CN108811065A - The almost method of adjustment of blank subframe transmission power, device and computer equipment - Google Patents
The almost method of adjustment of blank subframe transmission power, device and computer equipment Download PDFInfo
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- CN108811065A CN108811065A CN201810522367.8A CN201810522367A CN108811065A CN 108811065 A CN108811065 A CN 108811065A CN 201810522367 A CN201810522367 A CN 201810522367A CN 108811065 A CN108811065 A CN 108811065A
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- station
- micro
- blank subframe
- transmission power
- power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/283—Power depending on the position of the mobile
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
Abstract
This application involves a kind of method of adjustment, system, computer equipment and the storage mediums of almost blank subframe transmission power.The method includes：Obtain the position indication information at micro- station, the resource utilization and user equipment metrical information of the almost blank subframe of micro- station feedback；Strong and weak coverage area judgement is carried out to micro- station present position according to the position indication information；If it is determined that micro- station present position in weak coverage area, then almost the resource utilization of blank subframe and the user equipment metrical information adjust transmission power of the macro station in the almost blank subframe according to.Influence of the unnecessary transmission power adjustment to micro- station performance can be avoided using this method, and almost blank subframe resource utilization and user equipment metrical information is combined to carry out the adjustment of almost blank subframe transmission power, so that almost the adjustment of blank subframe transmission power is more accurate, the resource utilization of system is effectively improved.
Description
Technical field
This application involves wireless communication technology fields, more particularly to a kind of adjustment side of almost blank subframe transmission power
Method, device, computer equipment and storage medium.
Background technology
LTE (Long Term Evolution, long term evolution) network be effectively solve macro station indoors under hot spot scene
The problems such as covering increases and shunts introduces LPN (Low Power Node, low power nodes) formation not in macro station coverage area
Such network is known as HetNet (Heterogeneous by the multitiered network for the same covering that same type node is constituted, industry
Network, heterogeneous network).LPN includes Pico cell (Pico cell), Home eNodeB (Femto cell) and relay node
(Relay Node) can also be referred to as micro- station for LPN here.
In heterogeneous network, the edge customer at micro- station suffers from serious co-channel interference, leads to its mobility, access property
Can etc. indexs deteriorate, in order to reduce influence of the co-channel interference to micro- station system performance, it is existing it is more mature be applied to it is macro micro- different
Inter-cell interference coordination method in network forming network is eICIC (Enhanced Inter Cell Interference
Coordination, enhancement type district interference coordination), this method configures almost blank subframe (Almost by macro station
Blank Subframe, ABS) pattern mode so that macro station reduces on these almost certain physical channels of blank subframe
Power emission does not emit, so as to avoid to the UE's (User Equipment, edge customer equipment) at micro- station
PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) and PDSCH (Physical
Downlink Shared Channel, Physical Downlink Shared Channel) interference.But in practical applications, macro station is in almost blank
Almost blank subframe is often caused when in subframe without emitting or carrying out data transmission by the way of low transmitting power
The waste of transfer resource.
Invention content
Based on this, it is necessary in traditional method for cell interference coordination, macro station in almost blank subframe not into
The technical issues of row is emitted or carried out data transmission causing the waste of transfer resource by the way of low transmitting power, provides one
Plant the almost method of adjustment of blank subframe transmission power, device, computer equipment and storage medium.
A kind of method of adjustment of almost blank subframe transmission power, includes the following steps：
Obtain the position indication information at micro- station, the resource utilization of the almost blank subframe of micro- station feedback and user
Device measuring information；
Strong and weak coverage area judgement is carried out to micro- station present position according to the position indication information；
If it is determined that micro- station present position is in weak coverage area, then the almost utilization of resources of blank subframe according to
The transmission power of rate and user equipment metrical information adjustment macro station in the almost blank subframe.
It is described in one of the embodiments, that power is carried out to micro- station present position according to the position indication information
It is further comprising the steps of after the step of coverage area judges：
If it is determined that micro- station present position is in strong coverage area, then the hair by the macro station in almost blank subframe
It is zero to penetrate power adjustment.
The position indication information includes distance values of the macro station to micro- station in one of the embodiments,；
Described the step of strong and weak coverage area judgement is carried out to micro- station present position according to the position indication information,
Include the following steps：
If the distance values are more than pre-determined distance threshold value, judge micro- station present position in weak coverage area；
If the distance values are less than or equal to the pre-determined distance threshold value, judge that micro- station present position is being covered by force
Within the scope of lid.
The position indication information includes that micro- station receives the first of macro station reference signal in one of the embodiments,
Receive power；
Described the step of strong and weak coverage area judgement is carried out to micro- station present position according to the position indication information,
Include the following steps：
If described first, which receives power, is less than preset reference signal reception power threshold value, position residing for micro- station is judged
It sets in weak coverage area；
If it is described first receive power be greater than or equal to the preset reference signal reception power threshold value, judgement described in
Micro- station present position is in strong coverage area.
Almost the resource utilization of blank subframe and the user set described in the basis in one of the embodiments,
Standby metrical information adjustment macro station includes the following steps the transmission power in the almost blank subframe the step of：
It, will be described if the resource utilization of the almost blank subframe is greater than or equal to default resource utilization threshold value
Transmission power of the macro station in almost blank subframe is adjusted to zero；
If the resource utilization of the almost blank subframe is less than the default resource utilization threshold value, according to
User equipment metrical information adjusts transmission power of the macro station in the almost blank subframe.
The user equipment metrical information includes that each user equipment receives the macro station reference in one of the embodiments,
The third that second reception power of signal and each user equipment receive micro- station reference signal receives power；
It is described that transmitting work(of the macro station in the almost blank subframe is adjusted according to the user equipment metrical information
The step of rate, includes the following steps：
The user equipment, which is obtained, according to each second reception power receives the first average of the macro station reference signal
Power；
Power is received according to each third obtain the user equipment receive the second average of micro- station reference signal
Power；
According to the reference signal transmission power of the macro station, the reference signal transmission power at micro- station, described first flat
The transmission power and reception power difference door of equal power, second mean power, micro- station in almost blank subframe
Limit calculates transmission power of the macro station in the almost blank subframe.
The reference of the reference signal transmission power, micro- station according to the macro station in one of the embodiments,
The transmitting of signal transmission power, first mean power, second mean power, micro- station in almost blank subframe
It power and receives power difference thresholding and calculates the macro station the transmission power in the almost blank subframe the step of, including
Following steps：
According to Pmacro=Ppico+((CRSmacro-RSRPmacro)-(CRSpico-RSRPpico))-Δ calculates the macro station in institute
State the transmission power in almost blank subframe；
Wherein, PmacroIndicate transmission power of the macro station in the almost blank subframe；PpicoIndicate micro- station
Transmission power in the almost blank subframe；CRSmacroIndicate the reference signal transmission power of the macro station；CRSpicoTable
Show the reference signal transmission power at micro- station；RSRPmacroIndicate first mean power；RSRPpicoIndicate described second
Mean power；Δ indicates to receive power difference thresholding.
A kind of adjusting apparatus of almost blank subframe transmission power, including：
Data obtaining module, for obtaining the position indication information at micro- station, the almost blank subframe of micro- station feedback
Resource utilization and user equipment metrical information；
Coverage area determination module is covered for carrying out power to micro- station present position according to the position indication information
Lid range judges；
Transmission power adjusts module, is used for when judging that micro- station present position is in weak coverage area, then according to institute
It states the almost resource utilization of blank subframe and the user equipment metrical information adjusts macro station in the almost blank subframe
On transmission power.
A kind of computer equipment, including memory and processor, the memory are stored with computer program, the processing
Device realizes following steps when executing the computer program：
Obtain the position indication information at micro- station, the resource utilization of the almost blank subframe of micro- station feedback and user
Device measuring information；
Strong and weak coverage area judgement is carried out to micro- station present position according to the position indication information；
If it is determined that micro- station present position is in weak coverage area, then the almost utilization of resources of blank subframe according to
The transmission power of rate and user equipment metrical information adjustment macro station in the almost blank subframe.
A kind of computer readable storage medium, is stored thereon with computer program, and the computer program is held by processor
Following steps are realized when row：
Obtain the position indication information at micro- station, the resource utilization of the almost blank subframe of micro- station feedback and user
Device measuring information；
Strong and weak coverage area judgement is carried out to micro- station present position according to the position indication information；
If it is determined that micro- station present position is in weak coverage area, then the almost utilization of resources of blank subframe according to
The transmission power of rate and user equipment metrical information adjustment macro station in the almost blank subframe.
Method of adjustment, device, computer equipment and the storage medium of above-mentioned almost blank subframe transmission power, macro station knot
Close position indication information, almost blank subframe resource utilization and the adjustment of user equipment metrical information at the micro- station acquired
The almost transmission power of blank subframe only implements almost blank subframe hair in the weak coverage area that the position at micro- station is in macro station
The adjustment for penetrating power avoids influence of the unnecessary transmission power adjustment to micro- station performance, and combines almost blank subframe resource
Utilization rate and user equipment metrical information carry out the adjustment of almost blank subframe transmission power so that almost blank subframe emits
The adjustment of power is more accurate, and the resource utilization of system is effectively improved in the case where guarantee is not interfered micro- station generation.
Description of the drawings
Fig. 1 is the applied environment figure of the almost method of adjustment of blank subframe transmission power in one embodiment of the invention；
Fig. 2 is macro station and micro- station communication sequential chart in one embodiment of the invention；
Fig. 3 is the flow chart of the almost method of adjustment of blank subframe transmission power in one embodiment of the invention；
Fig. 4 is the flow chart of the almost method of adjustment step of blank subframe transmission power in another embodiment of the present invention；
Fig. 5 is the schematic diagram of almost blank subframe pattern in one embodiment of the invention；
Fig. 6 is the structural schematic diagram figure of the almost adjusting apparatus of blank subframe transmission power in one embodiment of the invention；
Fig. 7 is the internal structure chart of one embodiment of the invention Computer equipment.
Specific implementation mode
It is with reference to the accompanying drawings and embodiments, right in order to make the object, technical solution and advantage of the application be more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
The method of adjustment of almost blank subframe transmission power provided by the present application, can be applied to application as shown in Figure 1
In environment.Wherein, macro base station 110 is interference source base station；Micro- station 120 is to be disturbed base station, can be Pico cell, Home eNodeB
And relay node etc.；Macro base station 110 and it is micro- station 120 between communication process as shown in Fig. 2, macro base station 110 almost blank
Subframe pattern is sent to micro- station 120, wherein which the almost blank subframe pattern is used to indicate within the almost blank subframe period
A little frame is that almost almost blank subframe is collected in blank subframe, micro- station according to almost blank subframe pattern execution scheduling of resource
Resource utilization and user equipment metrical information feed back to macro station 110, location information, Ji Hukong of the macro station 110 according to micro- station
The resource utilization and user equipment metrical information of white chessman frame adjust the transmission power in almost blank subframe.
Referring to Fig. 3, Fig. 3 is the almost flow of the method for adjustment of blank subframe transmission power in one embodiment of the invention
Figure, present embodiments provides a kind of method of adjustment of almost blank subframe transmission power, this method is said in Fig. 1
It is bright, include the following steps：
Step S310：Obtain micro- station position indication information, it is micro- station feedback almost blank subframe resource utilization with
And user equipment metrical information.
In this step, the position indication information at micro- station, can be with table for the position in the coverage area of macro station residing for micro- station
Macro station is shown as to the distance values at micro- station, the reception power that micro- station receives macro station reference signal can also be expressed as；Almost blank
The resource utilization of subframe indicates that micro- station resource used in progress dispatching user facility in ABS subframes accounts for the subframe and can use money
The ratio in source；User equipment metrical information include in ABS subframes it is all carry out scheduling of resource user equipment measurements obtain it is macro
The reception power for receiving power and micro- station reference signal for reference signal of standing.
Specifically, ABS subframe patterns are sent to micro- station by macro station, and obtain micro- station and resource is executed according to ABS subframe patterns
The resource utilization and user equipment metrical information for the almost blank subframe collected when scheduling.
Step S320：Strong and weak coverage area judgement is carried out to micro- station present position according to position indication information.
In this step, macro station determines that the position at micro- station is in the strong covering of macro station according to the position indication information that micro- station is sent
Range or weak coverage area.
Step S330：If it is determined that micro- station present position is in weak coverage area, then it is sharp according to the resource of almost blank subframe
With the transmission power of rate and user equipment metrical information adjustment macro station in almost blank subframe.
In this step, when macro station determines that the position at micro- station is in the weak coverage area of macro station, macro station is according to almost blank
The resource utilization and user equipment metrical information of frame, adjust the transmission power in each ABS subframes one by one.
Specifically, when macro station determines that the position at micro- station is in the weak coverage area of macro station, macro station is according to almost blank subframe
Resource utilization and user equipment metrical information, adjust the transmitting work(of the PDCCH and PDSCH in each ABS subframes one by one
Rate.
The method of adjustment of above-mentioned almost blank subframe transmission power, macro station combine the position instruction letter at the micro- station acquired
Breath, the almost resource utilization of blank subframe and user equipment metrical information adjust the transmission power in ABS subframes, only exist
The position at micro- station is in the weak coverage area of macro station the adjustment for implementing ABS subframe transmission powers, avoids unnecessary transmitting work(
Influence of the rate adjustment to micro- station performance, and the almost resource utilization of blank subframe and user equipment metrical information is combined to carry out
The adjustment of ABS subframe transmission powers so that the adjustment of the transmission power in ABS subframes is more accurate, effectively improves system
Resource utilization and handling capacity.
Strong and weak coverage area judgement is carried out to micro- station present position according to position indication information in one of the embodiments,
The step of after, it is further comprising the steps of：If it is determined that micro- station present position is in strong coverage area, then by macro station in almost blank
Transmission power in subframe is adjusted to zero.
In the present embodiment, when macro station determines that the position at micro- station is in the strong coverage area of macro station, micro- station is strong by macro station
The possibility of interference is bigger, and macro station raises the transmission power in ABS subframes and often causes, to the bursty interference at micro- station, to lead
Micro- station performance is caused to decline, the transmission power in ABS subframes is directly adjusted to zero by macro station at this time, and unnecessary power is avoided to lift
It rises and causes, to the influence of micro- station performance, to reduce processing complexity.Specifically, when macro station determines micro- strong covering model of the station in macro station
In enclosing, the transmission power that macro station is directly limited in PDCCH and PDSCH in ABS subframes is zero.
Position indication information includes distance values of the macro station to micro- station in one of the embodiments,；Believed according to position instruction
The step of breath carries out strong and weak coverage area judgement to micro- station present position, includes the following steps：If distance values are more than pre-determined distance
Threshold value then judges micro- station present position in weak coverage area；If distance values are less than or equal to pre-determined distance threshold value, sentence
Fixed micro- station present position is in strong coverage area.
In the present embodiment, position indication information is expressed as macro station to the distance values at micro- station；Utilize macro station to micro- station
Distance values and pre-determined distance threshold value carry out strong and weak coverage area and adjudicate, when macro station to micro- station be smaller than or equal to preset away from
When from threshold value, then judge that the position at micro- station is in the strong coverage area of macro station, conversely, then judging that the position at micro- station is in macro station
Weak coverage area will be converted into distance to the judgement of strong and weak coverage area of micro- station present position by the way that distance threshold is arranged
The comparison of value simplifies the workflow of judgement.
Position indication information includes the first reception work(that micro- station receives macro station reference signal in one of the embodiments,
Rate；The step of carrying out strong and weak coverage area judgement to micro- station present position according to position indication information, includes the following steps：If the
When one reception power is less than preset reference signal reception power threshold value, then judge micro- station present position in weak coverage area；
If the first reception power is greater than or equal to preset reference signal reception power threshold value, judge that micro- station present position is being covered by force
Within the scope of lid.
In the present embodiment, position indication information is expressed as the reception power that micro- station receives macro station reference signal；Utilize micro- station
It receives the reception power of the reference information of macro station and preset reference information receives power threshold and carries out strong and weak coverage area judgement,
When micro- station receive macro station reference signal reception power be greater than or equal to preset reference signal reception power threshold value, then judge
The position at micro- station is in the strong coverage area of macro station, conversely, then judging that the position at micro- station is in the weak coverage area of macro station；Pass through
Preset reference signal reception power threshold value is set, reception will be converted into the judgement of the strong and weak coverage area of micro- station present position
The comparison of power simplifies the process flow of judgement, reduces the workload of system.
In one of the embodiments, according to the almost resource utilization of blank subframe and user equipment metrical information tune
Whole macro station includes the following steps the transmission power in almost blank subframe the step of：If the almost utilization of resources of blank subframe
Rate is greater than or equal to default resource utilization threshold value, then the transmission power by macro station in almost blank subframe is adjusted to zero
Value；If almost the resource utilization of blank subframe is less than default resource utilization threshold value, according to user equipment metrical information
Adjust transmission power of the macro station in almost blank subframe.
In the present embodiment, in micro- weak coverage area of the station in macro station, then according to the resource profit for stating almost blank subframe
The adjustable strategies for adjudicating transmission power of the macro station in each ABS subframes one by one with rate, when the utilization of resources of almost blank subframe
Rate is greater than or equal to default resource utilization threshold value, i.e., almost the resource utilization of blank subframe is higher, and macro station is in ABS at this time
The resource dispatched in subframe and micro- probability that the resource dispatched in ABS subframes clashes of standing are relatively high, be easy to cause micro- station
Performance decline, with it is micro- station connection conversation loss break the case where increase, therefore, in the resource utilization of almost blank subframe
In the case of higher, the transmission power in ABS subframes is directly adjusted to zero by macro station, and unnecessary power lifting is avoided to cause
Influence to micro- station performance, reduces processing complexity；When the resource utilization of almost blank subframe is less than default resource utilization
Threshold value, i.e., almost the resource utilization of blank subframe is relatively low, and macro station is lifted according to user equipment metrical information in ABS at this time
Transmission power on frame, to improve the resource utilization and handling capacity of system.
In one of the embodiments, user equipment metrical information include that each user equipment receives macro station reference signal the
The third that two reception power and each user equipment receive micro- station reference signal receives power；According to user equipment metrical information tune
Whole macro station includes the following steps the transmission power in almost blank subframe the step of：Power, which is received, according to each second obtains use
Family equipment receives the first mean power of macro station reference signal；Power, which is received, according to each third obtains the micro- station ginseng of user equipment reception
Examine the second mean power of signal；According to the reference signal transmission power of macro station, the reference signal transmission power at micro- station, first flat
The transmission power and reception power difference thresholding of equal power, the second mean power, micro- station in almost blank subframe calculate macro
It stands the transmission power in almost blank subframe.
In this embodiment, user equipment includes all user equipmenies for carrying out scheduling of resource in ABS subframes；At micro- station
In in the weak coverage area of macro station, and ought the resource utilization of almost blank subframe be less than default resource utilization threshold value, i.e.,
When almost the resource utilization of blank subframe is relatively low, macro station is accurately calculated in the ABS subframes according to user equipment metrical information
Transmission power reduce the influence to the downstream modulation ability at micro- station to ensure to avoid to generate interference to the performance at micro- station, pass through
It will combine with user equipment metrical information the case where ABS subframe utilization rates, more accurately realize and work(is emitted to ABS subframes
The adjustment of rate effectively improves the resource utilization and throughput of system of system.
Specifically, it is to require to determine according to base station receptivity to receive power difference thresholding, when base station, receptivity is wanted
Ask higher, receive power difference thresholding it is bigger, when base station receptivity require it is lower, then it is smaller to receive power difference thresholding；It is micro-
The reference signal transmission power stood can be obtained by macro station by intercepting the broadcast message at micro- station, and micro- station is in almost blank subframe
Transmission power can by macro station according to the reference signal transmission power at micro- station estimate obtain；User equipment metrical information is included in
All user equipmenies for carrying out scheduling of resource measure the reception power and micro- station reference letter of macro station reference signal in ABS subframes
Number reception power, according to the first mean power of reception power calculation of the macro station reference signal of all user equipmenies, according to institute
There is the second mean power of reception power calculation of micro- station reference signal of user equipment；Emit work(according to the reference signal of macro station
The hair of rate, the reference signal transmission power at micro- station, the first mean power, the second mean power, micro- station in almost blank subframe
It penetrates power and receives power difference thresholding and calculate transmission power of the macro station in almost blank subframe.
Further, in one of the embodiments, according to the reference signal transmission power of macro station, the reference signal at micro- station
The transmission power and reception power of transmission power, the first mean power, the second mean power, micro- station in almost blank subframe
Difference threshold calculates macro station the transmission power in almost blank subframe the step of, includes the following steps：According to the following public affairs of formula
Formula (1) calculates macro station in the transmission power in almost blank subframe；
Pmacro=Ppico+((CRSmacro-RSRPmacro)-(CRSpico-RSRPpico))-Δ (1)
Wherein, PmacroIndicate transmission power of the macro station in almost blank subframe；PpicoIndicate micro- station in almost blank
Transmission power on frame；CRSmacroIndicate the reference signal transmission power of macro station；CRSpicoIndicate the reference signal transmitting at micro- station
Power；RSRPmacroIndicate the first mean power；RSRPpicoIndicate the second mean power；Δ indicates to receive power difference thresholding.
It should be noted that since the user equipment dispatched in each ABS subframes is not necessarily identical, RSRPmacroWith
And RSRPpicoValue may also differ, therefore, transmission power of the macro station in each ABS subframes also differs.
Referring to Fig. 4, Fig. 4 is the almost flow of the method for adjustment of blank subframe transmission power in another embodiment of the present invention
Figure；The present embodiment is further described technical scheme of the present invention in Fig. 1, almost blank subframe transmission power
Method of adjustment includes the following steps：
Step S410：Obtain micro- station position indication information, it is micro- station feedback almost blank subframe resource utilization with
And user equipment metrical information；Wherein, position indication information includes the first reception power that micro- station receives macro station reference signal, is used
Family device measuring information includes the second reception power and the reception of each user equipment that each user equipment receives macro station reference signal
The third of micro- station reference signal receives power.
In this step, the position indication information at micro- station, can be with table for the position in the coverage area of macro station residing for micro- station
It is shown as the reception power that micro- station receives macro station reference signal；Almost the resource utilization of blank subframe indicates micro- station in ABS
The ratio that resource used in dispatching user facility accounts for the subframe available resources is carried out on frame；User equipment metrical information is included in
All user equipment measurements for carrying out scheduling of resource obtain reception power and the reference of micro- station of macro station reference signal in ABS subframes
The reception power of signal.
By taking Fig. 1 as an example, ABS subframe patterns are sent to micro- station 120 by macro station 110, and micro- station 120 is held according to ABS subframe patterns
Row scheduling of resource, is collected simultaneously the almost resource utilization of blank subframe and user equipment metrical information feeds back to macro station 110.Its
In, it is -95dBm that micro- station 120, which receives the first of the reference signal of macro station 110 and receives power,；The ABS subframes that macro station 110 is sent
Pattern is as shown in figure 5, micro- station 120 dispatches user equipment 131 in the ABS subframes in ABS subframe patterns, by user equipment
132 scheduling count the resource utilization of ABS subframes respectively in non-ABS subframes, wherein the resource utilization of 0 subframe 0 of frame
Resource utilization for 100%, frame, 0 subframe 6 is 90%, and the resource utilization of 1 subframe 0 of frame is 40%, and user equipment 131 connects
It is -90dBm to receive the second of the reference signal of macro station 110 and receive power, and user equipment 131 receives the reference letter at micro- station 120
It is -80dBm that number third, which receives power,.
Step S420：Judge whether the first reception power is less than preset reference signal reception power threshold value, if so, sentencing
Fixed micro- station present position is in weak coverage area, and go to step S430；If it is not, then judging micro- station present position in covering model by force
In enclosing, go to step S460.
In this step, it is assumed that preset reference signal reception power threshold value is -88dBm, and micro- station 120 receives macro station
It is -95dBm that the first of 110 reference signal, which receives power, then the position at micro- station 120 is in the weak coverage area of macro station 110
It is interior.
Step S430：Judge whether the resource utilization of almost blank subframe is less than default resource utilization threshold value, if
No, go to step S460；If so, the S440 that gos to step.
After determining in micro- weak coverage area of the station 120 in macro station 110, according to the resource utilization of ABS subframes come one by one
The power adjustment strategy for adjudicating each ABS subframes, by step S410 it is found that the resource utilization of ABS subframes is respectively 0 subframe of frame
0=100%, 0 subframe 6=90% of frame, 1 subframe 0=40% of frame, and default resource utilization threshold value is 50%, then understands ABS
The both greater than default resource utilization threshold value of the resource utilization of 0 subframe 6 of 0 subframe 0 of frame and frame in subframe, and 1 subframe 0 of frame
Resource utilization be less than default resource utilization threshold value.
Step S440：Power, which is received, according to each second obtains the first average work(that user equipment receives macro station reference signal
Rate；Power, which is received, according to each third obtains the second mean power that user equipment receives micro- station reference signal.
Since the resource utilization of 1 subframe 0 of frame is less than default resource utilization threshold value, determine the adjustment of macro station 110 in frame
Transmission power in 1 subframe 0.Receive macro station reference signal by each user equipment in user equipment metrical information second receives
The third that power and each user equipment receive micro- station reference signal receives all progress on power, that is, 1 subframe 0 of getting frame
The user equipment of scheduling receives all in 1 subframe 0 of average value and frame of macro station Reference Signal Received Power be scheduled
User equipment receives the average value of micro- station Reference Signal Received Power；The user equipment being scheduled in 1 subframe 0 of frame only has
User equipment 131, thus directly received according to user equipment 131 macro station 110 reference signal second receive power and
The reference signal third reception power for receiving micro- station 120 directly calculates.
Step S450：According to the reference signal transmission power of macro station, the reference signal transmission power at micro- station, the first average work(
The transmission power and reception power difference thresholding of rate, the second mean power, micro- station in almost blank subframe calculate macro station and exist
The almost transmission power in blank subframe.
In this step, the reference signal that macro station 110 can obtain micro- station 120 by intercepting the broadcast message at micro- station 120 is sent out
Power is penetrated, and estimates transmission power of the micro- station 120 in almost blank subframe；The reference signal transmission power of macro station 110 is
110 known parameters of macro station；Macro station can be passed through by being tested base station or being emulated acquisition by receiving power difference thresholding
It is 110 reference signal transmission power, the reference signal transmission power at micro- station 120, the first mean power, the second mean power, micro-
120 transmission power and reception power difference thresholding in almost blank subframe of standing, which quickly calculates, obtains macro station 110 almost
Transmission power in blank subframe.
Step S460：Transmission power of the macro station in almost blank subframe is adjusted to zero.
In the present embodiment, by combine micro- station residing for macro station coverage area, it is micro- station using ABS subframes resource utilization with
And the UE metrical informations of scheduling of resource are carried out in ABS subframes to determine the power adjustment strategy of macro station ABS subframes, at micro- station
It is 0 in the strong coverage area of macro station, directly limiting the power of PDCCH and PDSCH in ABS subframes, when micro- station is in, macro station is weak to be covered
Within the scope of lid and when the relatively low situation of ABS subframe utilization rates, then according to carried out in ABS subframes the UE metrical informations of scheduling of resource come
The transmission power for adjusting ABS subframes, does not differentiate between ABS subframes and non-zero ABS subframes here, and considers micro- station and interfered by macro station
Situation and ABS subframe utilization rate situations more accurately implement ABS sub-frame powers and adjust criterion, effectively increase the money of system
Source utilization rate.
It should be understood that although each step in the flow chart of Fig. 3 and Fig. 4 is shown successively according to the instruction of arrow
Show, but these steps are not the inevitable sequence indicated according to arrow to be executed successively.Unless expressly state otherwise herein, this
There is no stringent sequences to limit for the execution of a little steps, these steps can execute in other order.Moreover, Fig. 3 and Fig. 4
In at least part step may include that either these sub-steps of multiple stages or stage are not necessarily multiple sub-steps
Completion is executed in synchronization, but can be executed at different times, the execution in these sub-steps or stage sequence is not yet
Necessarily carry out successively, but can either the sub-step of other steps or at least part in stage be in turn with other steps
Or it alternately executes.
According to the method for adjustment of above-mentioned almost blank subframe transmission power, the present invention also provides a kind of almost blank subframes to send out
The adjusting apparatus of power is penetrated, the embodiment with regard to the adjusting apparatus of the almost blank subframe transmission power of the present invention carries out detailed below
Explanation.
In one of the embodiments, as shown in fig. 6, Fig. 6 is that almost blank subframe emits in one embodiment of the invention
The structural schematic diagram of the adjusting apparatus of power provides a kind of adjusting apparatus of almost blank subframe transmission power, including：Information
Acquisition module 610, coverage area determination module 620 and transmission power adjust module 630, wherein：
Data obtaining module 610, the money for obtaining the position indication information at micro- station, the almost blank subframe of micro- station feedback
Source utilization rate and user equipment metrical information；
Coverage area determination module 620, for carrying out strong and weak covering model to micro- station present position according to position indication information
Enclose judgement；
Transmission power adjusts module 630, is used for when judging that micro- station present position is in weak coverage area, then according to almost
Transmission power of resource utilization and user equipment metrical information the adjustment macro station of blank subframe in almost blank subframe.
The adjusting apparatus of above-mentioned almost blank subframe transmission power, transmission power adjust 630 combining information of module and obtain mould
The position indication information at micro- station that block 610 acquires, almost blank subframe resource utilization and user equipment metrical information
The transmission power for adjusting almost blank subframe only implements almost blank in the weak coverage area that the position at micro- station is in macro station
The adjustment of frame transmission power avoids influence of the unnecessary transmission power adjustment to micro- station performance, and combines almost blank subframe
Resource utilization and user equipment metrical information carry out the adjustment of almost blank subframe transmission power so that almost blank subframe
The adjustment of transmission power is more accurate, effectively improves the resource utilization of system.
Transmission power adjustment module 630 is additionally operable to covering by force in the micro- station present position of judgement in one of the embodiments,
When within the scope of lid, transmission power of the macro station in almost blank subframe is adjusted to zero.
Position indication information includes distance values of the macro station to micro- station in one of the embodiments,；Coverage area judges mould
Block 620 is used to, when distance values are more than pre-determined distance threshold value, judge micro- station present position in weak coverage area；In distance values
When less than or equal to pre-determined distance threshold value, judge micro- station present position in strong coverage area.
Position indication information includes the first reception work(that micro- station receives macro station reference signal in one of the embodiments,
Rate；Coverage area determination module 620 is used for when first receives power and be less than preset reference signal reception power threshold value, judgement
Micro- station present position is in weak coverage area；Power, which is received, first is greater than or equal to preset reference signal reception power threshold value
When, judge micro- station present position in strong coverage area.
Transmission power adjustment module 630 is used for the resource utilization in almost blank subframe in one of the embodiments,
When more than or equal to default resource utilization threshold value, transmission power of the macro station in almost blank subframe is adjusted to zero；
When the resource utilization of almost blank subframe is less than default resource utilization threshold value, adjusted according to user equipment metrical information
Transmission power of the macro station in almost blank subframe.
In one of the embodiments, user equipment metrical information include that each user equipment receives macro station reference signal the
The third that two reception power and each user equipment receive micro- station reference signal receives power；Transmission power adjusts module 630 and uses
The first mean power that user equipment receives macro station reference signal is obtained in receiving power according to each second；It is received according to each third
Power obtains the second mean power that user equipment receives micro- station reference signal；According to the reference signal transmission power of macro station, micro-
Transmission power of the reference signal transmission power, the first mean power, the second mean power, micro- station stood in almost blank subframe
And it receives power difference thresholding and calculates transmission power of the macro station in almost blank subframe.
Transmission power adjustment module 630 is used to calculate macro station several according to following formula (2) in one of the embodiments,
Transmission power in blank subframe；
Pmacro=Ppico+((CRSmacro-RSRPmacro)-(CRSpico-RSRPpico))-Δ (2)
Wherein, PmacroIndicate transmission power of the macro station in almost blank subframe；PpicoIndicate micro- station in almost blank
Transmission power on frame；CRSmacroIndicate the reference signal transmission power of macro station；CRSpicoIndicate the reference signal transmitting at micro- station
Power；RSRPmacroIndicate the first mean power；RSRPpicoIndicate the second mean power；Δ indicates to receive power difference thresholding.
Specific restriction about the almost adjusting apparatus of blank subframe transmission power may refer to above for almost empty
The restriction of the method for adjustment of white chessman frame transmission power, details are not described herein.The adjustment of above-mentioned almost blank subframe transmission power fills
Modules in setting can be realized fully or partially through software, hardware and combinations thereof.Above-mentioned each module can be in the form of hardware
It is embedded in or independently of the storage that in the processor in computer equipment, can also be stored in a software form in computer equipment
In device, the corresponding operation of the above modules is executed in order to which processor calls.
In one embodiment, a kind of computer equipment is provided, which can be server, internal junction
Composition can be as shown in Figure 7.The computer equipment include the processor connected by system bus, memory, network interface and
Database.Wherein, the processor of the computer equipment is for providing calculating and control ability.The memory packet of the computer equipment
Include non-volatile memory medium, built-in storage.The non-volatile memory medium is stored with operating system, computer program and data
Library.The built-in storage provides environment for the operation of operating system and computer program in non-volatile memory medium.The calculating
The database of machine equipment indicates information, almost blank subframe resource utilization and user equipment metrical information for storage location
Etc. data.The network interface of the computer equipment is used to communicate by network connection with external terminal.The computer program quilt
To realize a kind of method of adjustment of almost blank subframe transmission power when processor executes.
It will be understood by those skilled in the art that structure shown in Fig. 7, is only tied with the relevant part of application scheme
The block diagram of structure does not constitute the restriction for the computer equipment being applied thereon to application scheme, specific computer equipment
May include either combining certain components than more or fewer components as shown in the figure or being arranged with different components.
A kind of computer equipment, including memory and processor are provided in one of the embodiments, are deposited in memory
Computer program is contained, which realizes following steps when executing computer program：
Obtain the position indication information at micro- station, the resource utilization and user equipment of the almost blank subframe of micro- station feedback
Metrical information；
Strong and weak coverage area judgement is carried out to micro- station present position according to position indication information；
If it is determined that micro- station present position is in weak coverage area, then according to the resource utilization and use of almost blank subframe
Transmission power of the family device measuring information adjustment macro station in almost blank subframe.
Following steps are also realized when processor executes computer program in one of the embodiments,：If it is determined that micro- station institute
Locate position in strong coverage area, then the transmission power by macro station in almost blank subframe is adjusted to zero.
Position indication information includes distance values of the macro station to micro- station in one of the embodiments,；Processor executes calculating
Following steps are also realized when machine program：If distance values are more than pre-determined distance threshold value, judge micro- station present position in weak covering
In range；If distance values are less than or equal to pre-determined distance threshold value, judge micro- station present position in strong coverage area.
Position indication information includes the first reception work(that micro- station receives macro station reference signal in one of the embodiments,
Rate；Processor also realizes following steps when executing computer program：If first, which receives power, is less than preset reference signal reception work(
When rate threshold value, then judge micro- station present position in weak coverage area；If first, which receives power, is greater than or equal to preset reference
When signal reception power threshold value, then judge micro- station present position in strong coverage area.
Following steps are also realized when processor executes computer program in one of the embodiments,：If almost blank
The resource utilization of frame is greater than or equal to default resource utilization threshold value, then the transmitting work(by macro station in almost blank subframe
Rate is adjusted to zero；If almost the resource utilization of blank subframe is less than default resource utilization threshold value, set according to user
Transmission power of the standby metrical information adjustment macro station in almost blank subframe.
In one of the embodiments, user equipment metrical information include that each user equipment receives macro station reference signal the
The third that two reception power and each user equipment receive micro- station reference signal receives power；When processor executes computer program
Also realize following steps：Power, which is received, according to each second obtains the first mean power that user equipment receives macro station reference signal；
Power, which is received, according to each third obtains the second mean power that user equipment receives micro- station reference signal；Believed according to the reference of macro station
Number transmission power, the reference signal transmission power at micro- station, the first mean power, the second mean power, micro- station are in almost blank
Transmission power and reception power difference thresholding on frame calculate transmission power of the macro station in almost blank subframe.
Following steps are also realized when processor executes computer program in one of the embodiments,：According to following formula
(3) transmission power of the macro station in almost blank subframe is calculated；
Pmacro=Ppico+((CRSmacro-RSRPmacro)-(CRSpico-RSRPpico))-Δ (3)
Wherein, PmacroIndicate transmission power of the macro station in almost blank subframe；PpicoIndicate micro- station in almost blank
Transmission power on frame；CRSmacroIndicate the reference signal transmission power of macro station；CRSpicoIndicate the reference signal transmitting at micro- station
Power；RSRPmacroIndicate the first mean power；RSRPpicoIndicate the second mean power；Δ indicates to receive power difference thresholding.
A kind of computer readable storage medium is provided in one of the embodiments, is stored thereon with computer program,
Following steps are realized when computer program is executed by processor：
Obtain the position indication information at micro- station, the resource utilization and user equipment of the almost blank subframe of micro- station feedback
Metrical information；
Strong and weak coverage area judgement is carried out to micro- station present position according to position indication information；
If it is determined that micro- station present position is in weak coverage area, then according to the resource utilization and use of almost blank subframe
Transmission power of the family device measuring information adjustment macro station in almost blank subframe.
Following steps are also realized when computer program is executed by processor in one of the embodiments,：If it is determined that micro- station
Present position is in strong coverage area, then the transmission power by macro station in almost blank subframe is adjusted to zero.
Position indication information includes distance values of the macro station to micro- station in one of the embodiments,；Computer program is located
Reason device also realizes following steps when executing：If distance values are more than pre-determined distance threshold value, judge that micro- station present position is covered weak
Within the scope of lid；If distance values are less than or equal to pre-determined distance threshold value, judge micro- station present position in strong coverage area.
Position indication information includes the first reception work(that micro- station receives macro station reference signal in one of the embodiments,
Rate；Following steps are also realized when computer program is executed by processor：It is received less than preset reference signal if first receives power
When power threshold, then judge micro- station present position in weak coverage area；If first, which receives power, is greater than or equal to default ginseng
When examining signal reception power threshold value, then judge micro- station present position in strong coverage area.
Following steps are also realized when computer program is executed by processor in one of the embodiments,：If almost blank
The resource utilization of subframe is greater than or equal to default resource utilization threshold value, the then transmitting by macro station in almost blank subframe
Power adjustment is zero；If almost the resource utilization of blank subframe is less than default resource utilization threshold value, according to user
Device measuring information adjusts transmission power of the macro station in almost blank subframe.
In one of the embodiments, user equipment metrical information include that each user equipment receives macro station reference signal the
The third that two reception power and each user equipment receive micro- station reference signal receives power；Computer program is executed by processor
When also realize following steps：Power, which is received, according to each second obtains the first average work(that user equipment receives macro station reference signal
Rate；Power, which is received, according to each third obtains the second mean power that user equipment receives micro- station reference signal；According to the ginseng of macro station
Signal transmission power, the reference signal transmission power at micro- station, the first mean power, the second mean power, micro- station are examined almost empty
Transmission power and reception power difference thresholding on white chessman frame calculate transmission power of the macro station in almost blank subframe.
Following steps are also realized when computer program is executed by processor in one of the embodiments,：According to following public affairs
Formula (4) calculates transmission power of the macro station in almost blank subframe；
Pmacro=Ppico+((CRSmacro-RSRPmacro)-(CRSpico-RSRPpico))-Δ (4)
Wherein, PmacroIndicate transmission power of the macro station in almost blank subframe；PpicoIndicate micro- station in almost blank
Transmission power on frame；CRSmacroIndicate the reference signal transmission power of macro station；CRSpicoIndicate the reference signal transmitting at micro- station
Power；RSRPmacroIndicate the first mean power；RSRPpicoIndicate the second mean power；Δ indicates to receive power difference thresholding.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the computer program can be stored in a non-volatile computer
In read/write memory medium, the computer program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein,
Any reference to memory, storage, database or other media used in each embodiment provided herein,
Including non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM
(PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include
Random access memory (RAM) or external cache.By way of illustration and not limitation, RAM in a variety of forms may be used
, such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM),
Enhanced SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) are direct
RAM (RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of above example can be combined arbitrarily, to keep description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield is all considered to be the range of this specification record.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, under the premise of not departing from the application design, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the protection domain of the application patent should be determined by the appended claims.
Claims (10)
1. a kind of method of adjustment of almost blank subframe transmission power, which is characterized in that include the following steps：
Obtain the position indication information at micro- station, the resource utilization and user equipment of the almost blank subframe of micro- station feedback
Metrical information；
Strong and weak coverage area judgement is carried out to micro- station present position according to the position indication information；
If it is determined that micro- station present position is in weak coverage area, then according to almost the resource utilization of blank subframe with
And transmission power of the user equipment metrical information adjustment macro station in the almost blank subframe.
2. the method for adjustment of almost blank subframe transmission power according to claim 1, which is characterized in that described according to institute
Further include following step after stating the step of position indication information carries out strong and weak coverage area judgement to micro- station present position
Suddenly：
If it is determined that micro- station present position is in strong coverage area, then the transmitting work(by the macro station in almost blank subframe
Rate is adjusted to zero.
3. the method for adjustment of almost blank subframe transmission power according to claim 1 or claim 2, which is characterized in that the position
Indicate that information includes distance values of the macro station to micro- station；
Described the step of strong and weak coverage area judgement is carried out to micro- station present position according to the position indication information, including
Following steps：
If the distance values are more than pre-determined distance threshold value, judge micro- station present position in weak coverage area；
If the distance values are less than or equal to the pre-determined distance threshold value, judge micro- station present position in covering model by force
In enclosing.
4. the method for adjustment of almost blank subframe transmission power according to claim 1 or 2, which is characterized in that institute's rheme
It includes the first reception power that micro- station receives macro station reference signal to set instruction information；
Described the step of strong and weak coverage area judgement is carried out to micro- station present position according to the position indication information, including
Following steps：
If described first, which receives power, is less than preset reference signal reception power threshold value, judge that micro- station present position exists
In weak coverage area；
If described first, which receives power, is greater than or equal to the preset reference signal reception power threshold value, micro- station is judged
Present position is in strong coverage area.
5. the method for adjustment of almost blank subframe transmission power according to claim 1, which is characterized in that described according to institute
It states the almost resource utilization of blank subframe and the user equipment metrical information adjusts macro station in the almost blank subframe
On transmission power the step of, include the following steps：
If the resource utilization of the almost blank subframe is greater than or equal to default resource utilization threshold value, by the macro station
Transmission power in almost blank subframe is adjusted to zero；
If the resource utilization of the almost blank subframe is less than the default resource utilization threshold value, according to the user
Device measuring information adjusts transmission power of the macro station in the almost blank subframe.
6. the method for adjustment of almost blank subframe transmission power according to claim 5, which is characterized in that the user sets
Standby metrical information includes that each user equipment receives the second reception power of the macro station reference signal and each user equipment
The third for receiving micro- station reference signal receives power；
It is described that transmission power of the macro station in the almost blank subframe is adjusted according to the user equipment metrical information
Step includes the following steps：
The first mean power that the user equipment receives the macro station reference signal is obtained according to each second reception power；
Power, which is received, according to each third obtains the second mean power that the user equipment receives micro- station reference signal；
According to the reference signal transmission power of the macro station, the reference signal transmission power at micro- station, the first average work(
The transmission power and reception power difference thresholding meter of rate, second mean power, micro- station in almost blank subframe
Calculate transmission power of the macro station in the almost blank subframe.
7. the method for adjustment of almost blank subframe transmission power according to claim 6, which is characterized in that described according to institute
State the reference signal transmission power of macro station, the reference signal transmission power at micro- station, first mean power, described second
The transmission power and reception power difference thresholding of mean power, micro- station in almost blank subframe calculate the macro station and exist
The step of transmission power in the almost blank subframe, include the following steps：
According to Pmacro=Ppico+((CRSmacro-RSRPmacro)-(CRSpico-RSRPpico))-△ calculates the macro station described several
Transmission power in blank subframe；
Wherein, PmacroIndicate transmission power of the macro station in the almost blank subframe；PpicoIndicate micro- station in institute
State the transmission power in almost blank subframe；CRSmacroIndicate the reference signal transmission power of the macro station；CRSpicoIndicate institute
State the reference signal transmission power at micro- station；RSRPmacroIndicate first mean power；RSRPpicoIndicate that described second is average
Power；△ indicates to receive power difference thresholding.
8. a kind of adjusting apparatus of almost blank subframe transmission power, which is characterized in that including：
Data obtaining module, the resource for obtaining the position indication information at micro- station, the almost blank subframe of micro- station feedback
Utilization rate and user equipment metrical information；
Coverage area determination module, for carrying out strong and weak covering model to micro- station present position according to the position indication information
Enclose judgement；
Transmission power adjusts module, is used for when judging that micro- station present position is in weak coverage area, then according to described several
The resource utilization of blank subframe and the user equipment metrical information adjust macro station in the almost blank subframe
Transmission power.
9. a kind of computer equipment, including memory and processor, the memory are stored with computer program, feature exists
In the processor realizes that almost blank subframe emits described in any one of claim 1 to 7 when executing the computer program
The step of adjustment of power.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step of almost adjustment of blank subframe transmission power is realized described in any one of claim 1 to 7 when being executed by processor.
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Effective date of registration: 20200108 Address after: 510663 Shenzhou Road 10, Guangzhou Science City, Guangzhou economic and Technological Development Zone, Guangzhou, Guangdong Applicant after: Jingxin Communication System (China) Co., Ltd. Address before: 510663 Shenzhou Road 10, Guangzhou Science City, Guangzhou economic and Technological Development Zone, Guangzhou, Guangdong Applicant before: Jingxin Communication System (China) Co., Ltd. Applicant before: Jingxin Communication System (Guangzhou) Co., Ltd. Applicant before: Jingxin Communication Technology (Guangzhou) Co., Ltd. Applicant before: TIANJIN COMBA TELECOM SYSTEMS CO., LTD. |
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Address after: 510663 Shenzhou Road 10, Guangzhou Science City, Guangzhou economic and Technological Development Zone, Guangzhou, Guangdong Patentee after: Jingxin Network System Co.,Ltd. Address before: 510663 Shenzhou Road 10, Guangzhou Science City, Guangzhou economic and Technological Development Zone, Guangzhou, Guangdong Patentee before: Comba Telecom System (China) Ltd. |
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