CN105828338B - A kind of method and device configuring almost blank subframe ABS - Google Patents
A kind of method and device configuring almost blank subframe ABS Download PDFInfo
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- CN105828338B CN105828338B CN201610136963.3A CN201610136963A CN105828338B CN 105828338 B CN105828338 B CN 105828338B CN 201610136963 A CN201610136963 A CN 201610136963A CN 105828338 B CN105828338 B CN 105828338B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
- H04J11/0056—Inter-base station aspects
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Abstract
The invention discloses a kind of method and devices for configuring almost blank subframe ABS, this method includes that interference base station obtains N number of ABS use information for being disturbed base station transmission, according to ABS use information and the number of the configurable ABS of interference base station, the ABS adjustment state for being disturbed base station, determine the number of the first configurable ABS and the number of the second configurable ABS, according to the number and N number of disturbance level of N number of the second configurable ABS for being disturbed base station, the number of interference base station configuration ABS is determined.The embodiment of the present invention in view of interference base station and the resource requirement for being disturbed base station and is disturbed the corresponding disturbance level in base station during being adjusted ABS, so that ABS configuration is balanced in demand and interference, the convergence time length and existing jitter problem that ABS is configured are solved simultaneously, improve system stability, and then reach reduction edge customer interference, the purpose of lifting system performance and handling capacity.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of method and devices for configuring almost blank subframe ABS.
Background technique
In LTE (Long Term Evolution, long term evolution) communication system, need effectively to solve indoor and hot spot
The problems such as covering of scene lower network and network capacity increase, introduces HetNet (Heterogeneous network, isomery thus
Network).HetNet is introducing LPN (Low PowerNode, low power nodes) in macro base station coverage area, is formed by difference
The multitiered network for the same covering that type node is constituted.LPN is alternatively referred to as micro-base station, including Pico cell (Picocell), family
Base station (Femtocell) and the relay node (Relay Node) for possessing signal relay transmission, compared to traditional macro base
The advantages that standing, there is low in energy consumption, small in size, light and flexible, mending the shunting of blind and hot spot and flexible deployment convenient for covering.
Currently, improving frequency spectrum benefit frequently with the scheme of identical networking for macro base station and micro-base station industry in HetNet
With rate, but make micro-base station edge customer by serious co-channel interference, the indexs such as its mobility, access performance is caused to deteriorate.
Therefore it in heterogeneous network, needs to realize macro micro- interference coordination, effectively reduces co-channel interference to micro-base station system performance
It influences.The technical solution of existing maturation have eICIC (Enhanced Inter Cell Interference Coordination,
Enhancement type district interference coordination), key technology is exactly ABS (Almost Blank Subframe, almost blank subframe).
ABS technology is that macro base station reduces power emission on certain physical channels of ABS or do not emit, so as to avoid to micro- base
It stands PDCCH (Physical Downlink Control Channel, the object of edge UE (User Equipment, user equipment)
Manage down control channel) and PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel)
Interference.
In HetNet, the factors such as load, interference and distribution of user of network are all time-varying, therefore, at the beginning of macro base station
The ABS for beginning to configure can only meet the needs of micro-base station edge customer in a period of time and system performance, be unable to satisfy other periods
System performance, and the ABS of fixed configurations is possible to will lead to system performance degradation in certain periods.So complete in macro base station
It at initial ABS with postponing, needs to adjust ABS configuration in time according to the variation of network environment, reduces ABS configuration to system performance
It influences, and then reaches reduction micro-base station edge customer interference, promote the purpose of whole net system performance and handling capacity.
In existing technical solution, most of ABS adjustable strategies mainly consider the load of micro-base station, interference, user information,
Number, utilization rate of ABS of edge customer etc., there is no from macro base station angle consider macro base station to the annoyance level of micro-base station,
Most macro base stations are to carry out ABS adjustment according to the information that micro-base station is fed back, therefore will lead to the ABS resource finally configured and do not conform to
Reason is not being met so that occurring being disturbed big micro-base station ABS several demands, and is disturbed ABS number of small micro-base station
It much larger than actual demand, eventually leads to system resource and wastes, whole net throughput of system decline, there are larger differences for user performance
It is different.
Summary of the invention
The embodiment of the present invention provides a kind of method and apparatus for configuring ABS, improves system stability and promotion to realize
The purpose of system performance and handling capacity.
A kind of method configuring ABS provided in an embodiment of the present invention, comprising:
Interference base station obtains N number of ABS use information for being disturbed base station for being disturbed base station transmission, and N is positive integer；
It is disturbed base station for described N number of each of base station that is disturbed, the interference base station is disturbed base according to
The number of the configurable ABS of the ABS use information and the interference base station stood, determine described in be disturbed the first configurable of base station
The number of ABS；The interference base station be disturbed according to base station ABS adjustment state and it is described be disturbed the first of base station can
The number of ABS is configured, the number of the second configurable ABS of base station is disturbed described in determination；
The interference base station is according to the number of N number of second configurable ABS for being disturbed base station and described N number of by dry
The corresponding disturbance level in base station is disturbed, determines the number of the interference base station configuration ABS.
Preferably, the interference base station be disturbed according to base station ABS adjustment state and the base station that is disturbed
The number of first configurable ABS, determine described in be disturbed base station the second configurable ABS number, comprising:
Within the ABS adjustment state judgement period, the first configurable ABS of base station is disturbed described in the interference base station judgement
The number that occurs of number and the interference base station be whether the ratio of the number for being disturbed base station configuration ABS is greater than ratio
Threshold value；
If so, the interference base station is disturbed what base station was configured for described in the ABS adjustment state judgement period
The average value of the number of ABS is rounded, and the average value after rounding is determined as to of the second configurable ABS for being disturbed base station
Number；
Otherwise, the number of the first configurable ABS for being disturbed base station is determined as described by dry by the interference base station
Disturb the number of the second configurable ABS of base station.
Preferably, the interference base station is determined according to following step described N number of is disturbed the corresponding disturbance level in base station:
It is disturbed base station for each, the interference base station obtains the metrical information that M edge termination reports and presets dry
It disturbs thresholding to compare, the corresponding disturbance level in base station is disturbed described in acquisition, wherein different disturbance levels corresponds to different interference
Weight coefficient, M are positive integer.
Preferably, the ABS use information for being disturbed base station includes the utilization of the PRB of the ABS for being disturbed base station
The number of rate and the available ABS for being disturbed base station；
The interference base station is disturbed the number of the first configurable ABS of base station according to formula (1) determination；
The formula (1) are as follows:
Wherein, NeNB_ABS_initFor the number for the first configurable ABS for being disturbed base station, NMacroABS_sfFor interference base station
The number of configurable ABS, Nallocated_ABSThe number of the ABS of periodic disturbances base station configuration, N are adjusted for previous ABSusable_ABS
For be disturbed base station available ABS number, Ψ be ABS PRB utilization rate threshold value, ρ is the ABS for being disturbed base station
PRB utilization rate, Δ ρ are the amount of bias of the PRB utilization rate of ABS.
Preferably, the interference base station determines the number of the interference base station adjustment ABS according to formula (2)；
The formula (2) are as follows:
Wherein, Nfinal_ABSThe number of ABS is adjusted for interference base station, P is to be disturbed the corresponding disturbance level in base station,
NeNB_ABSIt is disturbed the number of the second configurable ABS of base station, i is positive integer.
Correspondingly, the embodiment of the present invention provides a kind of device for configuring almost blank subframe ABS, comprising:
Acquiring unit, for obtain it is N number of be disturbed base station send described in be disturbed the ABS use information of base station, N is positive
Integer；
First determination unit, for being disturbed base station for described N number of each of base station that is disturbed, according to described by dry
The number of the ABS use information of base station and the configurable ABS of interference base station is disturbed, first that base station is disturbed described in determination is configurable
The number of ABS；According to of the ABS adjustment state and the first configurable ABS for being disturbed base station for being disturbed base station
It is several, the number of the second configurable ABS of base station is disturbed described in determination；
Second determination unit, for the interference base station according to of N number of second configurable ABS for being disturbed base station
It is several and it is described it is N number of be disturbed the corresponding disturbance level in base station, determine the number of interference base station configuration ABS.
Preferably, the first determination unit is specifically used for:
Within the ABS adjustment state judgement period, the first configurable ABS of base station is disturbed described in the interference base station judgement
The number that occurs of number and the interference base station be whether the ratio of the number for being disturbed base station configuration ABS is greater than ratio
Threshold value；
If so, by the ABS adjustment state judgement period number for being disturbed the ABS that base station is configured it is flat
Mean value is rounded, and the average value after rounding is determined as to the number of the second configurable ABS for being disturbed base station；
Otherwise, the number of the first configurable ABS for being disturbed base station is determined as described being disturbed the second of base station
The number of configurable ABS.
Preferably, second determination unit is specifically used for:
It is disturbed base station for each, the interference base station obtains the metrical information that M edge termination reports and presets dry
It disturbs thresholding to compare, the corresponding disturbance level in base station is disturbed described in acquisition, wherein different disturbance levels corresponds to different interference
Weight coefficient, M are positive integer.
Preferably, the ABS use information for being disturbed base station includes the utilization of the PRB of the ABS for being disturbed base station
The number of rate and the available ABS for being disturbed base station；
First determination unit is specifically used for
The number of the first configurable ABS of base station is disturbed according to formula (1) determination；
The formula (1) are as follows:
Wherein, NeNB_ABS_initFor the number for the first configurable ABS for being disturbed base station, NMacroABS_sfFor interference base station
The number of configurable ABS, Nallocated_ABSThe number of the ABS of periodic disturbances base station configuration, N are adjusted for previous ABSusable_ABS
For be disturbed base station available ABS number, Ψ be ABS PRB utilization rate threshold value, ρ is the ABS for being disturbed base station
PRB utilization rate, Δ ρ are the amount of bias of the PRB utilization rate of ABS.
Preferably, second determination unit is specifically used for:
The number of the interference base station adjustment ABS is determined according to formula (2)；
The formula (2) are as follows:
Wherein, Nfinal_ABSThe number of ABS is adjusted for interference base station, P is to be disturbed the corresponding disturbance level in base station,
NeNB_ABSIt is disturbed the number of the second configurable ABS of base station, i is positive integer.
The embodiment of the present invention shows that interference base station makes by obtaining N number of ABS for being disturbed base station for being disturbed base station transmission
With information, it is disturbed base station for N number of each of base station that is disturbed, interference base station uses letter according to the ABS for being disturbed base station
The number of the configurable ABS of breath and interference base station, determines the number for being disturbed the first configurable ABS of base station, interference base station root
The number that state and the first configurable ABS for being disturbed base station are adjusted according to the ABS for being disturbed base station, determines and is disturbed the of base station
The number of two configurable ABS, interference base station is according to the number of N number of the second configurable ABS for being disturbed base station and N number of is disturbed
The corresponding disturbance level in base station determines the number of interference base station configuration ABS.The embodiment of the present invention is during being adjusted ABS
In view of interference base station and the resource requirement for being disturbed base station and it is disturbed the corresponding disturbance level in base station, so that ABS is configured
It is balanced in demand and interference, while solving convergence time length and existing jitter problem that ABS is configured, improve system
Stability, and then reach reduction edge customer interference, the purpose of lifting system performance and handling capacity.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of flow diagram of method for configuring ABS provided in an embodiment of the present invention；
Fig. 2 is a kind of flow diagram of method for configuring ABS provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of device for configuring ABS provided in an embodiment of the present invention.
Specific embodiment
In order to keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with attached drawing to the application make into
It is described in detail to one step, it is clear that described embodiments are only a part of embodiments of the present application, rather than whole implementation
Example.Based on the embodiment in the application, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall in the protection scope of this application.
In the embodiment of the present invention be disturbed base station can be femto base station in interference base station coverage area, micro-base station,
Home eNodeB, relay node etc. have light and flexible low in energy consumption, small in size, mend the low of the features such as blind and hot spot shunts convenient for covering
Power node, or the base stations such as macro base station.Interference base station is to belong to the interference base station for being disturbed base station, can be macro base
It stands, the base stations such as femto base station, micro-base station, Home eNodeB, relay node.The embodiment of the present invention suitable for wireless communication system,
It is particularly suitable in the heterogeneous network of LTE system.Interference base station can be macro base station in the embodiment of the present invention, but be not limited to macro base
It stands；Being disturbed base station can be micro-base station, but be not limited to micro-base station.The embodiment of the present invention is only example effect, and comparison does not limit
System.
In existing technical solution, most of ABS adjustable strategies mainly consider the load of micro-base station, interference, user information,
Number, utilization rate of ABS of edge customer etc., do not comprehensively consider the factors such as load, the user demand of macro base station, cause
It can be unable to satisfy the minimum resource requirement of macro base station system user after ABS configuration adjustment, and then seriously affect macro base station user's
Performance and user's perception；Simultaneously in the prior art, when the ABS utilization rate information that macro base station receives multiple micro-base stations carries out ABS tune
When whole, macro base station does not consider micro-base station ABS convergence problem, cause to micro-base station configure ABS exist in actual use compared with
Big shake, provides according to existing agreement, ABS be can just come into force at the time of SFN=0, if therefore the number of ABS adjust amplitude
Larger or frequent adjustment, will seriously affect the overall system performance of micro-base station so that micro-base station user occur rate shake with
And situations such as cannot dispatching in time；In addition, the ABS utilization rate information how macro base station integrates all micro-base stations carries out ABS tune
Whole also to become the key for rationally utilizing system resource, there is no consider macro base station to micro-base station from macro base station angle in the prior art
Annoyance level, most macro base stations are information progress ABS adjustment feed back according to micro-base station, therefore will lead to and finally configure
ABS resource is unreasonable, is not being met so that occurring being disturbed big micro-base station ABS several demands, and is disturbed small micro- base
ABS number stand but much larger than actual demand, eventually leads to system resource and wastes, whole net throughput of system decline, Yong Huxing
There can be larger difference.
Based on foregoing description, Fig. 1 shows a kind of process of method for configuring ABS provided in an embodiment of the present invention, the stream
Journey can be executed by the device for configuring ABS, which can be interference base station, can also be located in interference base station.
As shown in Figure 1, the specific steps of the process include:
Step S101, interference base station obtain N number of ABS use information for being disturbed base station for being disturbed base station transmission.
Step S102 is disturbed base station for described N number of each of base station that is disturbed, and the interference base station is according to
Be disturbed the number of the ABS use information of base station and the configurable ABS of the interference base station, determine described in be disturbed the of base station
The number of one configurable ABS；The interference base station is disturbed the ABS adjustment state of base station according to and described is disturbed base station
The first configurable ABS number, determine described in be disturbed base station the second configurable ABS number.
Step S103, number and institute of the interference base station according to N number of second configurable ABS for being disturbed base station
State it is N number of be disturbed the corresponding disturbance level in base station, determine the number of interference base station configuration ABS.
In step s101, the ABS use information for being disturbed base station is to be disturbed base station to pass through Resource Status
Update signaling is sent to interference base station.The ABS use information for being disturbed base station may include: the ABS for being disturbed base station
PRB (Physical Resource Block, Physical Resource Block) utilization rate and be disturbed base station available ABS
Number.
In step s 102, N number of ABS for being disturbed base station for being disturbed base station transmission is got in step S101 use letter
After breath, be disturbed base station for each, interference base station can according to the ABS use information and interference base station for being disturbed base station can
The number of ABS is configured, determines the number for being disturbed the first configurable ABS of base station.The number of the first configurable ABS is by dry
Disturb the number of the first ABS for beginning to match of base station.The number of the configurable ABS of interference base station is that interference base station maximum can be with ABS's
Number is that the number that interference base station user's Minimum requirements subframe can be subtracted with the number of subframe by system obtains.Wherein, it uses
The number of family Minimum requirements subframe indicates to configure in the period in ABS, pairs of all access macro base stations in interference base station coverage area
The indexs such as time delay, rate, the bit error rate, Block Error Rate have the user of high standard and/or have the use of minimum guaranteed rate requirement to business
The number of subframe corresponding to the minimum value of resource needed for family.N is positive integer.
Specifically, interference base station can determine the number for being disturbed the first configurable ABS of base station according to formula (1).
The formula (1) includes:
Wherein, NeNB_ABS_initFor the number for the first configurable ABS for being disturbed base station, NMacroABS_sfFor interference base station
The number of configurable ABS, Nallocated_ABSThe number of the ABS of periodic disturbances base station configuration, N are adjusted for previous ABSusable_ABS
For be disturbed base station available ABS number, Ψ be ABS PRB utilization rate threshold value, ρ is the ABS for being disturbed base station
PRB utilization rate, Δ ρ are the amount of bias of the PRB utilization rate of ABS.
Interference base station, can be according to being disturbed base station after determining and being disturbed the number of the first configurable ABS of base station
Adjustment state and be disturbed base station the first configurable ABS number, determine be disturbed base station the second configurable ABS
Number, the number of the second configurable ABS is to be disturbed the number of the final ABS matched of base station.
The adjustment state of base station is disturbed by two kinds: Ping-Pong states and steady state；Interference base station judgement is disturbed base station
ABS adjustment status method be: interference base station ABS adjustment state judgement the period in judge that this is disturbed the first of base station and can match
The number and interference base station for setting the number appearance of ABS are to be disturbed whether the ratio of the number of base station configuration ABS is more than ratio threshold
Value shows that this is disturbed the ABS of base station and table tennis adjustment occurs, then the ABS adjustment state for being disturbed base station is if being more than
Ping-Pong states, conversely, being then steady state.The proportion threshold value can be empirically configured.
Specifically, interference base station adjudicates the first configurable ABS for being disturbed base station within the ABS adjustment state judgement period
The number that occurs of number and interference base station be to be disturbed base station and configure the ratio of number of ABS whether to be greater than proportion threshold value.If
It is that then the average value for the number for being disturbed the ABS that base station is configured in the ABS adjustment state judgement period is rounded by interference base station,
Average value after rounding is determined as to be disturbed the number of the second configurable ABS of base station.Otherwise, interference base station will be disturbed base
The number of the configurable ABS of first to stand is determined as being disturbed the number of the second configurable ABS of base station.
In step s 103, after interference base station determines the number of N number of the second configurable ABS for being disturbed base station, according to
The number and its corresponding disturbance level of N number of second configurable ABS for being disturbed base station can determine that interference base station configures
The number of ABS.
Base station, the survey of the available M edge termination of interference base station are disturbed for N number of each of base station that is disturbed
Information is measured compared with default interference threshold, is disturbed the corresponding disturbance level in base station to obtain, wherein different disturbance levels
Corresponding different interference weight coefficient, the default interference threshold can empirically be set, and M is positive integer.
The division of disturbance level can be appropriately arranged with according to practical application, such as: disturbance level can be divided into it is high,
In, low three ranks.Specifically, when the metrical information for being disturbed base station that M edge termination reports is respectively less than the first interference door
In limited time, interference base station can determine that the disturbance level for being disturbed base station is low disturbance level.When M edge termination report by dry
The metrical information for disturbing base station is all larger than the first interference threshold and when less than the second interference threshold, and interference base station can be determined and is disturbed
The disturbance level of base station is middle disturbance level.When the metrical information for being disturbed base station that M edge termination reports is all larger than second
When interference threshold, interference base station determines that the disturbance level for being disturbed base station is high interference level.Wherein, the first interference threshold is less than
Second interference threshold, the first interference threshold and the second interference threshold can be empirically configured.It is disturbed the difference of base station
Disturbance level, corresponding different interference weight coefficient, disturbance level is higher, and weight coefficient is bigger；Conversely, weight coefficient is got over
It is small.
Specifically, interference base station can determine the number of interference base station configuration ABS according to formula (2).
The formula (2) are as follows:
Wherein, Nfinal_ABSThe number of ABS is adjusted for interference base station, P is to be disturbed the corresponding disturbance level in base station,
NeNB_ABSIt is disturbed the number of the second configurable ABS of base station, i is positive integer.
Above-described embodiment shows that interference base station is used by obtaining N number of ABS for being disturbed base station for being disturbed base station transmission
Information is disturbed base station for N number of each of base station that is disturbed, and interference base station is according to the ABS use information for being disturbed base station
With the number of the configurable ABS of interference base station, determine be disturbed base station the first configurable ABS number, interference base station according to
It is disturbed the ABS adjustment state of base station and is disturbed the number of the first configurable ABS of base station, determination is disturbed the second of base station
The number of configurable ABS, interference base station is according to the number of N number of the second configurable ABS for being disturbed base station and N number of is disturbed base
It stands corresponding disturbance level, determines the number of interference base station configuration ABS.The embodiment of the present invention is examined during being adjusted ABS
Consider interference base station and the resource requirement for being disturbed base station and be disturbed the corresponding disturbance level in base station, so that ABS configuration exists
It is balanced in demand and interference, while solving convergence time length and existing jitter problem that ABS is configured, it is steady to improve system
It is qualitative, and then reach reduction edge customer interference, the purpose of lifting system performance and handling capacity.
Compared with prior art, the embodiment of the present invention has following advantages and beneficial effects:
Interference base station basis first, which is disturbed base station ABS use information and interference base station maximum, can match the number meter of ABS
The number for the ABS matched that begins at the beginning of being disturbed base station is calculated, while interference base station adjusts state and meter according to the ABS for being disturbed base station
The obtained base station number with ABS that just begins that is disturbed obtains and is disturbed the number of the ABS that base station can finally match, and the present invention exists
While ensure that the minimum resources demand of system, and solves shake existing for the convergence time length and ABS configuration of ABS and ask
Topic improves system stability, and then reaches the edge customer interference that reduction is disturbed base station, promotes whole net system performance and handles up
The purpose of amount.
Secondly interference base station is according to the number for being disturbed the ABS that base station can finally match and to be disturbed base station disturbance level true
The number for determining the ABS that macro base station finally configures, while guaranteeing that system needs, it is contemplated that different micro-base stations and interference base station
Disturbed condition so that ABS configuration demand and interference in be balanced, priority support is disturbed serious micro-base station demand,
The waste for reducing system resource simultaneously achievees the effect that improve resource utilization.
In order to preferably explain the embodiment of the present invention, will be provided below below in conjunction with specifically scene is practiced
Carry out under concrete application scene the process of configuration ABS.
The method of configuration ABS applied to LTE heterogeneous network a kind of is provided in the embodiment of the present invention.The embodiment of the present invention
In, interference base station is macro base station, and being disturbed base station is micro-base station.Macro base station is according to micro-base station ABS use information and macro base station
The number for the ABS that maximum can match with the number estimation micro-base station of ABS；The number for the ABS that macro base station can match according to micro-base station with
And macro micro- disturbance level determines the number for the ABS that macro base station finally configures.The embodiment of the present invention had both guaranteed during ABS is adjusted
The minimum resources demand of macro micro-base station system is it is further contemplated that macro micro- annoyance level, so that ABS configuration is in demand and interference
To balance, while there are jitter problem, raising system stability for the convergence time length for solving ABS and ABS configuration, and then reach
Edge customer interference is reduced, the purpose of whole net system performance and handling capacity is promoted.
The method that ABS is configured in the embodiment of the present invention is described in detail below.
As shown in Fig. 2, to configure the flow chart of the method for ABS in the embodiment of the present invention, which is used for all macro base stations
In, specifically include step S201- step S203:
Step S201, macro base station obtain the ABS use information for the micro-base station that N number of micro-base station is sent.
In the step S201 micro-base station ABS use information include: the utilization rate ρ of the PRB of micro-base station ABS and micro-base station can
The number N of ABSusable_ABS, these information are that micro-base station is sent to by Resource Status Update signaling
Macro base station.
Macro base station maximum can match the number N of ABS in the step S201MacroABS_sfIt is that can be subtracted with number of sub frames by system
Macro base station user's Minimum requirements number of sub frames obtains, and wherein user's Minimum requirements number of sub frames indicated within the ABS configuration period, macro base station
In coverage area it is all access macro base stations to the indexs such as time delay, rate, the bit error rate, Block Error Rate have high standard user and/or
The number of subframe corresponding to the minimum value of resource needed for having the user of minimum guaranteed rate requirement to business.ABS configures the period
It is in LTE protocol in order to next with ascending HARQ (Hybrid Automatic Report Request, hybrid automatic repeat-request)
The a cycle returning time unifying and being arranged, it is related with system subframe configuration, such as TDD standard, when subframe is configured to 1
When~5, the ABS configuration period is 20 subframes, i.e. 2 radio frames, and wherein the downlink subframe sum in this 20 subframes is 12；It is right
In FDD standard, the unified ABS configuration period is 40ms, i.e. 4 radio frames, and wherein the downlink subframe sum in this 40 subframes is
40；
For example, macro base station is in the case that 20M sub-frame configuration is 1 in system bandwidth, and the corresponding ABS period is
It is 12 that 20ms, ABS, which configure downlink subframe sum in the period,.Within the ABS configuration period, its GBR in current macro base station coverage area
It is 8 with minimum number of sub frames needed for N-GBR user, the number N of ABS can be matched by obtaining macro base station maximumMacroABS_sfIt is 4.
Step S202, for each micro-base station in N number of micro-base station, macro base station according to the ABS use information of micro-base station and
The number for the ABS that the maximum of macro base station can match, determines the number of the first ABS for beginning to match of micro-base station；Macro base station is according to micro-base station
ABS adjustment state and micro-base station the first ABS for beginning to match number, determine the number of the final ABS matched of micro-base station.
Macro base station is obtained according to the number of the ABS configured in micro-base station ABS use information and the macro base station last adjustment period
The valuation of the next configuration period ABS of micro-base station.Just the begin number of the ABS matched of micro-base station is to take the micro-base station next configuration period
The valuation of ABS and the maximum of macro base station can be with the minimum values of the number of ABS.It can specifically be determined according to formula (1).
Such as:
There are two micro-base station pico1 and pico2 in macro base station coverage area, and macro base station is in last adjustment period assignment
The number N of ABSallocated_ABSThe PRB utilization rate of the threshold value Ψ=95%, ABS of the PRB utilization rate of=3, preset ABS
Amount of bias Δ ρ=0.2.
Macro base station receives the ABS use information that pico1 and pico2 are reported and is respectively as follows:
For micro-base station pico1, the utilization rate ρ of the PRB of ABS1The number N of=98%, available ABSusable_ABS1=
3, the number of its ABS matched that just begins can be calculated according to above-mentioned formula are as follows:
For micro-base station pico2, the utilization rate ρ of the PRB of ABS2The number N of=65%, available ABSusable_ABS2=
4, the number of its ABS matched that just begins can be calculated according to above-mentioned formula (1) are as follows:
In the step S202 there are two types of the ABS adjustment states of micro-base station: Ping-Pong states and steady state；Macro base station judgement
The ABS adjustment status method of micro-base station is: macro base station begins to match at the beginning of judging the micro-base station within the ABS adjustment state judgement period
Whether the ratio that the number of ABS occurs more than ABS table tennis adjustment ratio pre-determined threshold shows the ABS of the micro-base station if being more than
There is table tennis adjustment, then the ABS adjustment state of the micro-base station is Ping-Pong states, conversely, being then steady state；
For example, for the number of micro-base station pico1, the macro base station ABS configured within the ABS adjustment state judgement period
Respectively 4,5,4,2,4 and 3, the number that current micro-base station pico1 just begins to match ABS is 4, it can be found that the value is adjusted in ABS
State occurs 3 times in the judgement period, and the ratio of appearance is 3/5=60%, is greater than ABS table tennis adjustment ratio pre-determined threshold 50%,
ABS shows that table tennis adjustment occurs in the ABS of the micro-base station at this time, then the ABS adjustment state of the micro-base station is Ping-Pong states；
For micro-base station pico2, the number of ABS that macro base station configures within the ABS adjustment state judgement period is respectively 4,
5, the number that 4,3 and 4, current micro-base station pico2 just begin to match ABS is 3, it can be found that the value is in ABS adjustment state judgement week
Occur 1 time in phase, the ratio of appearance is 1/5=20%, shows the ABS subframe adjustment of the micro-base station in steady state at this time；
The preparation method of the number for the ABS that micro-base station can finally match in the step 102 are as follows: if the ABS of micro-base station is adjusted
State is Ping-Pong states, then the number for the ABS that micro-base station can finally match is that the micro-base station is matched in ABS adjusts the state judgement period
The arithmetic mean of instantaneous value of the number of the ABS set simultaneously rounds up；If the ABS adjustment state of micro-base station is steady state, micro-base station
The number for the ABS that can finally match is that micro-base station just begins the number with ABS；
Begin the number with ABS at the beginning of adjusting state and micro-base station from micro-base station ABS obtained above:
The ABS adjustment state of micro-base station pico1 is Ping-Pong states, then the number for the ABS that micro-base station can finally match is that this is micro-
The arithmetic mean of instantaneous value of the number for the ABS that base station configures within the ABS adjustment state judgement period simultaneously rounds up, i.e.,
The ABS adjustment state of micro-base station pico2 is steady state, then the number for the ABS that micro-base station pico2 can finally match is
Begin the number 3 with ABS at the beginning of micro-base station.
Step S203, macro base station are corresponding according to the number of the final ABS matched of N number of micro-base station and N number of micro-base station
Disturbance level determines that macro base station finally configures the number of ABS.
In the step S203, micro-base station that micro-base station disturbance level can be reported by macro base station according to its edge customer measurement
Metrical information be compared acquisition with default interference threshold；Wherein different disturbance level, corresponding different interference weight system
Number, disturbance level is higher, and weight coefficient is bigger；Conversely, weight coefficient is smaller.
For example, macro base station determines according to the micro-base station metrical information that its edge customer measurement reports, when all edges are used
When the metrical information for the micro-base station that family reports is respectively less than default interference threshold 1, then show interference of the micro-base station by macro base station
Very little, then the disturbance level of the micro-base station is set as low interference, when the metrical information for the micro-base station for having edge customer to report is greater than in advance
If when interference threshold 2, then showing that the micro-base station is very big by the interference of macro base station, then the disturbance level of the micro-base station is set as high level cadre
It disturbs, remaining corresponding disturbance level of micro-base station for being unsatisfactory for the two conditions is set as middle interference, while different do can be set
Disturb the corresponding interference weight coefficient of grade:
When the disturbance level of micro-base station is high interference, Pi=1；
When the disturbance level of micro-base station is middle interference, Pi=0.8；
When the disturbance level of micro-base station is low interference, Pi=0.5；In the step S203, macro base station can be according to public affairs
Formula (2) determines that macro base station finally configures the number of ABS.
For example, the number for the ABS that above-mentioned micro-base station pico1 and pico2 can finally match is 4 and 3, macro base station is used according to edge
The micro-base station metrical information that family reports determines that micro-base station pico1 is middle interference, and micro-base station pico2 is high interference, then macro base station
The number of the ABS finally configured are as follows:
Based on the same technical idea, Fig. 3 shows a kind of knot of device for configuring ABS provided in an embodiment of the present invention
Structure, the device can execute the process of configuration ABS, which can be located in interference base station, be also possible to interference base station.
As shown in figure 3, the device specifically includes:
Acquiring unit 301, for obtain it is N number of be disturbed base station send described in be disturbed the ABS use information of base station, N
For positive integer；
First determination unit 302, for being disturbed base station for described N number of each of base station that is disturbed, according to described
It is disturbed the number of the ABS use information of base station and the configurable ABS of interference base station, being disturbed the first of base station described in determination can
Configure the number of ABS；According to the ABS adjustment state for being disturbed base station and the first configurable ABS for being disturbed base station
Number, determine described in be disturbed base station the second configurable ABS number；
Second determination unit 303, for the interference base station according to N number of second configurable ABS for being disturbed base station
Number and it is described it is N number of be disturbed the corresponding disturbance level in base station, determine the number of interference base station configuration ABS.
Preferably, the first determination unit 302 is specifically used for:
Within the ABS adjustment state judgement period, the first configurable ABS of base station is disturbed described in the interference base station judgement
The number that occurs of number and the interference base station be whether the ratio of the number for being disturbed base station configuration ABS is greater than ratio
Threshold value；
If so, by the ABS adjustment state judgement period number for being disturbed the ABS that base station is configured it is flat
Mean value is rounded, and the average value after rounding is determined as to the number of the second configurable ABS for being disturbed base station；
Otherwise, the number of the first configurable ABS for being disturbed base station is determined as described being disturbed the second of base station
The number of configurable ABS.
Preferably, second determination unit 303 is specifically used for:
It is disturbed base station for each, the interference base station obtains the metrical information that M edge termination reports and presets dry
It disturbs thresholding to compare, the corresponding disturbance level in base station is disturbed described in acquisition, wherein different disturbance levels corresponds to different interference
Weight coefficient, M are positive integer.
Preferably, the ABS use information for being disturbed base station includes the utilization of the PRB of the ABS for being disturbed base station
The number of rate and the available ABS for being disturbed base station；
First determination unit 302 is specifically used for
The number of the first configurable ABS of base station is disturbed according to formula (1) determination；
The formula (1) are as follows:
Wherein, NeNB_ABS_initFor the number for the first configurable ABS for being disturbed base station, NMacroABS_sfFor interference base station
The number of configurable ABS, Nallocated_ABSThe number of the ABS of periodic disturbances base station configuration, N are adjusted for previous ABSusable_ABS
For be disturbed base station available ABS number, Ψ be ABS PRB utilization rate threshold value, ρ is the ABS for being disturbed base station
PRB utilization rate, Δ ρ are the amount of bias of the PRB utilization rate of ABS.
Preferably, second determination unit 303 is specifically used for:
The number of the interference base station adjustment ABS is determined according to formula (2)；
The formula (2) are as follows:
Wherein, Nfinal_ABSThe number of ABS is adjusted for interference base station, P is to be disturbed the corresponding disturbance level in base station,
NeNB_ABSIt is disturbed the number of the second configurable ABS of base station, i is positive integer.
Reference is according to the method for the embodiment of the present application, flow chart and/or the side of equipment (system) and computer program product
Block diagram describes.It should be understood that each process and/or the side in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in frame and flowchart and/or the block diagram.These computer program instructions be can provide to logical
With the processor of computer, special purpose computer, Embedded Processor or other programmable data processing devices to generate a machine
Device, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for realizing in process
The device for the function of being specified in figure one process or multiple processes and/or block diagrams one box or multiple boxes.
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 the preferred embodiment of the application has 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 application range.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (10)
1. a kind of method for configuring almost blank subframe ABS characterized by comprising
Interference base station obtains N number of ABS use information for being disturbed base station for being disturbed base station transmission, and N is positive integer；
It is disturbed base station for described N number of each of base station that is disturbed, the interference base station is disturbed base station according to
The number of the configurable ABS of ABS use information and the interference base station, determine described in be disturbed the first configurable ABS of base station
Number；The interference base station is disturbed the ABS adjustment state of base station according to and described be disturbed the first of base station and can match
The number of ABS is set, the number of the second configurable ABS of base station is disturbed described in determination；
The interference base station is according to the number of N number of second configurable ABS for being disturbed base station and described N number of is disturbed base
It stands corresponding disturbance level, determines the number of the interference base station configuration ABS.
2. the method as described in claim 1, which is characterized in that the interference base station is disturbed the ABS tune of base station according to
The number of whole state and the first configurable ABS for being disturbed base station, determine described in be disturbed the second configurable ABS of base station
Number, comprising:
Within the ABS adjustment state judgement period, of the first configurable ABS of base station is disturbed described in the interference base station judgement
It counts existing number and the interference base station is whether the ratio for being disturbed the number that base station configures ABS is greater than ratio threshold
Value；
If so, the interference base station is disturbed ABS's that base station is configured for described in the ABS adjustment state judgement period
The average value of number is rounded, and the average value after rounding is determined as to the number of the second configurable ABS for being disturbed base station；
Otherwise, the number of the first configurable ABS for being disturbed base station is determined as described being disturbed base by the interference base station
The number of the configurable ABS of second to stand.
3. the method as described in claim 1, which is characterized in that the interference base station according to following step determine it is described it is N number of by
The corresponding disturbance level of interference base station:
It is disturbed base station for each, the interference base station obtains the metrical information that M edge termination reports and default interference door
Limit compares, and the corresponding disturbance level in base station is disturbed described in acquisition, wherein different disturbance levels corresponds to different interference weights
Coefficient, M are positive integer.
4. the method as described in claim 1, which is characterized in that the ABS use information for being disturbed base station include it is described by
The number of the utilization rate of the PRB of the ABS of interference base station and the available ABS for being disturbed base station；
The interference base station is disturbed the number of the first configurable ABS of base station according to formula (1) determination；
The formula (1) are as follows:
Wherein, NeNB_ABS_initFor the number for the first configurable ABS for being disturbed base station, NMacroABS_sfFor matching for interference base station
Set the number of ABS, Nallocated_ABSThe number of the ABS of periodic disturbances base station configuration, N are adjusted for previous ABSusable_ABSFor by
The number of the available ABS of interference base station, ψ are the threshold value of the PRB utilization rate of ABS, and ρ is the PRB benefit for being disturbed the ABS of base station
With rate, Δ ρ is the amount of bias of the PRB utilization rate of ABS.
5. the method as described in claim 1, which is characterized in that the interference base station determines the interference base according to formula (2)
It stands and adjusts the number of ABS；
The formula (2) are as follows:
Wherein, Nfinal_ABSThe number of ABS, P are adjusted for interference base station1The corresponding disturbance level in base station, P are disturbed for the 1st2For
2nd is disturbed the corresponding disturbance level in base station, PiThe corresponding disturbance level in base station, N are disturbed for i-theNB_ABS1It is the 1st
It is disturbed the number of the second configurable ABS of base station, NeNB_ABS2The number of the second configurable ABS of base station is disturbed for the 2nd,
NeNB_ABSiThe number of the second configurable ABS of base station is disturbed for i-th, i is the positive integer less than or equal to N.
6. a kind of device for configuring almost blank subframe ABS characterized by comprising
Acquiring unit, for obtain it is N number of be disturbed base station send described in be disturbed the ABS use information of base station, N is positive whole
Number；
First determination unit is disturbed base according to described for being disturbed base station for described N number of each of base station that is disturbed
The number of the configurable ABS of the ABS use information and interference base station stood, determine described in be disturbed the first configurable ABS of base station
Number；The number of state and the first configurable ABS for being disturbed base station is adjusted according to the ABS for being disturbed base station,
The number of the second configurable ABS of base station is disturbed described in determination；
Second determination unit, for the interference base station according to the number of N number of second configurable ABS for being disturbed base station with
And it is described it is N number of be disturbed the corresponding disturbance level in base station, determine the number of interference base station configuration ABS.
7. device as claimed in claim 6, which is characterized in that the first determination unit is specifically used for:
Within the ABS adjustment state judgement period, of the first configurable ABS of base station is disturbed described in the interference base station judgement
It counts existing number and the interference base station is whether the ratio for being disturbed the number that base station configures ABS is greater than ratio threshold
Value；
If so, by the average value of the number for being disturbed the ABS that base station is configured in the ABS adjustment state judgement period
It is rounded, the average value after rounding is determined as to the number of the second configurable ABS for being disturbed base station；
Otherwise, the number of the first configurable ABS for being disturbed base station is determined as described being disturbed the second of base station and can matching
Set the number of ABS.
8. device as claimed in claim 6, which is characterized in that second determination unit is specifically used for:
It is disturbed base station for each, the interference base station obtains the metrical information that M edge termination reports and default interference door
Limit compares, and the corresponding disturbance level in base station is disturbed described in acquisition, wherein different disturbance levels corresponds to different interference weights
Coefficient, M are positive integer.
9. device as claimed in claim 6, which is characterized in that the ABS use information for being disturbed base station include it is described by
The number of the utilization rate of the PRB of the ABS of interference base station and the available ABS for being disturbed base station；
First determination unit is specifically used for
The number of the first configurable ABS of base station is disturbed according to formula (1) determination；
The formula (1) are as follows:
Wherein, NeNB_ABS_initFor the number for the first configurable ABS for being disturbed base station, NMacroABS_sfFor matching for interference base station
Set the number of ABS, Nallocated_ABSThe number of the ABS of periodic disturbances base station configuration, N are adjusted for previous ABSusable_ABSFor by
The number of the available ABS of interference base station, ψ are the threshold value of the PRB utilization rate of ABS, and ρ is the PRB benefit for being disturbed the ABS of base station
With rate, Δ ρ is the amount of bias of the PRB utilization rate of ABS.
10. device as claimed in claim 6, which is characterized in that second determination unit is specifically used for:
The number of the interference base station adjustment ABS is determined according to formula (2)；
The formula (2) are as follows:
Wherein, Nfinal_ABSThe number of ABS, P are adjusted for interference base station1The corresponding disturbance level in base station, P are disturbed for the 1st2For
2nd is disturbed the corresponding disturbance level in base station, PiThe corresponding disturbance level in base station, N are disturbed for i-theNB_ABS1It is the 1st
It is disturbed the number of the second configurable ABS of base station, NeNB_ABS2The number of the second configurable ABS of base station is disturbed for the 2nd,
NeNB_ABSiThe number of the second configurable ABS of base station is disturbed for i-th, i is the positive integer less than or equal to N.
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| CN106455080B (en) * | 2016-10-25 | 2019-10-25 | 中国联合网络通信集团有限公司 | A kind of dispatching method and communications network system based on macro micro- collaboration |
| CN106792807B (en) * | 2016-12-07 | 2018-04-03 | 吴光宇 | A kind of broad sense interference model and distributed ABS time slots cut-in method |
| CN108811065B (en) * | 2018-05-28 | 2021-06-22 | 京信通信系统（中国）有限公司 | Method and device for adjusting transmission power of almost blank subframe and computer equipment |
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| CN103313312A (en) * | 2012-03-07 | 2013-09-18 | 中兴通讯股份有限公司 | Method, device and system for configuring heterogeneous network ABS |
| CN105072695A (en) * | 2015-08-27 | 2015-11-18 | 京信通信系统（中国）有限公司 | Mode adjustment method and device for nearly blank sub-frame in heterogeneous network |
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| WO2014019874A1 (en) * | 2012-08-03 | 2014-02-06 | Nokia Siemens Networks Oy | Interference measurement resource (imr) signaling and use to support interference coordination between cells |
| US9288804B2 (en) * | 2014-04-25 | 2016-03-15 | Cisco Technology, Inc. | Almost blank subframe based orthogonal resource allocation in a wireless network environment |
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| CN103313312A (en) * | 2012-03-07 | 2013-09-18 | 中兴通讯股份有限公司 | Method, device and system for configuring heterogeneous network ABS |
| CN105072695A (en) * | 2015-08-27 | 2015-11-18 | 京信通信系统（中国）有限公司 | Mode adjustment method and device for nearly blank sub-frame in heterogeneous network |
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