CN105282849B - A kind of dispatching method and device - Google Patents
A kind of dispatching method and device Download PDFInfo
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- CN105282849B CN105282849B CN201410318230.2A CN201410318230A CN105282849B CN 105282849 B CN105282849 B CN 105282849B CN 201410318230 A CN201410318230 A CN 201410318230A CN 105282849 B CN105282849 B CN 105282849B
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Abstract
The present invention relates to field of communication technology more particularly to a kind of dispatching method and device, determines under what circumstances to solve the problems, such as that macro base station can not be determined based on existing process and send ABS configuration information.A kind of dispatching method provided includes: the load recalls information that ABS configuration information is sent for triggering first base station for receiving the second base station and sending；All UE that business transmission is currently being carried out in the case where determining first base station covering are higher than first threshold to the first resource utilization rate of the local resource under first base station covering, and after the lower all cell edge UE for currently carrying out business transmission of first base station covering are higher than second threshold to the Secondary resource utilization rate of the local resource under first base station covering, ABS configuration information is sent to the second base station, indicate that the second base station carries out CRE, and scheduling carries out the cell edge UE after CRE in the ABS of ABS configuration information instruction.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of dispatching methods and device.
Background technique
With the continuous expansion of long term evolution (Long Term Evolution, LTE) network size, the communication technology, equipment
Continuous development, new networking form comes into being.Heterogeneous network is that such as micro- base is introduced in macro base station (Macrocell) network
Stand (Microcell), the low power nodes such as femto base station (Picocell) and femto base station (Femtocell) (Low Power
Node, LPN) the networking form that is formed afterwards.
In order to promote the ability that LPN in heterogeneous network absorbs user, researcher proposes cell range extension (Cell
Range Expansion, CRE) concept.CRE allows user to access LPN in the case where received signal power is relatively low, from
And LPN can be made to share more network loads, to improve network capacity, eliminate blind spot, improve in-door covering and promote user
Experience.
Since LTE uses identical networking, the introducing of heterogeneous network means the intervention of more inter-frequency interference cells.CRE makes
LPN absorbs many Cell Edge User, also means that the power of this certain customers reception LPN signal is lower；Meanwhile by
It is larger in downlink interference of the macro base station to the user for accessing LPN by CRE, therefore, pass through the cell edge use that CRE accesses LPN
The Signal to Interference plus Noise Ratio (Signal to Interference plus Noise Ratio, SINR) of family reception signal
Lower, the Traffic Channel of user, even control channel all can be by the strong jammings of macro base station.
In order to reduce the co-channel interference in heterogeneous network, enhancement type district interference coordination (enhanced is introduced in LTE
Inter-Cell Interference Coordination, eICIC) technology.EICIC introduces almost blank in the time domain
The concept of frame (Almost Blank Subframe, ABS) reduces interference to realize that time domain is coordinated.EICIC passes through small in interference
ABS subframe is configured in area's (cell under such as macro base station covering), and is made if interfered cell (cell under above-mentioned LPN covering)
It is to be provided business by the user of strong interference (such as Cell Edge User) in this cell, to realize with these ABS subframes
The coordination of inter-cell interference.
It provides to communicate between macro base station and LPN by X2 interface in R10.LPN sends load recalls information to macro base station
(Load Information:Invoke), triggering macro base station carry out ABS configuration；Macro base station passes through abs mode information (ABS
Information:ABS Pattern Info) to LPN send ABS configuration information；Macro base station initiates resource status request to LPN
(Resource status request) indicates LPN periodic feedback ABS load condition；LPN is updated by ABS state
(Resource status update:ABS status) message feedback ABS load condition；Macro base station is by initiating ABS to LPN
Load information (Load information:ABS information), instruction LPN update ABS configuration information.
Above-mentioned process is only defined by which information relevant with ABS of X2 interface interaction between macro base station and LPN, not
There is the scheme provided in specific implementation.Macro base station can not be determined based on existing process and determine under what circumstances and send ABS
Configuration information.
Summary of the invention
The embodiment of the present invention provides a kind of dispatching method and device, can not be true based on existing process to solve macro base station
Fixed the problem of determining under what circumstances and sending ABS configuration information.
A kind of dispatching method provided in an embodiment of the present invention includes:
Receive the load tune that almost blank subframe ABS configuration information is sent for triggering first base station of the second base station transmission
Use information；
It determines that the first base station covering is lower and is currently carrying out all user equipment (UE)s of business transmission to described first
Business transmission is currently being carried out under the first resource utilization rate and first base station covering of local resource under the covering of base station
All cell edge UE to the first base station covering under local resource Secondary resource utilization rate；
Determine the first resource utilization rate be higher than first threshold, and the Secondary resource utilization rate be higher than second threshold
Afterwards, ABS configuration information is sent to second base station；The ABS configuration information is used to indicate second base station and carries out cell
Range extends CRE, and is scheduled in the ABS of ABS configuration information instruction to the cell edge UE after progress CRE.
Optionally, the local resource includes Physical Resource Block PRB；The determining first resource utilization rate and Secondary resource
Utilization rate, comprising:
Determine the minimum PRB demand number of the lower each UE for currently carrying out business transmission of first base station covering；
By the minimum PRB demand number of the lower all UE for currently carrying out business transmission of first base station covering it
With the ratio of PRB sum being able to use with the cell of first base station covering is determined as the first resource utilization rate；And
By the minimum PRB demand of the lower all cell edge UE for currently carrying out business transmission of first base station covering
The ratio of the sum of number, the PRB sum being able to use with the cell of first base station covering is determined as the Secondary resource benefit
With rate.
Optionally, it determines according to the following formula and the minimum of any non-UE for ensureing bit rate non-GBR business is used
PRB demand number QPRB:
Wherein, VminFor the minimum guarantee rate of the setting non-GBR business, NPRBSetting non-is being used for the UE
The PRB number of actual overhead when GBR traffic, W are goodput of UE when using setting non-GBR business.
Optionally, after sending ABS configuration information to second base station, further includes:
Resource status is sent to second base station and requests Resource status request message, indicates described the
Two base station periodic feedback information resources utilization rates；The information resources utilization rate is to cover after second base station carries out CRE
Under, currently carrying out all cell edge UE of business transmission to the resource of the local resource under the covering of second base station
Utilization rate；
According to the information resources utilization rate of second base station feedback, and the current first resource utilizes
Rate adjusts ABS configuration information.
Optionally, the method also includes:
When determining the first resource utilization rate lower than third threshold value and/or the information resources utilization rate lower than the 4th
When threshold value, cancel ABS configuration.
Another embodiment of the present invention provides a kind of dispatching method include:
It determines that the covering of the second base station is lower and is currently carrying out all user equipment (UE)s of business transmission to second base station
4th resource utilization of the local resource under covering；
After determining that the 4th resource utilization is lower than the 5th threshold value, load recalls information is sent to first base station, with
It triggers the first base station and sends almost blank subframe ABS configuration information；
Cell range is carried out according to the ABS configuration information that the first base station is sent and extends CRE, and is configured in the ABS
In the ABS of information instruction, the cell edge UE after progress CRE is scheduled.
A kind of dispatching device provided in an embodiment of the present invention includes:
Receiving module, almost blank subframe ABS matches the first base station transmission that is used to trigger for receiving the transmission of the second base station
The load recalls information of confidence breath；
Determining module, for determining the lower all user equipmenies for currently carrying out business transmission of the first base station covering
UE descends currently the first resource utilization rate of the local resource under first base station covering and first base station covering
Secondary resource utilization rate of all cell edge UE of carry out business transmission to the local resource under first base station covering；
Sending module, for determining that the first resource utilization rate is higher than first threshold in the determining module, and it is described
After Secondary resource utilization rate is higher than second threshold, ABS configuration information is sent to second base station；The ABS configuration information is used
Cell range is carried out in instruction second base station and extends CRE, and to progress CRE in the ABS of ABS configuration information instruction
Cell edge UE afterwards is scheduled.
Another embodiment of the present invention provides a kind of dispatching device include:
Determining module, for determining the lower all user equipment (UE)s pair for currently carrying out business transmission of the second base station covering
4th resource utilization of the local resource under the second base station covering；
Sending module, for determining the 4th resource utilization lower than after the 5th threshold value, to the in the determining module
One base station sends load recalls information, sends almost blank subframe ABS configuration information to trigger the first base station；
Scheduler module, the ABS configuration information for being sent according to the first base station carry out cell range and extend CRE, and
In the ABS of ABS configuration information instruction, the cell edge UE after progress CRE is scheduled.
In the embodiment of the present invention, first base station is after the load recalls information for receiving the transmission of the second base station, described in determination
The lower all UE for currently carrying out business transmission of first base station covering to the local resource under first base station covering the
One resource utilization and the lower all cell edge UE for currently carrying out business transmission of first base station covering are to described the
The Secondary resource utilization rate of local resource under the covering of one base station；In determining first resource utilization rate and Secondary resource utilization rate
After respectively greater than corresponding threshold value, almost blank subframe ABS configuration information is sent to the second base station.That is, the present invention is real
It applies example and gives the specific implementation that first base station sends ABS configuration information, existing stream can not be based on by solving macro base station
Journey determines the problem of determining under what circumstances and sending ABS configuration information.Also, the embodiment of the present invention is used, it can be effective
The co-channel interference for reducing neighboring interval, realizes the interference coordination of minizone.
Detailed description of the invention
Fig. 1 is the dispatching method flow chart that the embodiment of the present invention one provides；
Fig. 2 is dispatching method flow chart provided by Embodiment 2 of the present invention；
Fig. 3 is the dispatching method flow chart that the embodiment of the present invention three provides；
Fig. 4 is the dispatching device structural schematic diagram that the embodiment of the present invention four provides；
Fig. 5 is the dispatching device structural schematic diagram that the embodiment of the present invention five provides.
Specific embodiment
The embodiment of the present invention is applied to the heterogeneous network system including macro base station, low power nodes LPN and user equipment (UE)
In.In heterogeneous network system, macro base station is in order to reduce to micro-base station (Microcell), femto base station (Picocell) and milli
The annoyance level of cell edge UE under the low power nodes LPN such as femto base station (Femtocell) covering, needs to configure ABS.This
In, ABS full name in English is Almost Blank Subframe, macro base station not transmission of control signals and data-signal in ABS,
Only transmission of reference signals, therefore, those skilled in the art put it into " almost blank subframe ".LPN is dispatched in ABS under covering
Cell edge UE, realize interference coordination.
Process that is determining the embodiment of the invention provides first base station and sending ABS configuration information, main inventive thought are as follows:
First base station after the load recalls information for receiving the transmission of the second base station, determine first base station covering it is lower it is current into
First resource utilization rate and first base of all UE of industry business transmission to the local resource under first base station covering
The lower all cell edge UE for currently carrying out business transmission of covering of standing are to the local resource under first base station covering
Secondary resource utilization rate；According to determining first resource utilization rate and Secondary resource utilization rate, judge whether to need for this second
Base station configures almost blank subframe ABS.First base station in the embodiment of the present invention specifically can be the macro base station in heterogeneous network,
Second base station specifically can be the low power nodes LPN in heterogeneous network.As it can be seen that the embodiment of the present invention gives first base station hair
The specific implementation for sending ABS configuration information, solving macro base station can not be true under what circumstances based on the determination of existing process
The problem of determining and sending ABS configuration information.Also, the embodiment of the present invention is used, the co-channel interference of neighboring interval can be effectively reduced,
Realize the interference coordination of minizone.
The embodiment of the present invention is described in further detail with reference to the accompanying drawings of the specification.
As shown in Figure 1, the dispatching method flow chart provided for the embodiment of the present invention one, comprising:
S101: first base station receives the load that ABS configuration information is sent for triggering first base station that the second base station is sent
Recalls information；
In specific implementation, the second base station is currently carrying out all UE of business transmission to this in the case where determining itself covering
The resource utilization of local resource under the covering of second base station can send load to first base station and call letter lower than after preset value
It ceases (Load Information:Invoke), triggers first base station as it and configure ABS, and send ABS configuration information.
S102: the first base station determines the lower all users for currently carrying out business transmission of the first base station covering
Equipment UE is to current under the first resource utilization rate and first base station covering of the local resource under first base station covering
All cell edge UE of the business of progress transmission utilize the Secondary resource of the local resource under first base station covering
Rate.
In the step, first base station is after the load recalls information for receiving the transmission of the second base station, for the institute under covering
There is UE, determine first resource utilization rate, first resource utilization rate here is the money of the entire cell under first base station covering
Source utilization rate.First base station determines Secondary resource utilization rate also directed to all cell edge UE under covering, the second money here
Source utilization rate is resource utilization of all cell edge UE under first base station covering to entire cell.
In the specific implementation process, first base station can will report A3 event (adjacent cell service quality is better than serving cell
Service quality when, triggering A3 event reports) UE be determined as cell edge UE.
S103: the first base station is determining that the first resource utilization rate is higher than first threshold, and the Secondary resource
After utilization rate is higher than second threshold, ABS configuration information is sent to second base station；The ABS configuration information is used to indicate institute
It states the second base station and carries out cell range extension CRE, and to the cell after progress CRE in the ABS of ABS configuration information instruction
Edge UE is scheduled.
In the step, whether first resource utilization rate and Secondary resource utilization rate that first base station judgment step S102 is determined
All it is higher than corresponding preset value and if the determination result is YES then illustrates the current overload of first base station, and cell side
Edge UE heavier loads caused by first base station, then at this moment, first base station configuration almost blank subframe ABS, make the second base station into
Row cell range extends CRE, and scheduling carries out the cell edge UE after CRE in ABS.Under normal circumstances, after carrying out CRE here
Cell edge UE that is to say cell range extension the region CRE in UE.
In S103, the ABS that is configured can be preset in the ABS configuration information that first base station is sent, can also
To be first base station according to current first resource utilization rate setting.Specifically, first base station can by X2 interface signaling,
Abs mode information (ABS Information:ABS Pattern Info) is sent to the second base station, the ABS Pattern
Info is for notifying the second base station ABS configuration information, wherein the corresponding pattern of all subframes in ABS Pattern Info
Being worth at least one is not 0.
In above-mentioned S102, first base station is it needs to be determined that first resource utilization rate and Secondary resource utilization rate；In the present invention
Under the optional embodiment of embodiment, above-mentioned local resource specifically can be Physical Resource Block (Physical Resource
Block, PRB), at this moment, first base station determines that first resource utilization rate and the mode of Secondary resource utilization rate specifically may is that
Determine the minimum PRB demand number of the lower each UE for currently carrying out business transmission of first base station covering；
By the minimum PRB demand number of the lower all UE for currently carrying out business transmission of first base station covering it
With the ratio of PRB sum being able to use with the cell of first base station covering is determined as the first resource utilization rate；And
By the minimum PRB demand of the lower all cell edge UE for currently carrying out business transmission of first base station covering
The ratio of the sum of number, the PRB sum being able to use with the cell of first base station covering is determined as the Secondary resource benefit
With rate.
Under above embodiment, first base station is it needs to be determined that currently carrying out the minimum of each UE of business transmission
PRB demand number；For ensureing bit rate (Guranteed Bit Rate, GBR) business, base station is usually according to the type industry
The guarantee rate-allocation resource of business, therefore, the PRB number of the type business actual overhead can be considered the type business
Minimum PRB demand number.And for non-guarantee bit rate (non-GBR) business, base station can generally surpass for the resource of its distribution
The minimum resources demand of the type business out, therefore, the PRB number of the type business actual overhead are generally larger than the type industry
The minimum PRB demand number of business.In order to more realistically reflect cell load, the resource utilization in the embodiment of the present invention is
Meet the PRB utilization rate of service quality (Quality of Service, QoS) Minimum requirements of user.It specifically, can basis
Following formula determines the minimum PRB demand number Q that the UE of any non-GBR business is usedPRB:
Wherein, VminFor the minimum guarantee rate of the setting non-GBR business, NPRBSetting non-is being used for the UE
The PRB number of actual overhead when GBR traffic, W are goodput of UE when using setting non-GBR business.
It should be noted that any UE in cell may use multiple business simultaneously, then determining that the UE's is minimum
When PRB demand number, need for the corresponding minimum PRB demand number of this multiple business to be added.
In above-mentioned implementation process it is stated that, in S103, the ABS that is configured in the ABS configuration information that first base station is sent
It can be also possible to what first base station was set according to current first resource utilization rate to be preset.Either set in advance
Fixed or first base station is set according to current first resource utilization rate, and first base station can send ABS configuration
Information and then situation of change according to current network environment, are adjusted the ABS configuration information.Specific implementation process is such as
Under:
The first base station is after sending ABS configuration information to second base station, further includes:
The first base station sends resource status request Resource status request to second base station and disappears
Breath indicates the second base station periodic feedback information resources utilization rate；The information resources utilization rate is second base station
All cell edge UE under covering after progress CRE, currently carrying out business transmission are under the covering of second base station
The resource utilization of local resource；
The first base station is according to the information resources utilization rate of second base station feedback, and current described the
One resource utilization adjusts ABS configuration information.
In the specific implementation process, first base station sends Resource status request message to the second base station, the
Two base stations after receiving Resource status request message, periodically determine and feedback extensions after cell in when
The information resources utilization rate of the preceding all cell edge UE for carrying out business transmission.In the specific implementation process, the second base station
It can will report the UE of A3 event (when adjacent cell service quality is better than the service quality of serving cell, triggering A3 event is reported)
It is determined as cell edge UE.In actual implementation, the cell edge UE after the second base station progress CRE is actually the region CRE
UE in (cell range of extension).Second base station specifically can update (Resource status by ABS state
Update:ABS status) message feedback information resources utilization rate.First base station is sharp according to the information resources of the second base station feedback
With rate and the first resource utilization rate of this cell, ABS configuration information is adjusted.For example, first base station can be described
After one resource utilization is lower than some threshold value L1, more ABS are configured, are greater than some threshold value L2 in the first resource utilization rate
Afterwards, the ABS of configuration is reduced.Meanwhile the information resources utilization rate of all adjacent second base station feedbacks can be added by first base station,
Obtain the information resources utilization rate of all adjacent second base stations and value, according to this and value adjustment ABS configuration, for example, can set
It sets and different corresponds to a kind of ABS configuration with value range.
In the embodiment of the present invention, since first base station needs to sacrifice the Internet resources (ABS subframe) of itself for the second base
Stand scheduling edge UE, is affected to first base station handling capacity, therefore, in order to reduce configuration ABS to first base station handling capacity
It influences, ABS configuration can be cancelled in a period of time for meeting the following conditions:
The first resource utilization rate is lower than third threshold value；The information resources utilization rate is lower than the 4th threshold value.
Cancelling ABS with postponing, the second base station can restore original cell coverage area.
Based on the same inventive concept, second embodiment of the present invention provides the dispatching methods based on the second base station side, specific real
It is corresponding to grant above-described embodiment, repeats place, repeats no more.
As shown in Fig. 2, being dispatching method flow chart provided by Embodiment 2 of the present invention, comprising:
S201: the second base station determines that the covering of the second base station is lower and is currently carrying out all UE of business transmission to described second
4th resource utilization of the local resource under the covering of base station；
In the step, the second base station is for all UE for currently carrying out business transmission in the cell of itself covering, really
Fixed 4th resource utilization.Here the 4th resource utilization is the utilization of resources of the entire cell under the covering of the second base station
Rate.
S202: it is sent out after determining that the 4th resource utilization is lower than the 5th threshold value to first base station second base station
Load recalls information is sent, sends almost blank subframe ABS configuration information to trigger the first base station；
In the step, the second base station is determining the 4th resource utilization lower than the cell for after preset value, determining itself covering
More UE can be accommodated, therefore load can be sent to first base station and call (Load Information:Invoke) message,
It triggers first base station and configures ABS for it, and send ABS configuration information.
S203: second base station carries out cell range extension according to the ABS configuration information that the first base station is sent
CRE, and in the ABS of ABS configuration information instruction, the cell edge UE after progress CRE is scheduled.
In the step, the second base station carries out CRE after the ABS configuration information for receiving first base station transmission, absorbs first
The part edge UE of base station.Second base station can specifically bias (Ocn) parameter value by adjusting the adjacent area of A3 event and carry out CRE,
And in the ABS of ABS configuration information instruction, scheduling carries out the cell edge UE after CRE.
Optionally, in S201, the local resource includes: Physical Resource Block PRB；Second base station determines the 4th resource
Utilization rate, comprising:
Second base station determines that the minimum PRB of the lower each UE for currently carrying out business transmission of the second base station covering is needed
Seek number；
Second base station will currently carry out the minimum PRB of all UE of business transmission under the covering of second base station
The ratio of the sum of demand number, the PRB sum being able to use with the cell of second base station covering is determined as the 4th money
Source utilization rate.
In this embodiment, for the cell load more realistically reflected under the covering of the second base station, the present invention is real
Apply the PRB benefit that the resource utilization in example is service quality (Quality of Service, the QoS) Minimum requirements for meeting user
With rate.Specifically, for GBR traffic, the PRB number of the type business actual overhead can be considered the type business most
Low PRB demand number.For non-GBR business, the PRB number of the type business actual overhead is generally larger than the type business
Minimum PRB demand number.Therefore, the second base station is currently being carried out in the case where determining the covering of the second base station in the embodiment of the present invention
When the minimum PRB demand number of each UE of business transmission, any non-GBR business is used in determination according to the following formula
The minimum PRB demand number Q of UEPRB:
Wherein, VminFor the minimum guarantee rate of the setting non-GBR business, NPRBSetting non-is being used for the UE
The PRB number of actual overhead when GBR traffic, W are goodput of UE when using setting non-GBR business.
Optionally, it after second base station carries out CRE according to the ABS configuration information that the first base station is sent, also wraps
It includes:
Resource status is requested in the resource status for receiving the first base station transmission in second base station
After request message, covered after carrying out CRE to the second base station described in the first base station periodic feedback lower, currently
Information resources utilization rate of all cell edge UE of carry out business transmission to the local resource under the covering of second base station；Institute
It states information resources utilization rate and adjusts ABS configuration information for the first base station.
In the specific implementation process, first base station sends Resource status request message to the second base station, the
Two base stations are currently carrying out industry after receiving Resource status request message in the cell after determining extension
The information resources utilization rate of all cell edge UE (namely UE in the region CRE) of business transmission.Second base station can specifically lead to
It crosses ABS state and updates (Resource status update:ABS status) message feedback information resources utilization rate.First base
It stands according to the information resources utilization rate of the second base station feedback and the first resource utilization rate of this cell, adjusts ABS configuration
Information.
Optionally, under the embodiment of above-mentioned adjustment ABS configuration information, the local resource includes: Physical Resource Block
PRB；Second base station determines the 3rd PRB utilization rate according to following steps:
Each cell edge under being covered after the determining progress CRE in second base station, currently carrying out business transmission
The minimum PRB demand number of UE；
Second base station will carry out covering after CRE lower, the current all cell edge UE for carrying out business transmission
The sum of minimum PRB demand number, the ratio for the PRB sum being able to use with the cell of second base station covering is determined as institute
State information resources utilization rate.
In above embodiment, the second base station is currently carrying out each cell edge UE of business transmission most in determination
When low PRB demand number, the minimum PRB demand number that the UE of any non-GBR business is used is determined according to the following formula
QPRB:
Wherein, VminFor the minimum guarantee rate of the setting non-GBR business, NPRBSetting non-is being used for the UE
The PRB number of actual overhead when GBR traffic, W are goodput of UE when using setting non-GBR business.
Dispatching method in embodiment in order to further illustrate the present invention enumerates a specific embodiment again below.
As shown in figure 3, the dispatching method flow chart provided for the embodiment of the present invention three, comprising:
S301: the second base station is currently carrying out all UE of business transmission to this cell in the case where determining the covering of the second base station
Local resource the 4th resource utilization lower than after the 5th threshold value, load recalls information is sent to first base station, to trigger
It states first base station and sends ABS configuration information.
Here, first base station specifically can be macro base station, and the second base station is specifically as follows various low power nodes LPN, practise
It is used to be above known as " small station ".
In the step, the second base station is when determining four resource utilizations, in order to more realistically reflect cell load,
Determining resource utilization is to meet the resource utilization of the QoS Minimum requirements of user.Resource utilization specifically can be PRB benefit
With rate, method of determination can be found in the description of above-described embodiment one and embodiment two, and which is not described herein again.
S302: first base station determines under first base station covering after the load recalls information for receiving the transmission of the second base station
The current all UE for carrying out business transmission cover the first resource utilization rate and first base station of the local resource of this cell
Lower Secondary resource utilization rate of all cell edge UE to the local resource of this cell for currently carrying out business transmission.
Consistent with the thinking of the 4th resource utilization determining in S301, first base station is determining first and second utilizations of resources
When rate, in order to more realistically reflect cell load, determining resource utilization is to meet the money of the QoS Minimum requirements of user
Source utilization rate.Method of determination can be found in the description of above-described embodiment one and embodiment two, and which is not described herein again.
S303: first base station determine the first resource utilization rate be higher than first threshold, and the Secondary resource utilize
After rate is higher than second threshold, ABS configuration information is sent to the second base station.
In the step, first base station can specifically be notified by the ABS Pattern Info in ABS information
Second base station ABS configuration information, when first base station initial setting up ABS configuration information, can by ABS Pattern Info extremely
Few corresponding Pattern of a subframe is set as non-zero.
S304: the second base station carries out cell range extension CRE according to the ABS configuration information that the first base station is sent, and
In the ABS of ABS configuration information instruction, the cell edge UE after progress CRE is scheduled.
In the step, the second base station can trigger the Ocn parameter value of A3 event by reducing this cell, increase triggering A3 thing
The difficulty of part, namely increase the difficulty that cell edge UE is switched to adjacent area, so that cell edge UE is resided in the second base station and covers
Cell under lid, in this way, being achieved that the purpose of CRE.After carrying out CRE, the second base station is in the ABS that first base station configures, to the greatest extent
Amount scheduling cell edge UE, namely the UE in the scheduling region CRE (cell range of extension).
S305: first base station sends Resource status request message, the second base station of instruction week to the second base station
Phase property feeds back information resources utilization rate.
In the step, after first base station indicates that the second base station periodic feedback carries out CRE, the utilization of resources of cell edge UE
Situation.
S306: the second base station is after the Resource status request message for receiving first base station transmission, the period
Property it is determining and feed back the second base station to first base station and cover after CRE and lower, current carrying out all small of business transmission
Information resources utilization rate of the area edge UE to the local resource of this cell.
Here, with the 4th resource utilization, first resource utilization rate and Secondary resource utilization rate are determined in S301 and S302
The unity of thinking, the second base station is when determining information resources utilization rate, in order to more realistically reflect cell load, determines
Resource utilization is to meet the resource utilization of the QoS Minimum requirements of user.Method of determination can be found in above-described embodiment one and reality
The description of example two is applied, which is not described herein again.
In the specific implementation process, the second base station specifically can update (Resource status by ABS resource status
Update:ABS status) information resources utilization rate described in message feedback.
S307: first base station first money current according to the information resources utilization rate of the second base station feedback and this cell
Source utilization rate adjusts ABS configuration information, and is sent to the second base station.
For example, first base station can be in the first resource utilization rate of this cell lower than after some threshold value L1, configuration is more
ABS reduces the ABS of configuration after the first resource utilization rate is greater than some threshold value L2.Meanwhile first base station can be by institute
There is the information resources utilization rate of adjacent second base station feedback to be added, obtains the information resources utilization rate of all adjacent second base stations
And value different correspond to a kind of ABS with value range and configures according to the adjustment ABS configuration of this and value for example, can be set.
S308: the second base station receives ABS configuration information adjusted, and according to ABS configuration information adjusted, dispatches small
Area edge UE.
S309: first base station is lower than third threshold value in the first resource utilization rate, and the information resources utilization rate is lower than
After 4th threshold value, cancel ABS configuration.
Here, since the Internet resources (ABS subframe) that first base station needs to sacrifice itself dispatch edge for the second base station
UE is affected to first base station handling capacity, and therefore, first base station is determining that this cell load value is lower or the second base station is covered
When load value in the cell of lid for edge UE is lower, ABS configuration can be cancelled.
Based on the same inventive concept, a kind of dispatching device corresponding with dispatching method is additionally provided in the embodiment of the present invention,
Since the principle that the device solves the problems, such as is similar to the dispatching method of the embodiment of the present invention, the implementation of the device be may refer to
The implementation of method, overlaps will not be repeated.
As shown in figure 4, the dispatching device structural schematic diagram provided for the embodiment of the present invention four, comprising:
Receiving module 41, the first base station that is used to trigger for receiving the transmission of the second base station send almost blank subframe ABS
The load recalls information of configuration information；
Determining module 42, for determining that the lower all users for currently carrying out business transmission of the first base station covering set
Under being covered for UE to the first resource utilization rate of the local resource under first base station covering and the first base station currently just
In all cell edge UE for carrying out business transmission to the Secondary resource utilization rate of the local resource under first base station covering；
Sending module 43, for determining that the first resource utilization rate is higher than first threshold in the determining module 42, and
After the Secondary resource utilization rate is higher than second threshold, ABS configuration information is sent to second base station；The ABS matches confidence
Breath is used to indicate second base station and carries out cell range extension CRE, and in the ABS of ABS configuration information instruction into
Cell edge UE after row CRE is scheduled.
Optionally, the local resource includes Physical Resource Block PRB；The determining module 42 is specifically used for:
Determine the minimum PRB demand number of the lower each UE for currently carrying out business transmission of first base station covering；
By the minimum PRB demand number of the lower all UE for currently carrying out business transmission of first base station covering it
With the ratio of PRB sum being able to use with the cell of first base station covering is determined as the first resource utilization rate；And
By the minimum PRB demand of the lower all cell edge UE for currently carrying out business transmission of first base station covering
The ratio of the sum of number, the PRB sum being able to use with the cell of first base station covering is determined as the Secondary resource benefit
With rate.
Optionally, any non-guarantee bit rate is used specifically for determination according to the following formula in the determining module 42
The minimum PRB demand number Q of the UE of non-GBR businessPRB:
Wherein, VminFor the minimum guarantee rate of the setting non-GBR business, NPRBSetting non-is being used for the UE
The PRB number of actual overhead when GBR traffic, W are goodput of UE when using setting non-GBR business.
Optionally, the sending module 43 is also used to: after sending ABS configuration information to second base station, to institute
It states the second base station and sends resource status request Resource status request message, indicate that second base station is periodical
Feed back information resources utilization rate；It is lower, currently that the information resources utilization rate is that second base station cover after CRE
Resource utilization of all cell edge UE of carry out business transmission to the local resource under the covering of second base station；
Described device further include:
Adjust module 44, for according to second base station feedback the information resources utilization rate and current institute
First resource utilization rate is stated, ABS configuration information is adjusted.
Optionally, the adjustment module 44 is also used to:
When determining the first resource utilization rate lower than third threshold value and/or the information resources utilization rate lower than the 4th
When threshold value, cancel ABS configuration.
As shown in figure 5, the dispatching device structural schematic diagram provided for the embodiment of the present invention five, comprising:
Determining module 51, for determining the lower all user equipment (UE)s for currently carrying out business transmission of the second base station covering
To the 4th resource utilization of the local resource under the covering of second base station；
Sending module 52 is used for after the determining module 51 determines that the 4th resource utilization is lower than the 5th threshold value,
Load recalls information is sent to first base station, sends almost blank subframe ABS configuration information to trigger the first base station；
Scheduler module 53, the ABS configuration information for being sent according to the first base station carry out cell range and extend CRE,
And in the ABS of ABS configuration information instruction, the cell edge UE after progress CRE is scheduled.
Optionally, the local resource includes: Physical Resource Block PRB；The determining module 51 is specifically used for: determining second
The minimum PRB demand number of the lower each UE for currently carrying out business transmission of base station covering；It will be under the covering of second base station
The sum of minimum PRB demand number of all UE of business transmission currently is being carried out, the cell energy with second base station covering
The ratio of the PRB sum enough used is determined as the 4th resource utilization.
Optionally, the sending module 52 is also used to: being requested receiving the resource status that the first base station is sent
After Resource status request message, the institute determining to determining module 51 described in the first base station periodic feedback
State the second base station carry out CRE after cover under, currently carrying out all cell edge UE of business transmission to second base
The information resources utilization rate for the local resource stood under covering；The information resources utilization rate adjusts ABS for the first base station
Configuration information.
Optionally, the local resource includes: Physical Resource Block PRB；The determining module 51 is specifically used for: described in determining
The minimum PRB demand number of each cell edge UE under being covered after second base station progress CRE, currently carrying out business transmission
Mesh；All cell edge UE's under covering after second base station progress CRE, currently carrying out business transmission is minimum
The ratio of the sum of PRB demand number, the PRB sum being able to use with the cell of second base station covering is determined as the third
Resource utilization.
Optionally, any non-guarantee bit rate is used specifically for determination according to the following formula in the determining module 51
The minimum PRB demand number Q of the UE of non-GBR businessPRB:
Wherein, VminFor the minimum guarantee rate of the setting non-GBR business, NPRBSetting non-is being used for the UE
The PRB number of actual overhead when GBR traffic, W are goodput of UE when using setting non-GBR business.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of device (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (20)
1. a kind of dispatching method, which is characterized in that this method comprises:
Letter is called in the load that almost blank subframe ABS configuration information is sent for triggering first base station for receiving the transmission of the second base station
Breath；
It determines that the first base station covering is lower and is currently carrying out all user equipment (UE)s of business transmission to the first base station
The first resource utilization rate of local resource under covering and the lower institute for currently carrying out business transmission of first base station covering
There is cell edge UE to the Secondary resource utilization rate of the local resource under first base station covering；
Determine the first resource utilization rate be higher than first threshold, and the Secondary resource utilization rate be higher than second threshold after,
ABS configuration information is sent to second base station；The ABS configuration information is used to indicate second base station and carries out cell range
CRE is extended, and the cell edge UE after progress CRE is scheduled in the ABS of ABS configuration information instruction；
Wherein, the second base station determines that the covering of the second base station is lower and is currently carrying out all user equipment (UE)s of business transmission to described
4th resource utilization of the local resource under the covering of the second base station；Determining the 4th resource utilization lower than the 5th threshold value
Afterwards, load recalls information is sent to first base station.
2. the method as described in claim 1, which is characterized in that the local resource includes Physical Resource Block PRB；The determination
First resource utilization rate and Secondary resource utilization rate, comprising:
Determine the minimum PRB demand number of the lower each UE for currently carrying out business transmission of first base station covering；
The sum of the minimum PRB demand number of all UE of business transmission will be currently being carried out under first base station covering, with
The ratio for the PRB sum that the cell of the first base station covering is able to use is determined as the first resource utilization rate；And
By the minimum PRB demand number of the lower all cell edge UE for currently carrying out business transmission of first base station covering
The sum of, the ratio for the PRB sum being able to use with the cell of first base station covering is determined as the Secondary resource utilization rate.
3. method according to claim 2, which is characterized in that any non-guarantee bit is used in determination according to the following formula
The minimum PRB demand number Q of the UE of rate non-GBR businessPRB:
Wherein, VminFor the minimum guarantee rate for setting non-GBR business, NPRBSetting non-GBR business is being used for the UE
When actual overhead PRB number, W is goodput of UE when using setting non-GBR business.
4. the method as described in claims 1 to 3 is any, which is characterized in that second base station send ABS configuration information it
Afterwards, further includes:
Resource status is sent to second base station and requests Resource status request message, indicates second base
Periodic feedback of standing information resources utilization rate；The information resources utilization rate be second base station carry out CRE after cover under,
Currently carrying out the utilization of resources of all cell edge UE of business transmission to the local resource under the covering of second base station
Rate；
According to the information resources utilization rate of second base station feedback, and the current first resource utilization rate, it adjusts
Whole ABS configuration information.
5. method as claimed in claim 4, which is characterized in that the method also includes:
When determining the first resource utilization rate lower than third threshold value and/or the information resources utilization rate lower than the 4th threshold value
When, cancel ABS configuration.
6. a kind of dispatching method characterized by comprising
Determine that covering lower all user equipment (UE)s for currently carrying out business transmission in the second base station cover second base station
Under local resource the 4th resource utilization；
After determining that the 4th resource utilization is lower than the 5th threshold value, load recalls information is sent to first base station, with triggering
The first base station sends almost blank subframe ABS configuration information；
Cell range is carried out according to the ABS configuration information that the first base station is sent and extends CRE, and in the ABS configuration information
In the ABS of instruction, the cell edge UE after progress CRE is scheduled；
Wherein, first base station determines current under first base station covering after the load recalls information for receiving the transmission of the second base station
All user equipment (UE)s of the business of progress transmission utilize the first resource of the local resource under first base station covering
Rate and the lower all cell edge UE for currently carrying out business transmission of first base station covering cover the first base station
Under local resource Secondary resource utilization rate；Determining that the first resource utilization rate is higher than first threshold, and described second
After resource utilization is higher than second threshold, ABS configuration information is sent to second base station.
7. method as claimed in claim 6, which is characterized in that the local resource includes: Physical Resource Block PRB；It is described true
Fixed 4th resource utilization, comprising:
Determine the minimum PRB demand number of the lower each UE for currently carrying out business transmission of the second base station covering；
The sum of the minimum PRB demand number of all UE of business transmission will be currently being carried out under the covering of second base station, with
The ratio for the PRB sum that the cell of the second base station covering is able to use is determined as the 4th resource utilization.
8. method according to claim 6 or 7, which is characterized in that according to the first base station send ABS configuration information into
After row CRE, further includes:
After receiving the resource status request Resource status request message that the first base station is sent, to institute
It states the second base station described in first base station periodic feedback and cover after CRE lower, owning of currently carrying out business transmission
Information resources utilization rate of the cell edge UE to the local resource under the covering of second base station；The information resources utilization rate is used
ABS configuration information is adjusted in the first base station.
9. method according to claim 8, which is characterized in that the local resource includes: Physical Resource Block PRB；According to
Lower step determines the 3rd PRB utilization rate:
Determine each cell edge UE's under covering after second base station carries out CRE, currently carrying out business transmission
Minimum PRB demand number；
Second base station is carried out it is under covering after CRE, currently carrying out all cell edge UE of business transmission most
The sum of low PRB demand number is determined as described the with the ratio of PRB sum that the cell of second base station covering is able to use
Three resource utilizations.
10. the method as described in claim 7 or 9, which is characterized in that any non-guarantee is used in determination according to the following formula
The minimum PRB demand number Q of the UE of bit rate non-GBR businessPRB:
Wherein, VminFor the minimum guarantee rate for setting non-GBR business, NPRBSetting non-GBR business is being used for the UE
When actual overhead PRB number, W is goodput of UE when using setting non-GBR business.
11. a kind of dispatching device, which is characterized in that the device includes:
Receiving module, almost blank subframe ABS matches confidence to the first base station transmission that is used to trigger for receiving the transmission of the second base station
The load recalls information of breath；
Determining module, for determining the lower all user equipment (UE)s pair for currently carrying out business transmission of the first base station covering
It is currently being carried out under the first resource utilization rate and first base station covering of local resource under the first base station covering
Secondary resource utilization rate of all cell edge UE of business transmission to the local resource under first base station covering；
Sending module, for determining that the first resource utilization rate is higher than first threshold, and described second in the determining module
After resource utilization is higher than second threshold, ABS configuration information is sent to second base station；The ABS configuration information is for referring to
Show that second base station carries out cell range extension CRE, and in the ABS of ABS configuration information instruction to CRE is carried out after
Cell edge UE is scheduled；
Wherein, the second base station determines that the covering of the second base station is lower and is currently carrying out all user equipment (UE)s of business transmission to described
4th resource utilization of the local resource under the covering of the second base station；Determining the 4th resource utilization lower than the 5th threshold value
Afterwards, load recalls information is sent to first base station.
12. device as claimed in claim 11, which is characterized in that the local resource includes Physical Resource Block PRB；It is described true
Cover half block is specifically used for:
Determine the minimum PRB demand number of the lower each UE for currently carrying out business transmission of first base station covering；
The sum of the minimum PRB demand number of all UE of business transmission will be currently being carried out under first base station covering, with
The ratio for the PRB sum that the cell of the first base station covering is able to use is determined as the first resource utilization rate；And
By the minimum PRB demand number of the lower all cell edge UE for currently carrying out business transmission of first base station covering
The sum of, the ratio for the PRB sum being able to use with the cell of first base station covering is determined as the Secondary resource utilization rate.
13. device as claimed in claim 12, which is characterized in that the determining module is specifically used for determining according to the following formula
The minimum PRB demand number Q of any non-UE for ensureing bit rate non-GBR business is usedPRB:
Wherein, VminFor the minimum guarantee rate for setting non-GBR business, NPRBSetting non-GBR business is being used for the UE
When actual overhead PRB number, W is goodput of UE when using setting non-GBR business.
14. the device as described in claim 11~13 is any, which is characterized in that the sending module is also used to: to described
After second base station sends ABS configuration information, resource status is sent to second base station and requests Resource status
Request message indicates the second base station periodic feedback information resources utilization rate；The information resources utilization rate is described
Second base station carry out CRE after cover under, currently carrying out all cell edge UE of business transmission to second base station
The resource utilization of local resource under covering；
Described device further include:
Module is adjusted, for the information resources utilization rate according to second base station feedback, and current described first
Resource utilization adjusts ABS configuration information.
15. device as claimed in claim 14, which is characterized in that the adjustment module is also used to:
When determining the first resource utilization rate lower than third threshold value and/or the information resources utilization rate lower than the 4th threshold value
When, cancel ABS configuration.
16. a kind of dispatching device characterized by comprising
Determining module is currently carrying out all user equipment (UE)s of business transmission to described for determining that the covering of the second base station is lower
4th resource utilization of the local resource under the covering of the second base station；
Sending module, for determining the 4th resource utilization lower than after the 5th threshold value, to the first base in the determining module
Transmission of standing loads recalls information, sends almost blank subframe ABS configuration information to trigger the first base station；
Scheduler module, the ABS configuration information for being sent according to the first base station carry out cell range and extend CRE, and in institute
In the ABS for stating the instruction of ABS configuration information, the cell edge UE after progress CRE is scheduled；
Wherein, first base station determines current under first base station covering after the load recalls information for receiving the transmission of the second base station
All user equipment (UE)s of the business of progress transmission utilize the first resource of the local resource under first base station covering
Rate and the lower all cell edge UE for currently carrying out business transmission of first base station covering cover the first base station
Under local resource Secondary resource utilization rate；Determining that the first resource utilization rate is higher than first threshold, and described second
After resource utilization is higher than second threshold, ABS configuration information is sent to second base station.
17. device as claimed in claim 16, which is characterized in that the local resource includes: Physical Resource Block PRB；It is described
Determining module is specifically used for: determining the minimum PRB demand of the lower each UE for currently carrying out business transmission of the second base station covering
Number；The sum of the minimum PRB demand number of all UE of business transmission will be currently being carried out under the covering of second base station, with
The ratio for the PRB sum that the cell of the second base station covering is able to use is determined as the 4th resource utilization.
18. the device as described in claim 16 or 17, which is characterized in that the sending module is also used to: described receiving
It is periodical to the first base station after the resource status request Resource status request message that first base station is sent
It feeds back second base station that the determining module determines and cover after CRE lower, the current institute for carrying out business transmission
There is cell edge UE to the information resources utilization rate of the local resource under the covering of second base station；The information resources utilization rate
ABS configuration information is adjusted for the first base station.
19. device as claimed in claim 18, which is characterized in that the local resource includes: Physical Resource Block PRB；It is described
Determining module is specifically used for: determining to cover after second base station carries out CRE and lower, current is carrying out each of business transmission
The minimum PRB demand number of cell edge UE；Second base station is carried out cover after CRE and lower, current is carrying out business
The sum of the minimum PRB demand number of all cell edge UE of transmission is able to use with the cell of second base station covering
The ratio of PRB sum is determined as the information resources utilization rate.
20. the device as described in claim 17 or 19, which is characterized in that the determining module is specifically used for according to the following formula
Determine the minimum PRB demand number Q that any non-UE for ensureing bit rate non-GBR business is usedPRB:
Wherein, VminFor the minimum guarantee rate for setting non-GBR business, NPRBSetting non-GBR business is being used for the UE
When actual overhead PRB number, W is goodput of UE when using setting non-GBR business.
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| CN107317645B (en) * | 2016-04-26 | 2019-06-25 | 大唐移动通信设备有限公司 | A kind of method and device of Inter-Cell Interference Coordination |
| CN112996003B (en) * | 2019-12-12 | 2022-09-13 | 成都鼎桥通信技术有限公司 | Resource scheduling method, device and equipment |
| CN114760313B (en) * | 2020-12-29 | 2023-11-24 | 中国联合网络通信集团有限公司 | Service scheduling method and service scheduling device |
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| CN102761891A (en) * | 2011-04-29 | 2012-10-31 | 普天信息技术研究院有限公司 | Method for optimizing ABS (Almost Blank Sub-Frame) pattern in heterogeneous network |
| US20130021996A1 (en) * | 2011-07-19 | 2013-01-24 | Samsung Electronics Co., Ltd. | Method for reducing interference under multi-carrier configuration |
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