CN107509209A - A kind of method and device for optimizing heterogeneous network efficiency - Google Patents

A kind of method and device for optimizing heterogeneous network efficiency Download PDF

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Publication number
CN107509209A
CN107509209A CN201710681424.2A CN201710681424A CN107509209A CN 107509209 A CN107509209 A CN 107509209A CN 201710681424 A CN201710681424 A CN 201710681424A CN 107509209 A CN107509209 A CN 107509209A
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China
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candidate
macro base
base stations
cre
base station
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Inventor
王友祥
孙乐
韩潇
马玥
范斌
王玫
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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Priority to CN201710681424.2A priority Critical patent/CN107509209A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0075—Allocation using proportional fairness
    • 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
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the present invention provides a kind of method and device for optimizing heterogeneous network efficiency, and to provide a kind of effective spectrum efficiency and handling capacity for improving edge customer equipment, the efficiency of heterogeneous network system is improved while guaranteeing fairness, including：The first configuration information of the state of candidate resource block on macro base station is configured to indicate that more than the macro base station of predetermined threshold value for interference in heterogeneous network；According to the first configuration information, using the state of candidate RB on dynamic node silence technological adjustment macro base station；According to CRE UE in the micro-base station in macro base station coverage and non-CRE UE ratios, the ratio of the subframe of the almost blank of macro base station is determined；Using the power control algorithms based on game theory, the transmission power of macro base station is adjusted.When implementing dynamic node silence technology, according to CRE UE in the micro-base station in macro base station coverage and non-CRE UE ratios, dynamic adjusts ABS ratios, so as to adapt to different CRE biasings.

Description

A kind of method and device for optimizing heterogeneous network efficiency
Technical field
The present embodiments relate to the communications field, more particularly to a kind of method and device for optimizing heterogeneous network efficiency.
Background technology
In order to further meet the needs of wireless user is to seamless coverage, more high data rate traffic, third generation cooperation partner Long Term Evolution upgrading is being studied and is formulating with plan (3rd Generation Partnership Project, 3GPP) Version (Long Term Evolution Advanced, LTE-A) standard.In order to improve the spectrum efficiency in per unit region, change The topological structure of traditional macrocellular network, heterogeneous network (Heterogeneous Network, HetNet) technology are marked by LTE-A Standardization tissue is proposed, and turns into one of key technology in LTE-A standard formulations.Heterogeneous network technologies are by by grand (macro) Honeycomb and distal end radio node, low power nodes (such as pico- (pico) honeycomb, Home eNodeB, relaying) mixed networking, are shortened The space propagation distance of wireless signal between transmitter and receiver, so as to which spectrum space reusability is substantially improved, obtain Higher message transmission rate.
To avoid the user equipment (User Equipment, UE) in Pico cells (cell) from receiving physical down control Can be by from macro cell during data on channel (Physical Downlink Control Channel, PDCCH) Severe jamming, 3GPP set up enhancement type district interference coordination (Enhanced Inter-Cell Interference Coordination, eICIC) technology, the core of its technology is exactly the subframe by setting the almost blank of macro base stations (Almost Blank Subframe, ABS) so that micro-base station dispatches its edge customer equipment on ABS, and macro base stations exist ABS is not scheduled to the user equipment in macro base stations, and so doing obviously can improve user equipment in Pico cell Handling capacity (the especially handling capacity of cell range extension (CRE, Cell Range Expansion) user equipment) and system Efficiency, but leverage handling capacity (the especially macrocell edge customer equipment of user equipment in macro cell Handling capacity).On the other hand, although larger feelings can also be biased in CRE in ABS subframes using the thinking of drop power Under condition, because CRE user equipmenies are more, if using drop power transmission in macro base station ABS subframes, if drop performance number is not big enough, The handling capacity of user equipment in Pico cell can not then be lifted well again.So existing ABS technologies are easy to cause Macro base stations and the unjustness of Pico base stations.
In addition, in conventional solution the ABS subframes of all macrocells configuration ratio all same, and the ratio of ABS subframes Example immobilizes, and is all one so in whole Transmission Time Interval (transmission time interval, TTI) circulation Individual definite value.But because different sector loads is different, and the load of common sector is dynamic change, fixed ABS subframes are not Each sector can be met for the demand of the ABS subframe ratios to match with own load, therefore seriously constrain heterogeneous network The system energy efficiency (Energy efficiency) of network.
The content of the invention
The embodiment of the present invention provides a kind of method and device for optimizing heterogeneous network efficiency, is effectively carried to provide one kind The spectrum efficiency and handling capacity of high rim user equipment, the efficiency of heterogeneous network system is improved while guaranteeing fairness.
In a first aspect, the embodiment of the present invention provides a kind of method for optimizing heterogeneous network efficiency, including：For in heterogeneous network Interference configures the first configuration information more than the grand Macro base stations of predetermined threshold value, and first configuration information is used to indicate Macro base stations Upper candidate resource block RB state, wherein, candidate RB includes one or more micro- Pico bases for candidate user devices UE services Corresponding RB on the grand Macro base stations stood where it；According to the first configuration information, adjusted using dynamic node silence DPB technologies Candidate RB state on whole Macro base stations；Extended according to cell range in micro- Pico base stations in Macro base station ranges CRE UE and non-CRE UE ratios, determine the subframe ABS of the almost blank of Macro base stations ratio；Using based on game theory Power control algorithms, the transmission power of Macro base stations is adjusted.
The embodiment of the present invention provides a kind of method for optimizing heterogeneous network efficiency, by enhancement type district interference coordination technique Combined with the dynamic node silence technology in CoMP, in the case where CRE biasings are larger, by disturbing more than predetermined threshold value The first configuration information is distributed in grand Macro base stations, and adjusts the state of RB in macro base station, because RB state is without being to close It is to open, therefore, can so closes the corresponding RB that the CRE user poor to channel quality disturbs larger macro base station, enter one Step reduces the interference of the CRE user larger to quantity, that is, improves the spectrum efficiency and handling capacity of CRE user, and because grand RB silences on base station reduce energy consumption, meet the concept of green communications.In addition, the present invention is implementing dynamic node silence technology When, CRE UE and non-CRE UE ratios are extended according to cell range in micro- Pico base stations in Macro base station ranges, Dynamic adjustment ABS ratios, so as to adapt to different CRE biasings.Simultaneously by the power control algorithms based on game theory, power domain is proposed The resource allocation optimization scheme of aspect, suitable transmission power is provided for the Macro base stations under each ABS, so as to take into account efficiency And fairness, allow systematic function to reach optimum state.
With reference in a first aspect, in the first possible implementation of first aspect, it is more than to be disturbed in heterogeneous network Before the grand Macro base stations of predetermined threshold value configure the first configuration information, method provided in an embodiment of the present invention also includes：For cooperation Collection one preconfigured information of distribution, the collaboration set include one or more candidate UE, and candidate UE throughput value meets default want Ask, the preconfigured information is used to indicate the Macro bases for the Pico base stations that each candidate UE is serviced where respective in collaboration set The state stood on upper corresponding resource block RB；According to preconfigured information, each resource block RB on Macro base stations is obtained successively All candidate UE throughput value sum under different conditions；Gulping down for all candidate UE under different conditions is according to each RB Value sum and the preconfigured information are told, updates in the preconfigured information each candidate UE in each self-corresponding Macro Corresponding RB states on base station；The each candidate UE obtained afterwards corresponding RB on each self-corresponding Macro base stations will be updated State, it is defined as the first configuration information.
With reference to the possible implementation of the first of first aspect or first aspect, second in first aspect is possible In implementation, the throughput value sum and preconfigured information of all candidate UE under different conditions are according to each RB, more Each candidate UE corresponding RB states on each self-corresponding Macro base stations in new preconfigured information, including：To each candidate UE In any one candidate UE perform following steps, to update each each self-corresponding Macro bases of candidate UE in preconfigured information RB state corresponding on standing：RB corresponding to obtaining the Macro base stations of a candidate UE in each candidate UE is in opening state Under state, RB corresponding to throughput value sum and a candidate UE Macro base stations corresponding to each candidate UE is in silence Under state, throughput value sum corresponding to each candidate UE；If a candidate UE is under silent status, each candidate UE is corresponding Throughput value sum be in more than the candidate UE under opening, throughput value sum corresponding to each candidate UE, it is determined that Corresponding RB state is silent status on macro base station corresponding to one candidate UE；If a candidate UE is under silent status, Throughput value sum corresponding to each candidate UE is under opening less than the candidate UE, handling capacity corresponding to each candidate UE It is worth sum, it is determined that corresponding RB state is opening on macro base station corresponding to a candidate UE.
Any one of second of possible implementation with reference to first aspect to first aspect, the 3rd of first aspect the In the possible implementation of kind, the corresponding RB on each each self-corresponding Macro base stations of candidate UE in preconfigured information is updated State during, according to the first preset order by corresponding to previous candidate UE on macro base station after the renewal of corresponding RB states Obtained alternative configurations information, the configuration as the corresponding RB state on Macro base stations corresponding to the latter candidate UE that updates Information.
Any one of the third possible implementation with reference to first aspect to first aspect, the 4th of first aspect the In the possible implementation of kind, before distributing a preconfigured information for collaboration set, method provided in an embodiment of the present invention is also wrapped Include：Obtain the throughput value of the multiple CRE UE for the respective service that each Pico base stations report in multiple measurement collection, the measurement collection All Pico base stations including a Macro base station and in Macro base station ranges；According to each Pico in multiple measurement collection The multiple CRE UE for the respective service that base station reports throughput value, throughput value in multiple measurement collection is met into preset requirement One or more CRE UE determine the candidate UE in collaboration set.
Any one of the 4th kind of possible implementation with reference to first aspect to first aspect, the 5th of first aspect the In the possible implementation of kind, a preconfigured information is distributed for collaboration set, including：By one or more candidate UE handling capacity Value sorts according to the second preset order；It is every in one or more candidate UE according to one or more candidate UE ranking results Individual candidate UE distributes a numbering；A designator is distributed for each candidate UE, and by designator corresponding to candidate UE according to the Two preset orders sort, and think that collaboration set distributes a preconfigured information.
Any one of the 5th kind of possible implementation with reference to first aspect to first aspect, the 6th of first aspect the In kind possible implementation, the first configuration information includes multiple designators, each designator and one in the plurality of designator Candidate UE is corresponding, and the designator be the first designator or the second designator, wherein, the first designator is expressed as what candidate UE was serviced State on resource block RB of micro- Pico base stations on the grand Macro base stations where it is opening, the second designator table The state being shown as on resource block RB of the micro- Pico base stations of candidate UE services on the grand Macro base stations where it is silent shape State.
Any one of the 6th kind of possible implementation with reference to first aspect to first aspect, the 7th of first aspect the In the possible implementation of kind, ABS configurations subframe includes variable subframe, according to micro- Pico bases in Macro base station ranges Cell range extension CRE user equipment (UE)s and non-CRE user's ratio in standing, determine the subframe ABS of the almost blank of Macro base stations Ratio, including：Statistical measurement concentrates CRE UE quantity and non-CRE UE quantity in Pico base stations；Determine CRE UE's Pass in quantity and non-CRE UE ratio of number and ABS sub-frame numbers and a cycle between the ratio of number of all subframes System；According to CRE UE quantity and non-CRE UE ratio of number and the number of ABS sub-frame numbers and all subframes in a cycle Relation between the ratio between amount, the type of variable subframe is adjusted, to determine the subframe ABS of the almost blank of Macro base stations ratio, Type is ABS subframes or common subframe.
Second aspect, the embodiment of the present invention provide a kind of device for optimizing heterogeneous network efficiency, including：Dispensing unit, use Interference configures the first configuration information more than the grand Macro base stations of predetermined threshold value in for heterogeneous network, and first configuration information is used In the state of candidate resource block RB on instruction macro base station, wherein, candidate RB includes one or more for candidate user devices UE clothes RB of the micro- Pico base stations of business on the grand Macro base stations where it；Adjustment unit, for according to the first configuration information, using Candidate RB state on dynamic node silence DPB technological adjustment macro base stations；Determining unit, for covering model according to Macro base stations Cell range extension CRE UE and non-CRE UE ratios in interior micro- Pico base stations are enclosed, determines the almost blank of Macro base stations Subframe ABS ratio；Adjustment unit, it is additionally operable to utilize the power control algorithms based on game theory, the transmission power of Macro base stations is entered Row adjustment.
With reference to second aspect, in the first possible implementation of second aspect, dispensing unit, it is additionally operable to as cooperation Collection one preconfigured information of distribution, the collaboration set include one or more candidate UE, and candidate UE throughput value meets default want Ask, preconfigured information is used to indicate the Macro base stations for the Pico base stations that each candidate UE is serviced where respective in collaboration set State corresponding to upper on resource block RB；Device provided in an embodiment of the present invention, in addition to：Acquiring unit, for according to prewired Confidence ceases, and obtains the throughput value that each resource block RB on Macro base stations is in all candidate UE under different conditions successively Sum；Updating block, for being under different conditions all candidate UE throughput value sum and pre-configured according to each RB Information, update each candidate UE corresponding RB states on each self-corresponding Macro base stations in preconfigured information；Determining unit, It is additionally operable to that each candidate UE for obtaining afterwards corresponding RB states on each self-corresponding Macro base stations will be updated, is defined as the One configuration information.
With reference in the possible implementation of the first of second aspect or second aspect, second in second aspect may Implementation in, updating block, be specifically used for：Following steps are performed to any one candidate UE in each candidate UE, with Update the state of corresponding RB on each each self-corresponding Macro base stations of candidate UE in preconfigured information：Obtain each candidate UE In a candidate UE Macro base stations corresponding to RB be under opening, throughput value sum corresponding to each candidate UE And RB is under silent status corresponding to candidate UE Macro base stations, throughput value sum corresponding to each candidate UE； If a candidate UE is under silent status, throughput value sum corresponding to each candidate UE is in opening state more than the candidate UE Under state, throughput value sum corresponding to each candidate UE, it is determined that corresponding to a candidate UE on macro base station corresponding RB shape State is silent status；If a candidate UE is under silent status, throughput value sum corresponding to each candidate UE is less than the time UE is selected to be under opening, throughput value sum corresponding to each candidate UE, it is determined that macro base station corresponding to a candidate UE RB state is opening corresponding to upper.
Any one of second of possible implementation with reference to second aspect to second aspect, the 3rd of second aspect the In the possible implementation of kind, updating block is in preconfigured information is updated on each each self-corresponding Macro base stations of candidate UE During corresponding RB state, specifically for according to the first preset order by corresponding to previous candidate UE on macro base station it is right The alternative configurations information obtained after the RB states renewal answered, corresponded to as updating corresponding to the latter candidate UE on Macro base stations RB state configuration information.
Any one of the third possible implementation with reference to second aspect to second aspect, the 4th of second aspect the In the possible implementation of kind, acquiring unit, it is additionally operable to obtain the respective service that each Pico base stations report in multiple measurement collection Multiple CRE UE throughput value, measurement collection include a Macro base station and all Pico in Macro base station ranges Base station；Determining unit, it is additionally operable to according to the multiple CRE UE for the respective service that each Pico base stations report in multiple measurement collection Throughput value, throughput value in multiple measurement collection is met that one or more CRE UE of preset requirement determine the time in collaboration set Select UE.
Any one of the 4th kind of possible implementation with reference to second aspect to second aspect, the 5th of second aspect the In the possible implementation of kind, dispensing unit, specifically for one or more candidate UE throughput value is preset according to second Order sorts；And it is each candidate in one or more candidate UE for the ranking results according to one or more candidate UE UE distributes a numbering；And for for each candidate UE distribute a designator, and by designator corresponding to candidate UE according to Second preset order sorts, and thinks that collaboration set distributes a preconfigured information.
Any one of the 5th kind of possible implementation with reference to second aspect to second aspect, the 6th of second aspect the In kind possible implementation, the first configuration information includes multiple designators, and each designator and one wait in multiple designators Select UE corresponding, designator be the first designator or the second designator, wherein, first designator is expressed as what candidate UE was serviced State on resource block RB of micro- Pico base stations on the grand Macro base stations where it is opening, second designator The state being expressed as on resource block RB of the micro- Pico base stations of candidate UE services on the grand Macro base stations where it is silent shape State.
Any one of the 6th kind of possible implementation with reference to second aspect to second aspect, the 7th of second aspect the In kind possible implementation, ABS configurations subframe includes variable subframe, device provided in an embodiment of the present invention, in addition to：Statistics Unit, CRE UE quantity and non-CRE UE quantity in Pico base stations are concentrated for statistical measurement；Determining unit, it is additionally operable to Determine CRE UE quantity and non-CRE UE ratio of number and ABS sub-frame numbers and all subframes in a cycle quantity it Relation than between；Determining unit, specifically for the quantity according to CRE UE and the non-CRE UE ratio of number and ABS Relation in number of frames and a cycle between the ratio of number of all subframes, the type of the variable subframe is adjusted, to determine The subframe ABS of the almost blank of Macro base stations ratio, the type are ABS subframes or common subframe.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of system architecture schematic diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic flow sheet one of method for optimizing heterogeneous network efficiency provided in an embodiment of the present invention；
Fig. 3 is a kind of configuration information update schematic diagram provided in an embodiment of the present invention；
Fig. 4 is a kind of ABS sub-frame configurations schematic diagram provided in an embodiment of the present invention；
Fig. 5 is a kind of frequency domain adaptive design sketch provided in an embodiment of the present invention；
Fig. 6 is a kind of structural representation of device for optimizing heterogeneous network efficiency provided in an embodiment of the present invention；
Fig. 7 is the structural representation of the device of another optimization heterogeneous network efficiency provided in an embodiment of the present invention；
Fig. 8 is the structural representation of another device for optimizing heterogeneous network efficiency provided in an embodiment of the present invention.
Embodiment
Below with reference to specific embodiments and the drawings, the application is described in further detail：
As shown in figure 1, Long Term Evolution (LTE, Long TermEvolution)-Advanced employs heterogeneous network skill Art, both include macro base station in the network structure, include micro-base station again, CRE user equipmenies (UE, User Equipment) refer to In LTE-Advanced networks, as a result of CRE technologies so that the user partly originally belonged in macro base station coverage connects Enter micro-base station, this certain customers' equipment is CRE user equipmenies.
Specifically, CER technologies refer to, the Reference Signal Received Power from micro-base station for allowing UE to receive (Reference Signal Received Power, RSRP) is plus certain bigoted value, then the macro base station with receiving RSRP is compared, if the former is big, the grand user in part (i.e. grand user equipment) accesses micro-base station, turns into Microcell (Pico Cell CRE user equipmenies).
Therefore, the user equipment in Pico cell is receiving Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel) on data when can be caused Pico by the severe jamming from Macro cell Physical Downlink Control Channel degraded performance in cell.
When Pico cell introduce cell range extension (CRE, Cell Range Expansion) technology, Pico cell In PDCCH performance will more deteriorate.For example, in cell range expansion technique, leaned on when UE moves to from Macro cell During nearly Pico cell, in order to effectively mitigate impact of the data traffic to macrocell, macro base station belonging to Macro cell can be with UE is allowed to be linked into earlier in the micro-base station belonging to Pico cell by deviant in setting control switching.This CRE technologies Equivalent to the coverage for expanding Pico cell, this subregion of expansion is referred to as Pico cell cell extension area Domain, this deviant are properly termed as CRE bias of the micro-base station to the macro base station.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include one or more this feature.In the description of the embodiment of the present invention, unless otherwise indicated, the implication of " multiple " refers to Two or more.
As shown in Fig. 2 Fig. 2 shows a kind of method for optimizing heterogeneous network efficiency provided in an embodiment of the present invention, including：
S101, the device of optimization heterogeneous network efficiency are the grand Macro base stations that interference is more than predetermined threshold value in heterogeneous network Configure the first configuration information, first configuration information be used for indicate candidate resource block on the macro base station (Resource Block, RB state), wherein, the candidate RB includes one or more micro- Pico base stations for candidate user devices UE services in its institute Grand Macro base stations on RB.
Optionally, the embodiment of the present invention pair determines that interference is more than the side of the grand Macro base stations of predetermined threshold value in heterogeneous network Formula can determine, exemplary, the device of optimization heterogeneous network efficiency as needed without limiting in specific implementation process The parameter that each UE is reported, and the parameter reported according to each UE are obtained, it is determined that grand Macro base of the interference more than predetermined threshold value Stand.
Specifically, the embodiment of the present invention to predetermined threshold value without limit, can be set as needed in real process.
S102, the device for optimizing heterogeneous network efficiency are adjusted according to the first configuration information using dynamic node silence DPB technologies Candidate RB state on whole macro base station.
Optionally, the first configuration information in the embodiment of the present invention includes multiple designators, each refers in multiple designators Showing that symbol is corresponding with a candidate UE, designator is the first designator or the second designator, wherein, the first designator is expressed as candidate State on resource block RB of the micro- Pico base stations of UE services on the grand Macro base stations where it is opening, and second refers to Show that the state that symbol is expressed as on resource block RB of the micro- Pico base stations of candidate UE services on the grand Macro base stations where it is quiet Silent state.
The state of a RB in the embodiment of the present invention includes opening and silent status (also known as：Closed mode).
Exemplary, the first designator in the embodiment of the present invention can be " 1 ", and the second designator is " 0 ".Specifically, The quantity for the designator that first configuration information includes can be determined by candidate UE quantity.
S103, optimize the device of heterogeneous network efficiency according to cell in micro- Pico base stations in Macro base station ranges Scope extends CRE UE and non-CRE UE ratios, determines the subframe ABS of the almost blank of Macro base stations ratio.
S104, the device of optimization heterogeneous network efficiency utilize the power control algorithms based on game theory, the transmitting to Macro base stations Power is adjusted.
The embodiment of the present invention provides a kind of method for optimizing heterogeneous network efficiency, by enhancement type district interference coordination technique Combined with the dynamic node silence technology in CoMP, in the case where CRE biasings are larger, by disturbing more than predetermined threshold value The first configuration information is distributed in grand Macro base stations, and adjusts the state of RB in macro base station, because RB state is without being to close It is to open, therefore, can so closes the corresponding RB that the CRE user poor to channel quality disturbs larger macro base station, enter one Step reduces the interference of the CRE user larger to quantity, that is, improves the spectrum efficiency and handling capacity of CRE user, and because grand RB silences on base station reduce energy consumption, meet the concept of green communications.In addition, the present invention is implementing dynamic node silence technology When, CRE UE and non-CRE UE ratios are extended according to cell range in micro- Pico base stations in Macro base station ranges, Dynamic adjustment ABS ratios, so as to adapt to different CRE biasings.Simultaneously by the power control algorithms based on game theory, power domain is proposed The resource allocation optimization scheme of aspect, suitable transmission power is provided for the Macro base stations under each ABS, so as to take into account efficiency And fairness, allow systematic function to reach optimum state.
Optionally, the embodiment of the present invention is before step S101 is performed, as shown in Fig. 2 also including：
S105, the device of optimization heterogeneous network efficiency distribute a preconfigured information for collaboration set, and the collaboration set includes one Individual or multiple candidate UE, the throughput value of the candidate UE meet preset requirement, the preconfigured information be used for indicate be in collaboration set State of the Pico base stations of each candidate UE services on the Macro base stations where respective on corresponding resource block RB.
As a kind of possible implementation, the step S105 in the embodiment of the present invention specifically can be real in the following manner It is existing：
S1051, the device of optimization heterogeneous network efficiency preset one or more candidate UE throughput value according to second Order sorts.
Optionally, the embodiment of the present invention is before step S105, in addition to：
S109, optimize the respective service that each Pico base stations report in the multiple measurement collection of device acquisition of heterogeneous network efficiency Multiple CRE UE throughput value, measurement collection include a Macro base station and all Pico in Macro base station ranges Base station.
Specifically, in real process, each Pico base station receives the channel quality that its CRE UE serviced is reported and referred to Show (Channel Quality Indication, CQI), and the CQI reported according to each CRE UE, it is each to calculate each CRE UE From throughput value throughput, how the CQI reported according to each CRE UE calculates each CRE UE for specific Pico base stations The mode of respective throughput value may be referred to the mode of prior art, and the application will not be repeated here.
That is, in the application step S109, the device of optimization heterogeneous network efficiency can receive each Pico base stations and report Respective service multiple CRE UE throughput value, to obtain handling up for multiple CRE UE that each Pico base stations each service Value；On the other hand, the more of the respective service that the device of heterogeneous network efficiency can also report according to each Pico base stations are optimized Individual CRE UE CQI, according to each CRE UE CQI, calculate each CRE UE throughput value.The application is to optimizing heterogeneous network The device of network efficiency obtains the concrete mode of throughput value without limiting, as long as can ensure to optimize isomery in real process The device of network energy efficiency can get CRE UE throughput value.
S110, optimize the respective service that the device of heterogeneous network efficiency reports according to each Pico base stations in multiple measurement collection Multiple CRE UE throughput value, by it is multiple measurement collection in throughput value meet that one or more CRE UE of preset requirement are true Determine the candidate UE in collaboration set.
Optionally, the second preset order in the embodiment of the present invention can be candidate UE descending suitable of throughput value Sequence, or the ascending order of candidate UE throughput value.
Exemplary, the throughput value of all CRE UE in collaboration set can be arranged according to descending in the embodiment of the present invention Row, and select throughput value and meet that one or more CRE UE of preset requirement determine the candidate UE in collaboration set.It is exemplary , selected throughput value, which meets one or more CRE UE of preset requirement as candidate UE, to be expressed as UE1, UE2, UE3 ..., UEi, wherein, i is integer more than or equal to 1, and i represents CRE UE numbering.
S1052, the device of optimization heterogeneous network efficiency are one or more according to one or more candidate UE ranking results Each candidate UE distributes a numbering in individual candidate UE.
S1053, the device of optimization heterogeneous network efficiency distribute a designator for each candidate UE, and candidate UE is corresponding Designator sorted according to the second preset order, think collaboration set distribute a preconfigured information.
It is exemplary, be in the application one or more candidate UE UE1, UE2, UE3 ... UEi } according to one-to-one corresponding Principle, as each candidate UE distributes a designator, to obtain distributing a preconfigured information for collaboration set, for example, in advance Configuration information M0=" 111111111 ... ".
Wherein, preconfigured information M0 is a binary ordered series of numbers, such as the quantity of a collaboration set user equipment is 9, Then preconfigured information M0=" 111111111 ".Wherein, each binary number represents the state of RB corresponding to a UE, and 1 represents RB State be in opening, 0 state for representing RB is in silent status, the order that binary number arranges in preconfigured information with The order one for the collaboration set user equipment sequence { UE1, UE2, UE3 ... ... } that the above-mentioned order according to throughput value descending obtains One correspondence.
It should be noted that if No. 1 RB and No. 3 RB of the Pico base stations where collaboration set CRE UE1 occupancy, pre-configured First binary number of information represents, No. 1 RB and No. 3 RB of the macro base station where Pico base stations state.It is initial prewired Confidence breath is set to 1, i.e., the RB of macro base station is all in opening.
Certainly, can corresponding RB state be set on shape in macro base station by part candidate UE in preconfigured information State, by part candidate UE, corresponding RB state is set to off closed state in macro base station, can also be by all candidate UE grand Corresponding RB state is set to off closed state in base station, and the application is to this without limiting.
S106, the device for optimizing heterogeneous network efficiency obtain each on Macro base stations successively according to preconfigured information Resource block RB is in the throughput value sum of all candidate UE under different conditions.
Specifically, user equipment to report is currently investigated respectively successively according to the order where each candidate UE in preconfigured information The CQI that self-corresponding RB state is under closing and unlatching two states is to the device for optimizing heterogeneous network efficiency or reports To respective Pico base stations, calculated by respective Pico base stations after throughput value sum in the case of two kinds and to report optimization different The device of structure network energy efficiency, or the CQI reported by the device of optimization heterogeneous network efficiency according to candidate UE calculate two kinds of situations Under throughput value sum.
For example, if the number of user equipment in collaboration set is 9, current preconfigured information M0=' 101111111 ', representative Collaboration set Customs Assigned Number is { UE2, UE 3, UE 1, UE 4, UE 5, UE 7, UE 6, UE 8, UE 9 }, is investigated at present to silence 3rd binary number in pattern, i.e., macro base station RB state (before this, is determined with identical method corresponding to UE 1 Macro base station RB state corresponding to UE2 and UE2 respectively ' is opened ' and ' pass ').According to preconfigured information, UE2 pairs in macro base station The RB answered is in opening, and RB states are closed corresponding to UE3, and remaining RB state is in opening, UE1 Corresponding RB waits to investigate.Then UE1 reports is in opening in macro base station RB corresponding with UE2, and RB corresponding to UE3, which is in, to close Closed state, when remaining RB is in opening, the state that UE1 corresponds to RB is under " unlatching " state and " closing " two states CQI, i.e., all UE report the CQI under M0=' 101111111 ', and the two kinds of configuration informations of M1=' 100111111 'i,0With CQIi,1.Wherein i represents the numbering of user equipment.
Then, the device for optimizing heterogeneous network efficiency calculates all candidate UE handling capacity sum according to configuration information M0, And all candidate UE handling capacity sum is calculated according to configuration information M1.
Specifically, the device of optimization heterogeneous network efficiency can be according to formula：P(Mj)=∑ i=allUEthroughputi (Mj) calculate configuration information M0 and configuration information M1 all candidate UE handling capacity sum.
Wherein, j values be 0 and 1,0 represent all candidate UE throughput value that is calculated under configuration information M0 it With the throughput value sum for all candidate UE that 1 expression is calculated under configuration information M1.
S107, the device of optimization heterogeneous network efficiency are in the handling capacity of all candidate UE under different conditions according to each RB It is worth sum and the preconfigured information, it is right on each self-corresponding Macro base stations updates each candidate UE in preconfigured information The RB states answered.
Specifically, step S107 can be accomplished by the following way：To any one candidate in each candidate UE UE performs following steps, to update in the preconfigured information corresponding RB on each each self-corresponding Macro base stations of candidate UE State：
S1071, the device of optimization heterogeneous network efficiency obtain the Macro bases of a candidate UE in each candidate UE RB corresponding to standing is under opening, throughput value sum corresponding to each candidate UE and candidate UE's RB corresponding to Macro base stations is under silent status, throughput value sum corresponding to each candidate UE；
If S1072, the one candidate UE of device of optimization heterogeneous network efficiency are under silent status, each time Throughput value sum corresponding to UE is selected to be in more than the candidate UE under opening, throughput value corresponding to each candidate UE Sum, it is determined that corresponding RB state is silent status on macro base station corresponding to one candidate UE；
If S1073, the one candidate UE of device of optimization heterogeneous network efficiency are under silent status, each time Throughput value sum corresponding to UE is selected to be in less than the candidate UE under opening, throughput value corresponding to each candidate UE Sum, it is determined that corresponding RB state is opening on macro base station corresponding to one candidate UE.
Specifically, in the above-mentioned throughput value that all candidate UE when RB corresponding to UE1 is in opening are calculated Sum P (M1), and when RB is closed corresponding to UE1 all candidate UE handling capacity sum P (M0), then can be according to P (M1) and P (M0) between relation determine that RB corresponding to UE1 is to be in opening or closed mode on earth.
Because the application is to provide for edge UE throughput value, then if P (M1) it is more than P (M0) then represent UE1 pairs The RB answered state should be set on state, so can just ensure that all candidate UE throughput value is larger, due to pre- The state of RB corresponding to UE1 is in opening in configuration information, then can be arranged to the state of RB corresponding to UE1 not Become.
If P (M1) it is less than P (M0), then it represents that the state of RB corresponding to UE1 should be set to off closed state, due to above-mentioned pre- Pair state corresponding to UE1 is opening in configuration information, then RB state corresponding to the UE1 after updating is closed mode, i.e., Preconfigured information should be updated to ' 100111111 ' for UE1.
S108, the device of optimization heterogeneous network efficiency will update each candidate UE obtained afterwards each self-corresponding Corresponding RB states, are defined as the first configuration information on Macro base stations.
In order that the throughput value sum for obtaining all candidate UE reaches maximum, it is every in preconfigured information is updated in the application , will be previous according to the first preset order on individual each self-corresponding Macro base stations of candidate UE during corresponding RB state The alternative configurations information obtained corresponding to candidate UE on macro base station after corresponding RB states renewal, as renewal the latter candidate UE The configuration information of corresponding RB state on corresponding Macro base stations.
Wherein, the first preset order can be candidate UE numbering, due to candidate UE in preconfigured information corresponding finger Showing symbol is arranged according to the descending of candidate UE throughput value, therefore corresponding order may in preconfigured information by candidate UE Inconsistent with its numbering, therefore, the first preset order can be candidate UE numbering.It is in preconfigured information ' 101111111 ', when user's collection is { UE2, UE 3, UE 1, UE 4, UE 5, UE 7, UE 6, UE 8, UE 9 }, if first The state for measuring RB corresponding to UE1 is closed mode, then the preconfigured information after renewal is ' 100111111 ', therefore, true It is when being in opening or closed mode to determine RB corresponding to UE2, it should using ' 100111111 ' as UE2 measurement CQI when Configuration information.
Investigated, repeated the above steps, directly for example, removing a user according to the configuration information order after renewal and corresponding to RB To the determination for completing RB states corresponding to all candidate UE in configuration information.
For example, if collaboration set number of users is 9, the Customs Assigned Number that silent pattern represents is { 2,3, Isosorbide-5-Nitrae, 5,7,6,8,9 }, then The step of determining silent pattern successively is as shown in Figure 2.In figure, collaboration set user corresponding to the binary number pointed by arrow is corresponding Macro base station RB represent the RB that currently investigates, red binary number represent last time investigate after a upper user correspond to RB switch State change situation.Final silent pattern M_D1=' 100111011 ', then corresponding to silent pattern, we can obtain, and 1,3,6 It is ' pass ' that number user, which corresponds to macro base station RB states, and it is ' opening ' that remaining user, which corresponds to macro base station RB states,.
It is exemplary, Fig. 3 so that collaboration set includes 9 candidate UE as an example UE1, UE2, UE3, UE4, UE5, UE6, UE7, UE8, UE9 }, wherein, exemplified by preconfigured information M0=' 111111111 ' is referring to (a) in Fig. 3, then each candidate is determined successively The state of RB corresponding to UE is as shown in Figure 3.It is grand corresponding to collaboration set user corresponding to the binary number pointed by arrow in Fig. 3 Base station RB represents the RB currently investigated, and a upper user equipment corresponds to RB's after the binary number that runic blackens represents last time investigation State change situation.
When having investigated RB corresponding to UE1 and being in opening and silent status, all candidate UE throughput value sum When, when UE1 is in opening, all candidate UE throughput value sum is maximum, and therefore, the state of RB corresponding to UE1 is to open State is opened, referring to (b) in Fig. 3；When RB corresponding to investigation UE2 is in opening and silent status, all candidate UE's During throughput value sum, when RB corresponding to UE2 is in silent status, all candidate UE throughput value sum is maximum, then UE2 Corresponding RB state is silent status, referring to (c) in Fig. 3；Opening and silent shape are in RB corresponding to investigation UE3 During state, during all candidate UE throughput value sum, when RB corresponding to UE3 is in silent status, all candidate UE handling capacity It is maximum to be worth sum, then the state of RB corresponding to UE3 is silent status, referring to (d) in Fig. 3；The like, refer in Fig. 3 (e)-(j), then final optimization pass heterogeneous network efficiency device determine each candidate UE corresponding to RB state as in Fig. 3 (j) shown in.Namely final is that the first configuration information that Macro base stations configure is 100111011.
The first final configuration information M_D1=' 100111011 ', corresponding first configuration information can obtain, UE2, UE 3, UE5 to correspond to macro base station RB states be ' closed mode ', and it is ' opening ' that remaining user, which corresponds to macro base station RB states,.
Optionally, in order to configure more accurately configuration information for macro base station, can be taken at random more in the embodiment of the present invention Any position is starting point in new configuration information, that is, randomly selects any user equipment and investigate user for starting, is reset silent Pattern is M0=' 111111111 '.Repeat the above steps S105, S106, S107.
After the completion of iteration, the final configuration information M of each iteration is obtainedDnGulped down with all user equipmenies under this configuration information The amount of telling sum P (MDn), wherein n represents iterations.Take handling capacity sum P (MDn) maximum configuration information combines to be silent, i.e., Obtain the on off state that final all collaboration set users correspond to RB
As a kind of possible implementation, the self-adaptive ABS of use is configured, and each sector is given according to current network load Configure appropriate ABS subframe ratios.Fig. 4 is self-adaptive ABS frame structure, as shown in figure 4, with 8 for a period of sub-frame, in order to protect Card system fairness, an ABS subframe and two common subframes are pre-set, drop power hair in macro base stations wherein in ABS subframes Send, and implement silent corresponding macro base station RB, Pico the base station scheduling CRE users of DPB, and macro base stations total power in common subframe Send, while the non-CRE user of Pico base station schedulings.And remaining 5 subframe is then arranged to optional subframe, you can be set to ABS Subframe can also be set to common subframe, specifically set depending on current network specifically loads.
Optionally, the step S103 in the embodiment of the present invention can specifically be accomplished by the following way：
S1031, ABS configuration subframe include variable subframe, and the device statistical measurement of optimization heterogeneous network efficiency concentrates Pico CRE UE quantity and non-CRE UE quantity in base station.
S1032, the device of optimization heterogeneous network efficiency determine CRE UE quantity and non-CRE UE ratio of number and ABS Relation in sub-frame number and a cycle between the ratio of number of all subframes.
S1033, optimize the device of heterogeneous network efficiency according to CRE UE quantity and the ratio of number of the non-CRE UE With the relation between the ratio of number of all subframes in ABS sub-frame numbers and a cycle, the type of the variable subframe is adjusted, To determine the subframe ABS of the almost blank of Macro base stations ratio, the type is ABS subframes or common subframe.
Exemplary, as shown in figure 4, judging NCRE/NNon- CREWhether N is more thanABS/Ntotal.Wherein, NABSRepresent ABS number of sub frames Amount, NtotalIt is the quantity of all subframes in a cycle, the application can be by NtotalIt is arranged to 8.
If NCRE/NNon- CREMore than NABS/Ntotal, then it represents that CRE numbers of users are bigger than normal, then variable subframe are arranged into ABS Frame, and ABS number of subframes adds 1.If NCRE/NNon- CRELess than NABS/Ntota,lVariable subframe is then arranged to common subframe, and commonly Number of subframes adds 1.
Repeat the above steps, circulated until by all subframes.
Optionally, the step S104 in the embodiment of the present invention can be accomplished by the following way：
According to an embodiment of the invention, as shown in figure 5, using the power control algorithms based on game, conjunction is provided for each sector Suitable transmission power.When the transmission power of macro base station is higher, grand edge customer device throughput is larger, but Pico base stations The interference of CRE user is larger, causes that throughput of system is smaller and system energy consumption is larger, therefore system energy efficiency is relatively low；Conversely, work as grand base When the transmission power stood is relatively low, the corresponding lifting of handling up of CRE user, system energy efficiency is higher, but grand user throughput but by Very big influence.Therefore in order to take a compromise between grand user equipment handling capacity and system energy efficiency, the thought of game theory is introduced, The transmission power of each macro base station when optimizing each ABS.
The utility function of each macro base station transmission power is as follows：
In above formula, the former is reward function, relevant with system energy efficiency, and the latter is penalty, is handled up with grand user equipment Measure relevant.
Wherein,Represent the transmission power of i-th of macrocell；γm,iExpression is the signal to noise ratio of i-th of grand user,Represent the power consumption of i-th of macrocell, γp,jIt is the signal to noise ratio of j-th of Pico user,It is j-th of Pico base station The power consumption of place cell, α represents regulatory factor, for adjusting the balance between system energy efficiency and grand edge user throughput.
It is above-mentioned that mainly scheme provided in an embodiment of the present invention is described from the angle of interaction between each network element.Can With understanding, each network element, such as device of optimization heterogeneous network efficiency etc., in order to realize above-mentioned function, it comprises execution The corresponding hardware configuration of each function and/or software module.Those skilled in the art should be readily appreciated that, with reference to herein The unit and algorithm steps of each example of the disclosed embodiments description, the present invention can be with hardware or hardware and computer software Combining form realize.Some functions is performed in a manner of hardware or computer software driving hardware actually, is depended on The application-specific and design constraint of technical scheme.Professional and technical personnel can use not Tongfang to each specific application Method realizes described function, but this realization is it is not considered that beyond the scope of this invention.
The embodiment of the present invention can carry out function mould according to the device of above method example to optimizing heterogeneous network efficiency etc. The division of block, for example, can correspond to each function divides each functional module, can also be by two or more function collection In Cheng Yi processing module.Above-mentioned integrated module can both be realized in the form of hardware, can also use software function The form of module is realized.It should be noted that the division in the embodiment of the present invention to module is schematical, only one kind is patrolled Function division is collected, there can be other dividing mode when actually realizing.
In the case of using integrated unit, as shown in fig. 6, Fig. 6 shows optimization involved in above-described embodiment The device of heterogeneous network efficiency, including：
Dispensing unit 101, for being configured for grand Macro base station configuration first of the interference in heterogeneous network more than predetermined threshold value Information, first configuration information are used for the state for indicating candidate resource block RB on macro base station, wherein, candidate RB includes one or more RB on the individual grand Macro base stations for micro- Pico base stations of candidate user devices UE services where it.
Adjustment unit 102, for according to first configuration information, using described in dynamic node silence DPB technological adjustment Candidate RB state on macro base station.
Determining unit 103, for extending CRE according to cell range in micro- Pico base stations in Macro base station ranges UE and non-CRE UE ratios, determine the subframe ABS of the almost blank of Macro base stations ratio.
Adjustment unit 102, it is additionally operable to utilize the power control algorithms based on game theory, the transmission power of Macro base stations is carried out Adjustment.
The embodiment of the present invention provides a kind of device for optimizing heterogeneous network efficiency, by enhancement type district interference coordination technique Combined with the dynamic node silence technology in CoMP, in the case where CRE biasings are larger, by disturbing more than predetermined threshold value The first configuration information is distributed in grand Macro base stations, and adjusts the state of RB in macro base station, because RB state is without being to close It is to open, therefore, can so closes the corresponding RB that the CRE user poor to channel quality disturbs larger macro base station, enter one Step reduces the interference of the CRE user larger to quantity, that is, improves the spectrum efficiency and handling capacity of CRE user, and because grand RB silences on base station reduce energy consumption, meet the concept of green communications.In addition, the present invention is implementing dynamic node silence technology When, CRE UE and non-CRE UE ratios are extended according to cell range in micro- Pico base stations in Macro base station ranges, Dynamic adjustment ABS ratios, so as to adapt to different CRE biasings.Simultaneously by the power control algorithms based on game theory, power domain is proposed The resource allocation optimization scheme of aspect, suitable transmission power is provided for the Macro base stations under each ABS, so as to take into account efficiency And fairness, allow systematic function to reach optimum state.
Optionally, dispensing unit 101, be additionally operable to for collaboration set distribute a preconfigured information, collaboration set include one or Multiple candidate UE, candidate UE throughput value meet preset requirement, and preconfigured information is used to indicate that in the collaboration set be each State of the Pico base stations of candidate UE services on the Macro base stations where respective on corresponding resource block RB.The present invention is implemented The device that example provides, in addition to：
Acquiring unit 104, for according to preconfigured information, obtaining each resource block on the Macro base stations successively RB is in the throughput value sum of all candidate UE under different conditions.
Updating block 105, for according to each RB be under different conditions all candidate UE throughput value sum and Preconfigured information, update each candidate UE corresponding RB states on each self-corresponding Macro base stations in preconfigured information.
Determining unit 103, each candidate UE for being additionally operable to afterwards obtain renewal are right on each self-corresponding Macro base stations The RB states answered, are defined as the first configuration information.
Optionally, updating block 105, it is specifically used for：Following walk is performed to any one candidate UE in each candidate UE Suddenly, to update the state of corresponding RB on each each self-corresponding Macro base stations of candidate UE in preconfigured information：Obtain each wait RB corresponding to the Macro base stations of a candidate UE in UE is selected to be under opening, throughput value corresponding to each candidate UE RB is under silent status corresponding to sum and a candidate UE Macro base stations, throughput value corresponding to each candidate UE Sum；If a candidate UE is under silent status, throughput value sum corresponding to each candidate UE is in more than the candidate UE Under opening, throughput value sum corresponding to each candidate UE, it is determined that corresponding on macro base station corresponding to a candidate UE RB state is silent status；If a candidate UE is under silent status, throughput value sum corresponding to each candidate UE is small It is in the candidate UE under opening, throughput value sum corresponding to each candidate UE, it is determined that corresponding to a candidate UE Corresponding RB state is opening on macro base station.
Optionally, each each self-corresponding Macro base stations of candidate UE in the preconfigured information is updated of updating block 105 During RB state corresponding to upper, specifically for according to the first preset order by corresponding to previous candidate UE on macro base station The alternative configurations information obtained after the renewal of corresponding RB states, as corresponding to renewal the latter candidate UE on Macro base stations it is right The configuration information of the RB answered state.
Optionally, acquiring unit 104, it is additionally operable to obtain the respective service that each Pico base stations report in multiple measurement collection Multiple CRE UE throughput value, measurement collection include a Macro base station and all Pico bases in Macro base station ranges Stand.
The determining unit 103, it is additionally operable to according to the respective service that each Pico base stations report in the multiple measurement collection Multiple CRE UE throughput value, throughput value in the multiple measurement collection is met into one or more CRE of preset requirement UE determines the candidate UE in the collaboration set.
Optionally, dispensing unit 101, specifically for one or more candidate UE throughput value is default suitable according to second Sequence sorts；And it is each to be waited in one or more of candidate UE for the ranking results according to one or more candidate UE UE is selected to distribute a numbering；And for distributing a designator for each candidate UE, and by corresponding to the candidate UE Designator sorts according to second preset order, thinks that the collaboration set distributes a preconfigured information.
Optionally, the first configuration information includes multiple designators, and each designator is waited with one in the multiple designator Select UE corresponding, the designator be the first designator or the second designator, wherein, first designator is expressed as candidate UE and taken State on resource block RB of the micro- Pico base stations of business on the grand Macro base stations where it is opening, and described second refers to Show that the state that symbol is expressed as on resource block RB of the micro- Pico base stations of candidate UE services on the grand Macro base stations where it is quiet Silent state.
Optionally, ABS, which configures subframe, includes variable subframe, and the device that the application provides also includes：
Statistic unit 106, CRE UE quantity and non-CRE UE quantity in Pico base stations are concentrated for statistical measurement；
The determining unit 103, be additionally operable to determine the quantity of the CRE UE and the ratio of number of the non-CRE UE with Relation in ABS sub-frame numbers and a cycle between the ratio of number of all subframes；
The determining unit 103, specifically for the quantity according to the CRE UE and the ratio of number of the non-CRE UE With the relation between the ratio of number of all subframes in ABS sub-frame numbers and a cycle, the type of the variable subframe is adjusted, To determine the subframe ABS of the almost blank of Macro base stations ratio, the type is ABS subframes or common subframe.
On the basis of use is hard-wired, dispensing unit 101, adjustment unit 103 in the application, determining unit 103, Acquiring unit 104 and updating block 105, statistic unit 106 can be the place for the device for being integrated in optimization heterogeneous network efficiency Manage in device.
In the case of using integrated unit, Fig. 7 shows optimization heterogeneous network energy involved in above-described embodiment A kind of possible logical construction schematic diagram of the device of effect.
The device of optimization heterogeneous network efficiency includes：Processing module 112 and communication module 113.Processing module 112 be used for pair The device action of optimization heterogeneous network efficiency is controlled management, for example, processing module 112 is used to support optimization heterogeneous network energy S101, S102, S103 (S1031, S1032 and S1033), S104, S105 that the device of effect is performed in above-described embodiment are (specific Can be S1051, S1052 and S1053), S110, S106, S107 (specifically can be S1071, S1072 and S1073)、S108；Communication module 113 is used to support the device of optimization heterogeneous network efficiency to perform the step in above-described embodiment S109, and/or other processes for techniques described herein.Communication module 113 is mainly used in the communication with Pico or UE The device of optimization heterogeneous network efficiency can also include memory module 111, the device for storage optimization heterogeneous network efficiency Program code and data.
Wherein, processing module 112 can be processor or controller, such as can be central processor unit, general place Manage device, digital signal processor, application specific integrated circuit, field programmable gate array or other PLDs, crystal Pipe logical device, hardware component or its any combination.It can realize or perform with reference to described by the disclosure of invention Various exemplary logic blocks, module and circuit.Processor can also be the combination for realizing computing function, such as include one Or multi-microprocessor combination, the combination of digital signal processor and microprocessor etc..Communication module 113 can be transmitting-receiving Device, transmission circuit or communication interface etc..Memory module 111 can be memory.
When processing module 112 is processor 120, and communication module 113 is communication interface 130 or transceiver, memory module 111 when being memory 140, and the device of the optimization heterogeneous network efficiency involved by the embodiment of the present invention can be setting shown in Fig. 8 It is standby.
Wherein, communication interface 130, processor 120 and memory 140 are connected with each other by bus 110；Bus 110 can To be pci bus or eisa bus etc..Bus can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, Only represented in Fig. 8 with a thick line, it is not intended that an only bus or a type of bus.Wherein, memory 140 is used In the program code and data of the device of storage optimization heterogeneous network efficiency.Communication interface 130 is used to support optimization heterogeneous network The device of efficiency communicates with other equipment, and processor 120 is used to support the device of optimization heterogeneous network efficiency to perform memory 140 The program code sum of middle storage realizes a kind of information configuring methods provided in an embodiment of the present invention according to this.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.

Claims (16)

  1. A kind of 1. method for optimizing heterogeneous network efficiency, it is characterised in that including：
    The first configuration information is configured for grand Macro base station of the interference in heterogeneous network more than predetermined threshold value, described first matches somebody with somebody confidence The state for indicating candidate resource block RB on the Macro base stations is ceased, wherein, the candidate RB includes one or more for time Select micro- Pico base stations of user equipment (UE) service corresponding RB on the Macro base stations where it；
    According to first configuration information, using described in dynamic node silence DPB technological adjustment on macro base station candidate RB state；
    According to cell range extension CRE UE and non-CRE UE ratios in micro- Pico base stations in the Macro base station ranges Example, determine the subframe ABS of the almost blank of Macro base stations ratio；
    Using the power control algorithms based on game theory, the transmission power of the Macro base stations is adjusted.
  2. 2. according to the method for claim 1, it is characterised in that described is that interference is grand more than predetermined threshold value in heterogeneous network Before Macro base stations configure the first configuration information, methods described also includes：
    A preconfigured information is distributed for collaboration set, the collaboration set includes one or more candidate UE, and the candidate UE's gulps down Tell value and meet preset requirement, the preconfigured information is used to indicate in the collaboration set for the Pico bases of each candidate UE services The state stood on the Macro base stations where respective on corresponding resource block RB；
    According to the preconfigured information, each resource block RB obtained successively on the Macro base stations is under different conditions All candidate UE throughput value sum；
    All candidate UE throughput value sum and the preconfigured information under different conditions are according to each RB, more Each candidate UE corresponding RB states on each self-corresponding Macro base stations in the new preconfigured information；
    The each candidate UE obtained afterwards corresponding RB states on each self-corresponding Macro base stations will be updated, are defined as described First configuration information.
  3. 3. according to the method for claim 2, it is characterised in that described be according to each RB under different conditions is owned Candidate UE throughput value sum and the preconfigured information, each candidate UE is updated in the preconfigured information each right Corresponding RB states on the Macro base stations answered, including：
    Following steps are performed to any one candidate UE in each candidate UE, it is each in the preconfigured information to update Corresponding RB state on each self-corresponding Macro base stations of candidate UE：
    RB corresponding to obtaining the Macro base stations of a candidate UE in each candidate UE is under opening, described every RB is under silent status corresponding to throughput value sum and a candidate UE Macro base stations corresponding to individual candidate UE, institute State throughput value sum corresponding to each candidate UE；
    If one candidate UE is under silent status, throughput value sum corresponding to each candidate UE is more than the candidate UE is under opening, throughput value sum corresponding to each candidate UE, it is determined that corresponding to one candidate UE Corresponding RB state is silent status on macro base station；
    If one candidate UE is under silent status, throughput value sum corresponding to each candidate UE is less than the candidate UE is under opening, throughput value sum corresponding to each candidate UE, it is determined that corresponding to one candidate UE Corresponding RB state is opening on macro base station.
  4. 4. according to the method for claim 3, it is characterised in that each candidate UE is each in the preconfigured information is updated On corresponding Macro base stations during corresponding RB state, according to the first preset order by corresponding to previous candidate UE The alternative configurations information obtained on macro base station after corresponding RB states renewal, as Macro corresponding to renewal the latter candidate UE The configuration information of corresponding RB state on base station.
  5. 5. according to the method described in claim any one of 2-4, it is characterised in that described to distribute a prewired confidence for collaboration set Before breath, methods described also includes：
    Obtain the throughput value of the multiple CRE UE for the respective service that each Pico base stations report in multiple measurement collection, the measurement Collection includes a Macro base station and all Pico base stations in the Macro base station ranges；
    Multiple CRE UE of the respective service reported according to each Pico base stations in the multiple measurement collection throughput value, by institute State throughput value in multiple measurement collection and meet that one or more CRE UE of preset requirement determine the candidate UE in the collaboration set.
  6. 6. according to the method described in claim any one of 2-5, it is characterised in that described to distribute a prewired confidence for collaboration set Breath, including：
    One or more of candidate UE throughput value is sorted according to the second preset order；
    It is each candidate UE distribution in one or more of candidate UE according to one or more of candidate UE ranking results One numbering；
    A designator is distributed for each candidate UE, and designator corresponding to the candidate UE is preset according to described second Order sorts, and thinks that the collaboration set distributes a preconfigured information.
  7. 7. according to the method described in claim any one of 1-6, it is characterised in that first configuration information includes multiple instructions Accord with, each designator is corresponding with a candidate UE in the multiple designator, and the designator is that the first designator or second refer to Show symbol, wherein, first designator is expressed as micro- Pico base stations of candidate UE services on the grand Macro base stations where it State on resource block RB is opening, and second designator is expressed as micro- Pico base stations of candidate UE services where it Grand Macro base stations on resource block RB on state be silent status.
  8. 8. according to the method described in claim any one of 1-7, it is characterised in that the ABS configurations subframe includes variable subframe, Cell range extension CRE user equipment (UE)s and non-CRE in micro- Pico base stations according in the Macro base station ranges User's ratio, the subframe ABS of the almost blank of Macro base stations ratio is determined, including：
    Statistical measurement concentrates CRE UE quantity and non-CRE UE quantity in Pico base stations；
    Determine the quantity of the CRE UE with the ratio of number of the non-CRE UE with owning in ABS sub-frame numbers and a cycle Relation between the ratio of number of subframe；
    According to the quantity of the CRE UE and the non-CRE UE ratio of number with ABS sub-frame numbers with owning in a cycle Relation between the ratio of number of subframe, the type of the variable subframe is adjusted, to determine the almost blank of the Macro base stations Subframe ABS ratio, the type is ABS subframes or common subframe.
  9. A kind of 9. device for optimizing heterogeneous network efficiency, it is characterised in that including：
    Dispensing unit, for configuring the first configuration information, institute for grand Macro base station of the interference in heterogeneous network more than predetermined threshold value The state that the first configuration information is used to indicate candidate resource block RB on the Macro base stations is stated, wherein, the candidate RB includes one Corresponding RB on individual or multiple grand Macro base stations for micro- Pico base stations of candidate user devices UE services where it；
    Adjustment unit, for according to first configuration information, using described in dynamic node silence DPB technological adjustment on macro base station Candidate RB state；
    Determining unit, for extending CRE UE according to cell range in micro- Pico base stations in the Macro base station ranges With non-CRE UE ratios, the subframe ABS of the almost blank of Macro base stations ratio is determined；
    The adjustment unit, it is additionally operable to utilize the power control algorithms based on game theory, the transmission power of the Macro base stations is carried out Adjustment.
  10. 10. device according to claim 9, it is characterised in that the dispensing unit, be additionally operable to distribute one for collaboration set Preconfigured information, the collaboration set include one or more candidate UE, and the throughput value of the candidate UE meets preset requirement, institute Preconfigured information is stated to be used to indicate the interior Macro bases for the Pico base stations of each candidate UE services where respective of the collaboration set The state stood on upper corresponding resource block RB；
    Described device, in addition to：
    Acquiring unit, for according to the preconfigured information, obtaining successively at each resource block RB on the Macro base stations All candidate UE throughput value sum under different conditions；
    Updating block, for being under different conditions all candidate UE throughput value sum and described according to each RB Preconfigured information, update each candidate UE corresponding RB states on each self-corresponding Macro base stations in the preconfigured information；
    The determining unit, each candidate UE obtained afterwards will be updated by being additionally operable to corresponds on each self-corresponding Macro base stations RB states, be defined as first configuration information.
  11. 11. device according to claim 10, it is characterised in that the updating block, be specifically used for：
    Following steps are performed to any one candidate UE in each candidate UE, it is each in the preconfigured information to update Corresponding RB state on each self-corresponding Macro base stations of candidate UE：
    RB corresponding to obtaining the Macro base stations of a candidate UE in each candidate UE is under opening, described every RB is under silent status corresponding to throughput value sum and a candidate UE Macro base stations corresponding to individual candidate UE, institute State throughput value sum corresponding to each candidate UE；
    If one candidate UE is under silent status, throughput value sum corresponding to each candidate UE is more than the candidate UE is under opening, throughput value sum corresponding to each candidate UE, it is determined that corresponding to one candidate UE Corresponding RB state is silent status on macro base station；
    If one candidate UE is under silent status, throughput value sum corresponding to each candidate UE is less than the candidate UE is under opening, throughput value sum corresponding to each candidate UE, it is determined that corresponding to one candidate UE Corresponding RB state is opening on macro base station.
  12. 12. device according to claim 11, it is characterised in that the updating block is in the preconfigured information is updated On each each self-corresponding Macro base stations of candidate UE during corresponding RB state, specifically for default suitable according to first The alternative configurations information that sequence will obtain corresponding to previous candidate UE on macro base station after corresponding RB states renewal, after renewal Corresponding to one candidate UE on Macro base stations corresponding RB state configuration information.
  13. 13. according to the device described in claim any one of 10-12, it is characterised in that acquiring unit, be additionally operable to obtain multiple surveys The multiple CRE UE for the respective service that each Pico base stations report throughput value in quantity set, the measurement collection include one Macro base stations and all Pico base stations in the Macro base station ranges；
    The determining unit, it is additionally operable to according to the multiple of the respective service that each Pico base stations report in the multiple measurement collection CRE UE throughput value, throughput value in the multiple measurement collection is met that one or more CRE UE of preset requirement are determined Candidate UE in the collaboration set.
  14. 14. according to the device described in claim any one of 10-13, it is characterised in that the dispensing unit, specifically for by institute The throughput value for stating one or more candidate UE sorts according to the second preset order；And for according to one or more of times UE ranking results are selected, are that each candidate UE distributes a numbering in one or more of candidate UE；And for be described Each candidate UE distributes a designator, and designator corresponding to the candidate UE is sorted according to second preset order, Think that the collaboration set distributes a preconfigured information.
  15. 15. according to the device described in claim any one of 9-14, it is characterised in that first configuration information includes multiple fingers Show symbol, each designator is corresponding with a candidate UE in the multiple designator, and the designator is the first designator or second Designator, wherein, first designator is expressed as micro- Pico base stations of candidate UE services on the grand Macro base stations where it Resource block RB on state be opening, second designator is expressed as micro- Pico base stations of candidate UE services in its institute Grand Macro base stations on resource block RB on state be silent status.
  16. 16. according to the device described in claim any one of 9-15, it is characterised in that the ABS configurations subframe includes can varitron Frame, described device, in addition to：
    Statistic unit, CRE UE quantity and non-CRE UE quantity in Pico base stations are concentrated for statistical measurement；
    The determining unit, it is additionally operable to determine the quantity of the CRE UE and the ratio of number of the non-CRE UE and ABS subframes Relation in quantity and a cycle between the ratio of number of all subframes；
    The determining unit, specifically for the quantity according to the CRE UE and the non-CRE UE ratio of number and ABS Relation in number of frames and a cycle between the ratio of number of all subframes, the type of the variable subframe is adjusted, to determine The subframe ABS of the almost blank of Macro base stations ratio, the type are ABS subframes or common subframe.
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