁)/(L₁/P×α₁+L_2,1×α₂+L_2,2)

Wherein, L₁The load in the corresponding CRE regions of first micro-base station is represented, P represents described first micro- base The number stood, α₁Represent the corresponding load weights in CRE regions, L_2,1Represent UE correspondences in center in this cell Load, L_2,2Represent the corresponding loads of this cell inward flange UE, α₂Represent UE correspondences in center in this cell Load weights；

According to the ABS configuration densities, the ABS configuration informations of this cell are updated.

It is preferred that the dispensing unit determine to update this cell scheduling limitation subframe ABS configuration informations it Afterwards, it is additionally operable to：

Handoff parameter is configured for the UE of this cell, also, according to the ABS configuration informations after the renewal, Sub-frame set is measured for UE configurations, wherein, the handoff parameter, which includes this cell, to be needed to switch CRE The corresponding CRE deviants of micro-base station of functional status.

It is preferred that before the dispensing unit is UE configuration measurement sub-frame sets, being additionally operable to：Obtain State current UE in this cell, state current UE described in any of which is for indicating the UE For center UE state in this cell or for indicating state that the UE is this cell inward flange UE；

The dispensing unit, according to the ABS configuration informations after the renewal, is the UE configurations measurement subframe During set, specifically for：

For each UE, according to the current states of the UE, and the ABS configurations after the renewal Information, for UE configuration measurement sub-frame sets.

It is preferred that the device also include scheduling unit, the scheduling unit specifically for：

For each UE, according to the ABS configuration informations after the renewal, and the UE current State, determines the dispatching priorities of the UE on different sub frames；

For can be used in each subframe being scheduled to UE, according to the tune of the difference UE in the subframe Priority is spent, the different UE are scheduled.

It is preferred that the scheduling unit is determined to the subframe for being scheduled to UE in the following way：

For present sub-frame, if according to the ABS configuration informations after the renewal, it is not ABS to determine the subframe, Then determine that present sub-frame is the subframe that can be used in being scheduled UE.

Brief description of the drawings

The technical scheme of the embodiment of the present application or prior art is illustrated more clearly that, below will be in embodiment The required accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only this Shen Some embodiments please, for those of ordinary skill in the art, are not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is that existing cell coverage area extends schematic diagram；

Fig. 2 is a kind of schematic flow sheet of the method for Inter-Cell Interference Coordination provided in an embodiment of the present invention；

Fig. 3 is a kind of inside of base station high-level schematic functional block diagram provided in an embodiment of the present invention；

Fig. 4 be under a kind of Macro-Pico networking scenes provided in an embodiment of the present invention macro base station and micro-base station it Between signalling interactive process schematic diagram；

Fig. 5 implements frame for a kind of CRE configuration modules of inside of base station provided in an embodiment of the present invention Figure；

Fig. 6 is a kind of deterministic process schematic diagram of unlatching CRE functions provided in an embodiment of the present invention；

Fig. 7 is a kind of deterministic process schematic diagram of closing CRE functions provided in an embodiment of the present invention；

Fig. 8 implements frame for a kind of ABS configuration modules of inside of base station provided in an embodiment of the present invention Figure；

Fig. 9 measures the specific reality of configuration module for a kind of eICIC of inside of base station provided in an embodiment of the present invention Existing block diagram；

Figure 10 is a kind of specific reality of the UE state update modules of inside of base station provided in an embodiment of the present invention Existing block diagram；

Figure 11 is a kind of dispatching algorithm schematic flow sheet provided in an embodiment of the present invention；

Figure 12 is a kind of structural representation of the device of Inter-Cell Interference Coordination provided in an embodiment of the present invention.

Embodiment

The embodiments of the invention provide a kind of method and device of Inter-Cell Interference Coordination, to realize cell Between on the basis of load balancing, reduce the interference of minizone.

In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing and reality Example is applied, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only Only to explain the present invention, it is not intended to limit the present invention.

The method of Inter-Cell Interference Coordination provided in an embodiment of the present invention, can be applied in heterogeneous network (Hetnet) in topological structure, such as the Maco-Pico network deployment scenarios in LTE system will Macro base station and micro-base station mixed networking, wherein macro base station provide grand covering, and micro-base station is carried in grand coverage Heat supply point is covered.Micro-base station described in the embodiment of the present invention, is the node of low-power, or is this ground Stand (Local eNB), such as micro, slight station, Home eNodeB, trunking (Relay).

In macro base station side, referring to Fig. 2, the embodiments of the invention provide a kind of method of Inter-Cell Interference Coordination, Including：

S101, the load according to this cell, determine the micro- base for needing to switch CRE functional statuses in this cell Stand；

Here, the load of this cell, for example, can be the quantity or this cell of UE in this cell Interior total business demand amount etc..

S102, the ABS configuration informations for updating this cell, and the ABS configuration informations after renewal are sent to The micro-base station；Wherein, the micro-base station of switching CRE functional statuses, including this are needed in described cell The first micro-base station of unlatching CRE functions is needed in cell, and/or, need to close CRE functions in this cell The second micro-base station.

Wherein, ABS configuration informations include ABS Pattern (i.e. the concrete configuration of subframe, for example which are sub Frame is configured to ABS, which for normal consistency subframe etc.), measurement sub-frame set (Measurement Subset)。

Because step S101 and step S102 executive agent are macro base station, therefore, step S101 and S102 Described in this cell be macro base station cover cell, macrocell is referred to as, correspondingly, in macrocell Micro-base station covering cell be referred to as Microcell.That is, cell provided in an embodiment of the present invention Between interference coordination method in, whether the micro-base station in macrocell opens CRE functions or whether closes CRE Function, is judged by macro base station side, when it is determined that needing to switch the micro- of CRE functional statuses in macrocell Behind base station, then the ABS configurations of macrocell are updated, preferably to coordinate the interference of minizone, while will more ABS configuration informations after new are sent to the micro-base station for needing to switch CRE functional statuses, so as to micro-base station root According to the ABS configuration informations of macrocell, it is determined that be turned on and off CRE functions, and adjust the subframe of itself and match somebody with somebody Put.

It is preferred that in step S101, according to the load of this cell, determining to need to open CRE in this cell First micro-base station of function, is specifically included：

The load of this cell is compared with default first threshold value, this cell is determined according to comparative result Inside need the first micro-base station of unlatching CRE functions.Specifically, when the load of this cell is more than default the One threshold value, also, for each micro-base station in this cell coverage area, when it is determined that edge customer equipment When the corresponding loads of UE are more than default second threshold value, determine the micro-base station to need to open CRE functions The first micro-base station, wherein, the edge UE be the micro-base station cover cell outside, with micro- base The cell covered of standing is adjacent and belongs to the UE of this cell.

That is, the load of the micro-base station in load and this cell with reference to this cell, when this cell When load is more than default first threshold value, it is higher to characterize the load of this cell currently, determine whether with it is micro- Whether the corresponding loads of edge UE in adjacent this cell of cell of base station covering are more than default second Limit value, if so, then open the CRE functions of the micro-base station, so that by the cell phase covered with the micro-base station Edge UE in this adjacent cell is unloaded to the micro-base station (will edge UE be connected to the Microcell), To reduce the load of this cell, the load balancing of macrocell and Microcell is realized.

It is preferred that in step S101, according to the load of this cell, determining that this cell needs to close CRE work( Second micro-base station of energy, is specifically included：

When the load of this cell is less than default three threshold value, determine to have turned on CRE work(in this cell All micro-base stations of energy are the second micro-base station for needing to close CRE functions.

That is, when the load of this cell is less than default three threshold value, this cell is characterized current Load is relatively low, therefore, it can the CRE functions of all micro-base stations by CRE functions are had turned in this cell Close, to cause the UE in these CRE regions to reconnect in this cell, reduce the load of Microcell, Realize the load balancing of macrocell and Microcell.

It is preferred that according to the load of this cell, determine to need in this cell close CRE functions second micro- Base station, in addition to：

When the load of this cell is more than or equal to default 3rd threshold value, and CRE is had turned in this cell The load sum that all micro-base stations of function are distinguished in corresponding CRE regions is less than default 4th threshold value When, it is need to close CRE functions second to determine all micro-base stations that CRE functions are had turned in this cell Micro-base station.

So as to after the CRE functions of closing the second micro-base station, by the CRE regions of second micro-base station UE is reconnected in this cell, with the load for the cell for reducing by second micro-base station covering, is realized grand small Area and the load balancing of Microcell.

It is preferred that according to the load of this cell, determine to need in this cell close CRE functions second micro- Base station, in addition to：

The load in corresponding CRE regions is distinguished when all micro-base stations that CRE functions are had turned in this cell Sum is more than or equal to default 4th threshold value, also, has turned on CRE work(for each in this cell The micro-base station of energy, when it is determined that the load of the cell of micro-base station covering is more than default five threshold value, really The fixed micro-base station is the second micro-base station for needing to close CRE functions.

If that is, all micro-base stations that CRE functions are had turned in this cell distinguish corresponding CRE areas Load sum in domain is more than default 4th threshold value, then has turned on CRE to each in this cell respectively The load of the micro-base station of function is judged, when the load for the cell that the micro-base station is covered is more than the default 5th During threshold value, it is determined that the current load too high of the micro-base station is, it is necessary to close CRE functions to cause the CRE UE in region is reconnected in this cell, so as to reduce the load of the micro-base station, realize macrocell with The load balancing of Microcell.

It is preferred that in step S102, updating the ABS configuration informations of this cell, specifically including：

The load information of the load information of this cell and the cell of first micro-base station covering is obtained, and is adopted ABS configuration densities are calculated with equation below：

ABS_Density=(L₁/P×α₁)/(L₁/P×α₁+L_2,1×α₂+L_2,2) (1)

Wherein, L₁The load in the corresponding CRE regions of first micro-base station is represented, P represents described first micro- base The number stood, α₁Represent the corresponding load weights in CRE regions, L_2,1Represent UE correspondences in center in this cell Load, L_2,2Represent the corresponding loads of this cell inward flange UE, α₂Represent UE correspondences in center in this cell Load weights；

According to the ABS configuration densities, the ABS configuration informations of this cell are updated.

It is preferred that after determining to need to switch the micro-base stations of CRE functional statuses in this cell, this method is also Including：

Handoff parameter is configured for the UE of this cell, also, according to the ABS configuration informations after the renewal, Sub-frame set is measured for UE configurations, wherein, the handoff parameter, which includes this cell, to be needed to switch CRE The corresponding CRE deviants of micro-base station of functional status.

It is preferred that after determining to need to switch the micro-base stations of CRE functional statuses in this cell, this method is also Including：Obtain the current state of UE in this cell, state current UE described in any of which be for It is center UE state or for indicating that the UE is this cell inward flange UE in this cell to indicate the UE State；

It is the UE configurations measurement sub-frame set, specific bag according to the ABS configuration informations after the renewal Include：

For each UE, according to the current states of the UE, and the ABS configurations after the renewal Information, for UE configuration measurement sub-frame sets.

It is preferred that this method also includes：

For each UE, according to the ABS configuration informations after the renewal, and the UE current State, determines the dispatching priorities of the UE on different sub frames；

For can be used in each subframe being scheduled to UE, according to the tune of the difference UE in the subframe Priority is spent, the different UE are scheduled.

It is preferred that being determined to the subframe for being scheduled to UE in the following way：

For present sub-frame, if according to the ABS configuration informations after the renewal, it is not ABS to determine the subframe, Then determine that present sub-frame is the subframe that can be used in being scheduled UE.

The method of Inter-Cell Interference Coordination described above, its executive agent is macro base station, be therefore, it can Several functional modules are subdivided into inside macro base station, to perform above-mentioned steps jointly, so as to realize that minizone is done Disturb coordination.Correspondingly, micro-base station can also include the functional module similar with macro base station, to receive grand base Being turned on and off for CER functions is performed after the related instruction stood, and the ABS updated according to macro base station is configured Information adjusts the sub-frame configuration of itself.

Each functional module that macro base station and micro-base station include is as shown in Figure 3.

For macro base station (Macro eNB), including CRE configuration modules, ABS configuration modules, eICIC Measure configuration module, UE states update module, scheduler subsystem module etc..For micro-base station (Pico eNB), Including CRE configuration modules, ABS configuration modules, eICIC measurement configuration module, UE states update module, Scheduler subsystem module etc..Macro base station can interact signaling message with micro-base station by X2 interface.

Because interfered cell (such as macro base station) is configured with after ABS, it is necessary to notify the disturbed small of correlation Area's (such as micro-base station).Therefore, ABS information exchanges can pass through the X2 interface backhaul signaling between base station Or operational management is with safeguarding (Operations Administration and Maintenance, OAM) entity Interfered cell is notified, so that interfered cell considers the information when dispatching UE.

Fig. 4 show it is provided in an embodiment of the present invention one kind under Macro-Pico networking scenes macro base station with it is micro- The process of signaling message is interacted between base station by X2 interface.In system operation, macro base station configuration After ABS, ABS configuration informations are sent to micro-base station, micro-base station is received after the ABS configuration informations, The subframe of itself is configured according to the ABS configuration informations, afterwards, micro-base station provides actual ABS Source service condition informs macro base station by ABS Status (state) IE, thinks that macro base station adjustment ABS matches somebody with somebody Reference is provided when putting.

With reference to each functional module in the macro base station shown in Fig. 3 to minizone provided in an embodiment of the present invention The method of interference coordination is more meticulously introduced.

(1) CRE configuration modules

CRE configuration modules to implement block diagram as shown in Figure 5.CRE configuration modules can be used for according to this The load of cell, determines the micro-base station for needing to switch CRE functional statuses in this cell.

In the module, two units can be included again：CRE open functions judging unit and CRE are closed Function-judging unit.

Wherein CRE open functions judging unit is used for：The load information of Microcell is obtained from X2 interface, and CRE deviants are obtained from OAM entities, so as to be integrated according to the load of this cell and the load of Microcell The first micro-base station for needing to open CRE functions in this cell is determined, also, when determination opens described first After the CRE functions of micro-base station, ABS configuration modules, eICIC measurement configuration modules and UE shapes are notified State update module.

As a kind of implementation, for example, opened by the unified CRE for triggering all reasons of micro-base station Open, so as to finally judge that micro-base station can open CRE functions by macro base station.It is preferred that micro-base station is to grand Base station triggers open the information field (Information Element, IE) used during the request of CRE functions For Invoke Indication (triggering is indicated), the content of the IE indicates macro base station only comprising an instruction This micro-base station needs to open CRE functions, it is impossible to provide other any information to macro base station.

For the implementation, the deterministic process of CRE functions is opened as shown in fig. 6, comprising the following steps that：

Whether S201, arrival macro base station judgement micro-base station open CRE cycle；

If S202, the Invoke Indication for receiving within the cycle transmission of at least one micro-base station, Step S203 is performed, otherwise terminates flow；

S203, determine whether the micro-base station activate ABS, if so, perform step S204, otherwise, hold Row step S206；

Here, the micro-base station refers mainly to send Invoke Indication micro-base station, can be one, Can be multiple.

S204, judge macrocell load whether be higher than default first threshold value (Load_Macro,High), if It is to perform step S205, otherwise, terminates flow；

Whether S205, the edge UE judged in macrocell load are higher than default second threshold value (Load_CRE,High), wherein, the cell that edge UE is with the micro-base station is covered is adjacent and belongs to macrocell UE, if so, then performing S206, otherwise terminate flow；

S206, determine that the micro-base station opens CRE functions, and perform step S207；

S207, notice ABS configuration modules and eICIC measurement configuration modules, are configured by the two modules The Microcell is notified to open CRE functions after ABS, to cause the micro-base station to open after CRE functions according to grand The ABS configurations of cell adjust the sub-frame configuration of itself.

As another implementation, for example, can also be that macro base station actively triggers the micro- base judged in this cell Whether stand needs to open CRE functions.For example, macro base station can periodically obtain each in this cell The load of Microcell, and count the load of this cell, and then by the load of this cell and default first Limit value is compared, and when the load of this cell is more than default first threshold value, also, is covered for this cell Each micro-base station in the range of lid, when it is determined that edge UE in adjacent this cell of cell covered with micro-base station When corresponding load is more than default second threshold value, it is to need to open CRE functions to determine the micro-base station First micro-base station.

CRE closing function judging units are used for：Load information from X2 interface acquisition Microcell, and from OAM entities obtain CRE deviants, so as to be integrated according to the load of this cell and the load of Microcell true Need to close the second micro-base station of CRE functions in this fixed cell, and when second micro- base is closed in determination After the CRE functions of standing, ABS configuration modules, eICIC measurement configuration modules and UE states are notified more New module.

The deterministic process of CRE functions is closed as shown in fig. 7, comprising the following steps that：

Whether S301, arrival macro base station judgement micro-base station close CRE cycle；

S302, the load information for obtaining all Microcells for having turned on CRE functions；

S303, judge this cell (i.e. macrocell) load whether be less than default 3rd threshold value (Load_Macro,Low), if so, performing step S304, otherwise, perform step S305；

S304, determination close the CRE functions for all micro-base stations for having turned on CRE functions；

S305, all micro-base stations for judging to have turned on CRE functions in this cell distinguish corresponding CRE regions Whether interior load sum is less than default 4th threshold value (Load_CRE,Low), if so, then performing step S304, otherwise, performs step S306；

S306, judge whether not traveled through all micro-base stations for having turned on CRE functions also, if so, Step S307 is then performed, otherwise, terminates flow；

That is, when all micro-base stations point for determining to have turned on CRE functions in step S305 in this cell Load sum in not corresponding CRE regions is more than default 4th threshold value (Load_CRE,Low) when, then Judged respectively for each micro-base station for having turned on CRE functions, CRE work(is had turned on until all The micro-base station of energy all judges to finish.

S307, next Microcell for having turned on CRE functions for not carrying out load judgment is handled, Detailed process is referring to step S308；

S308, judge the Microcell load whether be more than default 5th threshold value (Load_Pico,High), if It is to perform step S309, otherwise, performs step S310；

S309, the CRE functions of determining the closing Microcell, and continue executing with step S306；

The CRE functions of the Microcell are not closed in S310, determination, and continue executing with step S306.

(2) ABS configuration modules

ABS configuration modules to implement block diagram as shown in Figure 8.ABS configuration modules can be used for updating this The ABS configuration informations of cell, and the ABS configuration informations after renewal are sent to the micro-base station in this cell.

Specifically, ABS configuration modules receive determination the first micro-base station of unlatching of CRE configuration modules transmission The CRE functions of (wherein, the first micro-base station can be a micro-base station, or multiple micro-base stations) Or determine that (wherein, the second micro-base station can be a micro-base station to the second micro-base station of closing, or many Individual micro-base station) CRE functions message after, the load information of this cell and Microcell is obtained, using public affairs Formula (1) calculates ABS configuration densities, then, and ABS set and measurement subframe collection are obtained from OAM entities Close, and the ABS configuration densities of calculating are mapped to actual available ABS and configure, finally according to above-mentioned The ABS configurations of this cell of ABS config updates, the ABS of this cell is configured to avoid the signal of this cell Interference is produced to the signal of Microcell, wherein, ABS configuration informations include ABS Pattern, Measurement Subset.Finally, the ABS configuration informations after renewal are sent to by X2 interface needs to switch CRE The micro-base station of functional status, and the ABS configuration informations are sent to eICIC measurement configuration modules simultaneously, UE configuration handoff parameter and measurement sub-frame set of the configuration module for this cell are measured by eICIC, and will The ABS configuration informations are sent to scheduler subsystem module, are used to perform during scheduling decision.

(3) eICIC measures configuration module

EICIC measurement configuration modules to implement block diagram as shown in Figure 9.EICIC measurement configuration modules can For the UE configuration handoff parameters and measurement sub-frame set for this cell.

Specifically, according to CRE configuration modules export be turned on and off the Microcell list of CRE functions with And handoff parameter configures the handoff parameter of the UE in this cell.Also, exported according to ABS configuration modules ABS configuration informations for this cell UE configuration measurement sub-frame set, for example according to UE states update mould The state that the UE of block output is current is UE configuration measurement sub-frame sets, wherein, any UE is current State be for indicating state that the UE is this center of housing estate UE or for indicating that the UE is that this is small Area edge UE state.

(4) UE states update module

UE state update modules to implement block diagram as shown in Figure 10.The module main function is to judge this The state of UE in cell is center UE state or edge UE state.

For example can be UE state update modules receive the transmission of CRE configuration modules to be turned on and off certain micro- After the CRE functions of cell, the detection process to UE states is triggered.Specifically, UE states update module Configuration parameter can be obtained from OAM entities, the configuration parameter for example can be the UE for judging this cell Whether the condition for being edge UE, when satisfying the condition, determine the UE be this cell edge UE, it is no Then, the center UE that the UE is this cell is determined.After the current states of the UE to this cell are updated, The state of UE after renewal is sent to eICIC measurement configuration modules.

(5) scheduler subsystem module

The module is used to be directed to each UE, the ABS configuration informations sent according to ABS configuration modules, And the current states of the UE that UE states update module is sent, determine the UE on different sub frames Dispatching priority；

For can be used in each subframe being scheduled to UE, according to the tune of the difference UE in the subframe Priority is spent, the different UE are scheduled.

Wherein, when being scheduled to UE, the dispatching algorithm flow according to Figure 11 is carried out to subframe type Screening, so that it is determined that can be used in the subframe being scheduled to UE.Detailed process is as follows：

Firstly, for current subframe, the number of times of domain scheduling is 1 when setting it currently to run；

So as to which by setting scheduling times, without being scheduled judgement to the subframe again, scheduling can be improved Efficiency.

Secondly, whether be ABS if judging present sub-frame, if it is not, determining that present sub-frame is that can be used in pair The subframe that UE is scheduled, so as to be scheduled in the subframe to UE, otherwise, it determines present sub-frame To cannot be used for the subframe being scheduled to UE, terminate flow.

Wherein it is possible to which the ABS Pattern in the ABS configuration informations of ABS configuration modules transmission are true Whether the fixed subframe is ABS.After it is determined that present sub-frame is the subframe that can be used in being scheduled UE, When being scheduled in the subframe to UE, UE can be entered using time domain dispatching algorithm in complicated dispatching algorithm Row scheduling.

Above is the introduction of each functional module included for macro base station side, for micro-base station side, what it included The processing procedure of each functional module is similar with macro base station.The work(included below to the micro-base station shown in Fig. 3 Energy module is simply introduced.

After micro-base station receives the ABS configuration informations of macro base station transmission from X2 interface, in micro-base station ABS configuration modules are configured (bag to the subframe of this base station according to the ABS configuration informations of the transmission of macro base station Which subframe is included for ABS, which subframe is the normal subframe for being used to be scheduled UE), and determine Whether open or close the CRE functions of this base station.So that ABS configuration modules determination unlatching (or close Close) after the CRE functions of this base station, send for indicating disappearing for activation (or deactivation) CRE functions Cease and give CRE configuration modules, and send ABS configuration informations to eICIC measurement configuration modules and scheduling subsystem The module of system；CRE configuration modules are received for indicating disappearing for activation (or deactivation) CRE functions After breath, the CRE functions of unlatching (or closing) this base station, and will determine to open (or closing) originally The message of the CRE functions of base station is sent respectively to eICIC measurement configuration modules and UE states update mould Block；UE state update modules receive the message for the CRE functions of determining to open (or closing) this base station Afterwards, the state to UE is counted, and state (center UE or edge UE) current UE is sent out Give eICIC measurement configuration modules and scheduler subsystem；EICIC measurements configuration module is finally completed UE The configuration of handoff parameter and the configuration for measuring sub-frame set；Finally, scheduler subsystem is scheduled to UE When, with reference to the current state of ABS configuration informations and UE, UE is scheduled.

Referring to Figure 12, the embodiments of the invention provide a kind of device of Inter-Cell Interference Coordination, including：

Determining unit 11, for the load according to this cell, determines to need switching coverage to expand in this cell Open up the micro-base station of CRE functional statuses；

Dispensing unit 12, the scheduling for updating this cell limits subframe ABS configuration informations, and will update ABS configuration informations afterwards are sent to the micro-base station；Wherein, need to switch CRE work(in described cell The micro-base station of energy state, including need to open the first micro-base station of CRE functions in this cell, and/or, this The second micro-base station of closing CRE functions is needed in cell.

The device, for example, can be base station.

It is preferred that load of the determining unit 11 according to this cell, determines to need to open CRE in this cell During the first micro-base station of function, specifically for：

The load of this cell is compared with default first threshold value, this cell is determined according to comparative result Inside need the first micro-base station of unlatching CRE functions.

It is preferred that the determining unit 11 determines to need to open CRE functions in this cell according to comparative result The first micro-base station when, specifically for：

When the load of this cell is more than default first threshold value, also, for every in this cell coverage area One micro-base station, when it is determined that the corresponding load of edge customer equipment UE is more than default second threshold value, really The fixed micro-base station is the first micro-base station for needing to open CRE functions, wherein, the edge UE is micro- base It is outside the cell of covering of standing, adjacent and belong to the UE of this cell with the cell of micro-base station covering.

It is preferred that load of the determining unit 11 according to this cell, determines that this cell needs to close CRE During the second micro-base station of function, specifically for：

When the load of this cell is less than default three threshold value, determine to have turned on CRE work(in this cell All micro-base stations of energy are the second micro-base station for needing to close CRE functions.

It is preferred that load of the determining unit 11 according to this cell, determines to need to close CRE in this cell During the second micro-base station of function, it is additionally operable to：

When the load of this cell is more than or equal to default 3rd threshold value, and CRE is had turned in this cell The load sum that all micro-base stations of function are distinguished in corresponding CRE regions is less than default 4th threshold value When, it is need to close CRE functions second to determine all micro-base stations that CRE functions are had turned in this cell Micro-base station.

It is preferred that load of the determining unit 11 according to this cell, determines to need to close CRE in this cell During the second micro-base station of function, it is additionally operable to：

The load in corresponding CRE regions is distinguished when all micro-base stations that CRE functions are had turned in this cell Sum is more than or equal to default 4th threshold value, also, has turned on CRE work(for each in this cell The micro-base station of energy, when it is determined that the load of the cell of micro-base station covering is more than default five threshold value, really The fixed micro-base station is the second micro-base station for needing to close CRE functions.

It is preferred that when the dispensing unit 12 updates the ABS configuration informations of this cell, specifically for：

The load information of the load information of this cell and the cell of first micro-base station covering is obtained, and is adopted ABS configuration densities are calculated with equation below：

ABS_Density=(L₁/P×α₁)/(L₁/P×α₁+L_2,1×α₂+L_2,2)

Wherein, L₁The load in the corresponding CRE regions of first micro-base station is represented, P represents described first micro- base The number stood, α₁Represent the corresponding load weights in CRE regions, L_2,1Represent UE correspondences in center in this cell Load, L_2,2Represent the corresponding loads of this cell inward flange UE, α₂Represent UE correspondences in center in this cell Load weights；

According to the ABS configuration densities, the ABS configuration informations of this cell are updated.

It is preferred that after the scheduling limitation subframe ABS configuration informations of this cell of the renewal of dispensing unit 12, It is additionally operable to：

Handoff parameter is configured for the UE of this cell, also, according to the ABS configuration informations after the renewal, Sub-frame set is measured for UE configurations, wherein, the handoff parameter, which includes this cell, to be needed to switch CRE The corresponding CRE deviants of micro-base station of functional status.

It is preferred that before the dispensing unit 12 is UE configuration measurement sub-frame sets, being additionally operable to： The current state of UE in this cell is obtained, state current UE described in any of which is for indicating this UE is center UE state or for indicating state that the UE is this cell inward flange UE in this cell；

The dispensing unit 12, according to the ABS configuration informations after the renewal, is the UE configurations measurement During sub-frame set, specifically for：

For each UE, according to the current states of the UE, and the ABS configurations after the renewal Information, for UE configuration measurement sub-frame sets.

It is preferred that the device also include scheduling unit 13, the scheduling unit 13 specifically for：

For each UE, according to the ABS configuration informations after the renewal, and the UE current State, determines the dispatching priorities of the UE on different sub frames；

For can be used in each subframe being scheduled to UE, according to the tune of the difference UE in the subframe Priority is spent, the different UE are scheduled.

It is preferred that the scheduling unit 13 is determined to for being scheduled to UE in the following way Subframe：

For present sub-frame, if according to the ABS configuration informations after the renewal, it is not ABS to determine the subframe, Then determine that present sub-frame is the subframe that can be used in being scheduled UE.

It is understood that the determining unit 11 described in the present apparatus can for example include it is the above CRE configuration modules, the dispensing unit 12 for example can include the above ABS configuration modules, EICIC measurements configuration module, UE state update modules, the scheduling unit 13 can for example be included above Described in scheduler subsystem unit.

In the embodiment of the present invention, above-mentioned each function list can be realized by entity devices such as specific hardware processors Member.

It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or meter Calculation machine program product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or knot The form of embodiment in terms of conjunction software and hardware.Wherein wrapped one or more moreover, the present invention can be used Containing computer usable program code computer-usable storage medium (include but is not limited to magnetic disk storage and Optical memory etc.) on the form of computer program product implemented.

The present invention is with reference to the production of method according to embodiments of the present invention, equipment (system) and computer program The flow chart and/or block diagram of product is described.It should be understood that can by computer program instructions implementation process figure and / or each flow and/or square frame in block diagram and the flow in flow chart and/or block diagram and/ Or the combination of square frame.These computer program instructions can be provided to all-purpose computer, special-purpose computer, insertion Formula processor or the processor of other programmable data processing devices are to produce a machine so that pass through and calculate The instruction of the computing device of machine or other programmable data processing devices is produced for realizing in flow chart one The device for the function of being specified in individual flow or multiple flows and/or one square frame of block diagram or multiple square frames.

These computer program instructions, which may be alternatively stored in, can guide computer or the processing of other programmable datas to set In the standby computer-readable memory worked in a specific way so that be stored in the computer-readable memory Instruction produce include the manufacture of command device, the command device realization in one flow or multiple of flow chart The function of being specified in one square frame of flow and/or block diagram or multiple square frames.

These computer program instructions can be also loaded into computer or other programmable data processing devices, made Obtain and perform series of operation steps on computer or other programmable devices to produce computer implemented place Reason, so that the instruction performed on computer or other programmable devices is provided for realizing in flow chart one The step of function of being specified in flow or multiple flows and/or one square frame of block diagram or multiple square frames.

Obviously, those skilled in the art can carry out various changes and modification without departing from this hair to the present invention Bright spirit and scope.So, if the present invention these modifications and variations belong to the claims in the present invention and Within the scope of its equivalent technologies, then the present invention is also intended to comprising including these changes and modification.

Claims (22)

1. a kind of method of Inter-Cell Interference Coordination, it is characterised in that this method includes：

According to the load of this cell, determine to need to switch coverage extension CRE functional statuses in this cell Micro-base station；

The scheduling limitation subframe ABS configuration informations of this cell are updated, and by the ABS configuration informations after renewal It is sent to the micro-base station；Wherein, the micro-base station of switching CRE functional statuses is needed in described cell, The first micro-base station including needing unlatching CRE functions in this cell, and/or, need to close CRE in this cell Second micro-base station of function.

2. according to the method described in claim 1, it is characterised in that according to the load of this cell, it is determined that The first micro-base station of unlatching CRE functions is needed in this cell, is specifically included：

The load of this cell is compared with default first threshold value, this cell is determined according to comparative result Inside need the first micro-base station of unlatching CRE functions.

3. method according to claim 2, it is characterised in that this cell is determined according to comparative result The first micro-base station of unlatching CRE functions is inside needed, is specifically included：

When the load of this cell is more than default first threshold value, also, for every in this cell coverage area One micro-base station, when it is determined that the corresponding load of edge customer equipment UE is more than default second threshold value, really The fixed micro-base station is the first micro-base station for needing to open CRE functions, wherein, the edge UE is micro- base It is outside the cell of covering of standing, adjacent and belong to the UE of this cell with the cell of micro-base station covering.

4. according to the method described in claim 1, it is characterised in that according to the load of this cell, it is determined that This cell needs to close the second micro-base station of CRE functions, specifically includes：

When the load of this cell is less than default three threshold value, determine to have turned on CRE work(in this cell All micro-base stations of energy are the second micro-base station for needing to close CRE functions.

5. method according to claim 4, it is characterised in that according to the load of this cell, it is determined that The second micro-base station of closing CRE functions is needed in this cell, in addition to：

When the load of this cell is more than or equal to default 3rd threshold value, and CRE is had turned in this cell The load sum that all micro-base stations of function are distinguished in corresponding CRE regions is less than default 4th threshold value When, it is need to close CRE functions second to determine all micro-base stations that CRE functions are had turned in this cell Micro-base station.

6. method according to claim 5, it is characterised in that according to the load of this cell, it is determined that The second micro-base station of closing CRE functions is needed in this cell, in addition to：

The load in corresponding CRE regions is distinguished when all micro-base stations that CRE functions are had turned in this cell Sum is more than or equal to default 4th threshold value, also, has turned on CRE work(for each in this cell The micro-base station of energy, when it is determined that the load of the cell of micro-base station covering is more than default five threshold value, really The fixed micro-base station is the second micro-base station for needing to close CRE functions.

7. according to the method described in claim 1, it is characterised in that the ABS for updating this cell matches somebody with somebody confidence Breath, is specifically included：

The load information of the load information of this cell and the cell of first micro-base station covering is obtained, and is adopted ABS configuration densities are calculated with equation below：

ABS_Density=(L₁/P×α₁)/(L₁/P×α₁+L_2,1×α₂+L_2,2)

Wherein, L₁The load in the corresponding CRE regions of first micro-base station is represented, P represents described first micro- base The number stood, α₁Represent the corresponding load weights in the CRE regions, L_2,1Represent center UE in this cell Corresponding load, L_2,2Represent the corresponding loads of this cell inward flange UE, α₂Represent center UE in this cell Corresponding load weights；

According to the ABS configuration densities, the ABS configuration informations of this cell are updated.

8. according to the method described in claim 1, it is characterised in that the ABS for updating this cell matches somebody with somebody confidence After breath, this method also includes：

Handoff parameter is configured for the UE of this cell, also, according to the ABS configuration informations after the renewal, Sub-frame set is measured for UE configurations, wherein, the handoff parameter, which includes this cell, to be needed to switch CRE The corresponding CRE deviants of micro-base station of functional status.

9. method according to claim 8, it is characterised in that for UE configuration measurement subframes Before set, this method also includes：Obtain the current state of UE in this cell, UE described in any of which Current state is for indicating that the UE is center UE state or for indicating the UE in this cell For this cell inward flange UE state；

It is the UE configurations measurement sub-frame set, specific bag according to the ABS configuration informations after the renewal Include：

For each UE, according to the current states of the UE, and the ABS configurations after the renewal Information, for UE configuration measurement sub-frame sets.

10. method according to claim 9, it is characterised in that this method also includes：

For each UE, according to the ABS configuration informations after the renewal, and the UE current State, determines the dispatching priorities of the UE on different sub frames；

For can be used in each subframe being scheduled to UE, according to the tune of the difference UE in the subframe Priority is spent, the different UE are scheduled.

11. method according to claim 10, it is characterised in that be determined in the following way For the subframe being scheduled to UE：

For present sub-frame, if according to the ABS configuration informations after the renewal, it is not ABS to determine the subframe, Then determine that present sub-frame is the subframe that can be used in being scheduled UE.

12. a kind of device of Inter-Cell Interference Coordination, it is characterised in that the device includes：

Determining unit, for the load according to this cell, determines to need to switch coverage extension in this cell The micro-base station of CRE functional statuses；

Dispensing unit, the scheduling for updating this cell limits subframe ABS configuration informations, and by after renewal ABS configuration informations be sent to the micro-base station；Wherein, need to switch CRE functions in described cell The micro-base station of state, including need to open the first micro-base station of CRE functions in this cell, and/or, this is small The second micro-base station of closing CRE functions is needed in area.

13. device according to claim 12, it is characterised in that the determining unit is small according to this The load in area, when determining to need to open in this cell the first micro-base station of CRE functions, specifically for：

The load of this cell is compared with default first threshold value, this cell is determined according to comparative result Inside need the first micro-base station of unlatching CRE functions.

14. device according to claim 13, it is characterised in that the determining unit is according to comparing When as a result determining to need to open in this cell the first micro-base station of CRE functions, specifically for：

When the load of this cell is more than default first threshold value, also, for every in this cell coverage area One micro-base station, when it is determined that the corresponding load of edge customer equipment UE is more than default second threshold value, really The fixed micro-base station is the first micro-base station for needing to open CRE functions, wherein, the edge UE is micro- base It is outside the cell of covering of standing, adjacent and belong to the UE of this cell with the cell of micro-base station covering.

15. device according to claim 12, it is characterised in that the determining unit is small according to this The load in area, when determining that this cell needs to close the second micro-base station of CRE functions, specifically for：

When the load of this cell is less than default three threshold value, determine to have turned on CRE work(in this cell All micro-base stations of energy are the second micro-base station for needing to close CRE functions.

16. device according to claim 15, it is characterised in that the determining unit is small according to this The load in area, when determining to need to close in this cell the second micro-base station of CRE functions, is additionally operable to：

When the load of this cell is more than or equal to default 3rd threshold value, and CRE is had turned in this cell The load sum that all micro-base stations of function are distinguished in corresponding CRE regions is less than default 4th threshold value When, it is need to close CRE functions second to determine all micro-base stations that CRE functions are had turned in this cell Micro-base station.

17. device according to claim 16, it is characterised in that the determining unit is small according to this The load in area, when determining to need to close in this cell the second micro-base station of CRE functions, is additionally operable to：

The load in corresponding CRE regions is distinguished when all micro-base stations that CRE functions are had turned in this cell Sum is more than or equal to default 4th threshold value, also, has turned on CRE work(for each in this cell The micro-base station of energy, when it is determined that the load of the cell of micro-base station covering is more than default five threshold value, really The fixed micro-base station is the second micro-base station for needing to close CRE functions.

18. device according to claim 12, it is characterised in that it is small that the dispensing unit updates this During the ABS configuration informations in area, specifically for：

The load information of the load information of this cell and the cell of first micro-base station covering is obtained, and is adopted ABS configuration densities are calculated with equation below：

ABS_Density=(L₁/P×α₁)/(L₁/P×α₁+L_2,1×α₂+L_2,2)

Wherein, L₁The load in the corresponding CRE regions of first micro-base station is represented, P represents described first micro- base The number stood, α₁Represent the corresponding load weights in the CRE regions, L_2,1Represent center UE in this cell Corresponding load, L_2,2Represent the corresponding loads of this cell inward flange UE, α₂Represent center UE in this cell Corresponding load weights；

According to the ABS configuration densities, the ABS configuration informations of this cell are updated.

19. device according to claim 12, it is characterised in that it is small that the dispensing unit updates this After the scheduling limitation subframe ABS configuration informations in area, it is additionally operable to：

Handoff parameter is configured for the UE of this cell, also, according to the ABS configuration informations after the renewal, Sub-frame set is measured for UE configurations, wherein, the handoff parameter, which includes this cell, to be needed to switch CRE The corresponding CRE deviants of micro-base station of functional status.

20. device according to claim 19, it is characterised in that the dispensing unit is the UE Before configuration measurement sub-frame set, it is additionally operable to：Obtain the current state of UE in this cell, any of which The state current UE is for indicating that the UE is center UE state or for referring in this cell Show the state that the UE is this cell inward flange UE；

The dispensing unit, according to the ABS configuration informations after the renewal, is the UE configurations measurement subframe During set, specifically for：

For each UE, according to the current states of the UE, and the ABS configurations after the renewal Information, for UE configuration measurement sub-frame sets.

21. device according to claim 20, it is characterised in that the device also includes scheduling unit, The scheduling unit specifically for：

For each UE, according to the ABS configuration informations after the renewal, and the UE current State, determines the dispatching priorities of the UE on different sub frames；

For can be used in each subframe being scheduled to UE, according to the tune of the difference UE in the subframe Priority is spent, the different UE are scheduled.

22. device according to claim 21, it is characterised in that the scheduling unit is using as follows Mode is determined to the subframe for being scheduled to UE：

For present sub-frame, if according to the ABS configuration informations after the renewal, it is not ABS to determine the subframe, Then determine that present sub-frame is the subframe that can be used in being scheduled UE.