CN103516475B - Method for cell interference coordination and heterogeneous network in heterogeneous network - Google Patents
Method for cell interference coordination and heterogeneous network in heterogeneous network Download PDFInfo
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- CN103516475B CN103516475B CN201210219354.6A CN201210219354A CN103516475B CN 103516475 B CN103516475 B CN 103516475B CN 201210219354 A CN201210219354 A CN 201210219354A CN 103516475 B CN103516475 B CN 103516475B
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Abstract
The present invention discloses method for cell interference coordination and heterogeneous network in a kind of heterogeneous network.This method includes：First base station does not transmit control information at least one subframe of at least one of component carrier frequency domain carriers, obtains configuration information of the first base station on polymerizeing carrier wave；According to the configuration information, control information is not transmitted in the second base station in more than one other subframe in component carrier beyond at least one subframe, and control information is transmitted at least one subframe.Adjacent base station can not transmitted to control channel of the subframe position as this base station transmission signal of control information by each base station of this method, do not disturbed with the control channel between causing by adjacent base station, so as to, realize the coordinating district interference in the heterogeneous network for supporting carrier aggregation, the spectrum efficiency of cell edge is improved, and then improves the quality of service of cell edge in the heterogeneous network for supporting carrier aggregation.
Description
Technical field
The present invention relates to wireless communication technology field, method for cell interference coordination in more particularly to a kind of heterogeneous network and
Heterogeneous network.
Background technology
Long Term Evolution (Long Term Evolution, LTE) technology is the new generation of wireless communication system that 3GPP is released.
The deployment at LTE network initial stage, the identical networking mode of the big bandwidth of generally use.In identical networking mode, each neighbor cell
Identical carrier wave is all used, therefore, the user of neighbor cell, is especially in the user of cell edge, may be with for the moment
Between receive the identical frequency signals of two or more cells.When the homogenous frequency signal from each cell is stronger, the communication of the user
Will be heavily disturbed.Problem is interfered for solution identical networking mode medium and small interval, it is proposed that Inter-Cell Interference Coordination
(Inter-cell Interference Coordination, ICIC).ICIC controls minizone by managing Radio Resource
Interference, so as to improve the service quality of Cell Edge User.To solve interfering for identical networking mode medium and small interval,
3GPP proposes LTE R8 ICIC.
Shown in Figure 1, Fig. 1 shows a kind of schematic diagram of inter-cell interference coordination method of the prior art.LTE R8
ICIC by according to quality of wireless channel or with the distance of evolved base station by it is small divide into core (Cell Center) and
Marginal portion (Cell Edge), the user positioned at center of housing estate part and marginal portion is treated with a certain discrimination, specifically, adopted
With different Radio Resource coordination modes, different frequency duplex factor as one is used.Pass through LTE R8 ICIC, two neighbor cells
The user of marginal portion will use different frequency resources, such as S1, S2, S3 frequency in Fig. 1.Not only effectively solves cell side
The interference problem of edge point, it is ensured that the spectrum efficiency of center of housing estate part.
With the continuous expansion of LTE network coverage, and the continuous development of LTE technologies, the covering of traditional macro base station
Mode can increase with the increasing number and bandwidth demand of user on capacity and be difficult to meet needs, especially some focuses
Area, simple grand covering can not meet customer flow demand, and blind area occurs in isomorphism coverage mode, influences making for user
With.Therefore, LTE R10 introduce heterogeneous network (Heterogeneous Network, Het-Net) so that the form of networking is more
Add flexibly.This networking model be primarily referred to as in grand coverage cell place low power nodes (Lower Power Node,
), such as long-distance radio frequency unit (Remote Radio Unit/Remote Radio Head, RRU/RRH), femto base station LPN
(Pico), Home eNodeB (Femto), via node (Relay Node) etc..LPN introducing means more inter-frequency interference cells
Intervention, be especially in the presence of more overlay areas overlapping with grand covering.On the other hand, situation of the user in relatively low receiving power
Lower access cell, also implies that signal power is relatively low, and descending interference further enhances so that signal to noise ratio SINR is also lower,
And not only Traffic Channel receives interference, control channel also can more be influenceed.It is shown in Figure 2, shown in Fig. 2
The schematic diagram of area interference in heterogeneous network between different base station.
However, the foregoing method for cell interference coordination for identical networking mode can not solve the area interference of heterogeneous network
Problem.On the other hand, LTE R10 propose enhanced ICIC (enhanced ICIC, eICIC), to solve the area interference of heterogeneous network
Problem.
LTE system carrier wave of the carrier aggregation technology by the carrier aggregation of continuous or discrete LTE system for bigger bandwidth, from
And realize maximum system bandwidth.In LTE system, increasing scheme has used carrier aggregation technology.
It is shown in Figure 3, it is increasingly complex in the heterogeneous network of support carrier aggregation, the situation of area interference.With grand in Fig. 3
Base station and Pico base stations mixed networking, in case of two kinds of carrier aggregations.Carrier frequency is supported in macro base station and Pico base stations
The carrier aggregation for the carrier wave f2 that the carrier wave f1 and frequency that rate is 2.1GHz are 2.6GHz.The coverage of macro base station is larger, grand base
Stand transmitting carrier wave f1 and f2 transmission power it is larger.Pico base stations are in macro base station coverage, and transmission power is smaller.When
When Pico base stations are nearer from macro base station, the downstream signal of macro base station will receive to the user of Pico cell edges comes from Pico base stations
Carrier wave f1 and f2 down channel produce larger interference, reduce Pico cell edge spectrum efficiencies, have impact on carrier aggregation
Heterogeneous network in cell edge quality of service.
However, LTE R10 eICIC are only for the area interference in the heterogeneous network of non-carrier polymerization, there is presently no
Support the coordinating district interference scheme in the heterogeneous network of carrier aggregation.
The content of the invention
A kind of the inventors found that above-mentioned the problems of the prior art, it is proposed that heterogeneous network for supporting carrier aggregation
The technical scheme of coordinating district interference in network, to provide the coordinating district interference in the heterogeneous network for supporting carrier aggregation.
According to an aspect of the present invention, the invention provides the method for cell interference coordination in a kind of heterogeneous network, institute
Stating heterogeneous network includes adjacent first base station and the second base station, and the heterogeneous network supports carrier aggregation, the carrier aggregation
Middle polymerize component carrier includes two or more frequency domain carriers, and methods described includes：
First base station does not transmit control information at least one subframe of at least one of component carrier frequency domain carriers, obtains
Configuration information to first base station on polymerizeing carrier wave；
According to configuration information of the first base station on polymerizeing carrier wave, the second base station at least one son described in component carrier
Control information is not transmitted in more than one other subframe beyond frame, control information is transmitted at least one subframe.
According to another aspect of the present invention, present invention also offers a kind of heterogeneous network, the heterogeneous network to include phase
Adjacent first base station and the second base station, the heterogeneous network support carrier aggregation, and the composition being polymerize in the carrier aggregation carries
Ripple includes two or more frequency domain carriers, at least one subframe of the first base station at least one of component carrier frequency domain carriers
On do not transmit control information, obtain first base station on polymerize carrier wave configuration information；
Second base station is according to configuration information of the first base station on polymerizeing carrier wave, at least one described in component carrier
Control information is not transmitted in more than one other subframe beyond individual subframe, the transmission control letter at least one subframe
Breath.
In scheme provided by the present invention, first base station is at least one at least one of component carrier frequency domain carriers
Control information is not transmitted in subframe, obtains configuration information of the first base station on polymerizeing carrier wave.According to first base station on polymerization
The configuration information of carrier wave, in the frequency domain carriers, the second base station can not transmit first base station the subframe position of control information
As the control channel of the second base station, to cause the control channel of the second base station not disturbed by first base station.Similarly, the second base
Control information is not transmitted in other subframes in the component carrier beyond the subframe of standing, to avoid the control to first base station from believing
Road produces interference.Each base station can not transmit adjacent base station control of the subframe position as this base station transmission signal of control information
Channel processed, do not disturbed with the control channel between causing by adjacent base station, so as to realize the isomery for supporting carrier aggregation
Coordinating district interference in network, the spectrum efficiency of cell edge is effectively improved, so as to improve the isomery for supporting carrier aggregation
The quality of service of cell edge in network.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
The accompanying drawing of a part for constitution instruction describes embodiments of the invention, and is used to solve together with the description
Release the principle of the present invention.
Referring to the drawings, according to following detailed description, the present invention can be more clearly understood, wherein：
Fig. 1 shows a kind of schematic diagram of inter-cell interference coordination method of the prior art；
Fig. 2 shows the schematic diagram of the area interference between different base station in heterogeneous network；
Fig. 3 shows the schematic diagram of area interference in the heterogeneous network of carrier aggregation of the prior art a kind of；
Fig. 4 shows a kind of flow signal of embodiment of method for cell interference coordination in heterogeneous network provided by the present invention
Figure；
Fig. 5 shows the flow signal of method for cell interference coordination another kind embodiment in heterogeneous network provided by the present invention
Figure；
Fig. 6 shows that the polymerization in heterogeneous network provided by the present invention in method for cell interference coordination another kind embodiment carries
The schematic diagram of ripple configuration；
Fig. 7 shows the flow signal of another embodiment of method for cell interference coordination in heterogeneous network provided by the present invention
Figure；
Fig. 8 shows the polymerization carrier wave of disturbance coordination method another embodiment in heterogeneous network little Zhong areas provided by the present invention
The schematic diagram of configuration；
Fig. 9 shows the carrier-grade of heterogeneous network little Zhong areas disturbance coordination method another embodiment provided by the present invention
Schematic diagram；And
Figure 10 shows the composition schematic diagram of heterogeneous network embodiment provided by the present invention.
Embodiment
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that：Unless have in addition
Body illustrates that the part and the positioned opposite of step otherwise illustrated in these embodiments does not limit the scope of the invention.
Simultaneously, it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawing is not according to reality
Proportionate relationship draw.
The description only actually at least one exemplary embodiment is illustrative to be never used as to the present invention below
And its application or any restrictions that use.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
Shown in Figure 4, this is illustrated, and method for cell interference coordination in heterogeneous network provided by the present invention is a kind of to be implemented
The schematic flow sheet of example.
Heterogeneous network in the embodiment includes adjacent first base station and the second base station.Heterogeneous network supports carrier wave to gather
Close, the component carrier being polymerize in carrier aggregation includes two or more frequency domain carriers.
According to each component carrier frequency domain relative position, carrier aggregation can be divided into continuous carrier polymerization
(Continuous Carrier Aggregation) and discontinuous carrier polymerize (Discontinuous Carrier
Aggregation)。
Continuous carrier polymerization is also known as continuous carrier polymerization (Intra-band Adjacent Carrier in frequency band
Aggregation), refer to that polymerize component carrier is in same section of frequency band and adjacent to each other on frequency domain.
Discontinuous carrier polymerization refers to that polymerize component carrier is mutually non-conterminous on frequency domain.According to component carrier whether
In same section of frequency band, discontinuous carrier polymerization can be further subdivided into non-between discontinuous carrier polymerization and frequency band in frequency band
Continuous carrier polymerize.Although discontinuous carrier polymerization refers to that polymerize component carrier is mutually non-conterminous on frequency domain in frequency band,
But in same section of frequency band.Discontinuous carrier polymerization refers to that polymerize component carrier is distributed in different frequencies between frequency band
Take, such as 2.1GHz and 2.6GHz.
In the following examples, the mode of carrier aggregation can be continuous carrier polymerization or be that discontinuous carrier gathers
Any one in conjunction.
Method for cell interference coordination in the present embodiment in heterogeneous network includes：
In step 401, first base station does not pass at least one subframe of at least one of component carrier frequency domain carriers
Defeated control information, obtain configuration information of the first base station on polymerizeing carrier wave.
In step 402, according to first base station on polymerize carrier wave configuration information, the second base station in component carrier extremely
Control information is not transmitted in more than one other subframe beyond a few subframe, first base station does not transmit control in component carrier
Control information is transmitted at least one subframe of information processed.
Second base station carries according to configuration information of the first base station on polymerizeing carrier wave for a kind of frequency domain in component carrier
For ripple, the subframe that first base station does not transmit control information will not produce to the control channel of the subframe on the position of the second base station
Interference, therefore, the second base station can send control information in the control channel of the subframe position.
Similarly, to cause the second base station not produce interference to the control channel of first base station, the second base station carries in composition
In ripple, for not transmitting control information in more than one other subframe beyond at least one subframe of first base station, so as to not right
The control channel of the subframe of first base station correspondence position produces interference.
For the same frequency carrier in multicarrier, each base station can not transmit adjacent base station the subframe of control information
Position sends the control channel of signal as this base station, is not disturbed with the control channel between causing by adjacent base station, from
And realize the coordinating district interference in the heterogeneous network for supporting carrier aggregation.
Control information is not transmitted in the subframe of each frequency domain carriers of the base station in component carrier, can specifically there is different realities
Existing mode.Below in an example, exemplified by two kinds of embodiments, it will be understood by those skilled in the art that can also be by
Other modes are realized.
Shown in Figure 5, Fig. 5 shows another implementation of method for cell interference coordination in heterogeneous network provided by the present invention
The schematic flow sheet of example.With reference to shown in Fig. 6, Fig. 6 shows that method for cell interference coordination is another in heterogeneous network provided by the present invention
A kind of schematic diagram of polymerization carrier wave configuration in embodiment.
In step 501, first base station controls the physical down at least one subframe of at least one frequency domain carriers
Channel (Physical Downlink Control Channel, PDCCH) is configured to idle channel, carries at least one frequency domain
Control channel PDCCH at least one subframe of ripple does not transmit control information, obtains first base station matching somebody with somebody on polymerization carrier wave
Confidence ceases.
In step 502, according to first base station on polymerize carrier wave configuration information, the second base station by it is other more than one
PDCCH in subframe is configured to idle channel, the PDCCH in more than one other subframe is not transmitted control information.
In order to reduce the interference to adjacent cell base station carrier control channel, first base station by least one frequency domain carriers extremely
PDCCH in a few subframe is configured to idle channel.As shown in Figure 6, carrier wave f1 and f2 is respectively first base station and second
The component carrier of base station.The preceding 1-3 symbol of each subframe is control channel PDCCH, behind symbol be data channel PDSCH.
The control channel PDCCH of the carrier wave f2 of first base station subframe is configured to idle channel, does not send control information, so that will not be right
The control channel PDCCH of the carrier wave f2 of second base station subframe produces interference.Similarly, the carrier wave f1 of the second base station subframe
Control channel PDCCH is configured to idle channel, does not send control information, therefore, will not be to the carrier wave f1 of first base station subframe
Control channel PDCCH produce interference.It is thus possible to it is effectively reduced between first base station and the second base station, to adjacent base station
Control channel PDCCH interference.
For a base station, when setting the control channel PDCCH of one of them excessively multiple carrier wave subframe to be idle channel,
The data channel of the carrier wave subframe, i.e. Physical Downlink Shared Channel (Physical Downlink Shared Channel,
PDSCH), cross scheduling can be carried out by the control channel PDCCH in the identical subframe of other carrier waves beyond the carrier wave of the base station
(Cross Schedule).Multiple carrier waves can be configured to by cross scheduling by cross-carrier scheduling, on each component carrier not
It is to possess independent control channel PDCCH, but in control channel PDCCH Downlink Control Information (Downlink Control
Information, DCI) carrier wave instructions field (Carrier indicator Field, CIF) is increased in subband newly to indicate control letter
Corresponding relation between road PDCCH and the component carrier of shared control information.
Specifically, first base station matches somebody with somebody the control channel PDCCH at least one subframe of at least one frequency domain carriers
It is set to idle channel, the data channel PDSCH at least one subframe of at least one frequency domain carriers is carried by least one frequency domain
Control channel PDCCH cross schedulings at least one subframe of other carrier waves beyond ripple；Second base station by other one with
PDCCH in upper subframe is configured to idle channel, the data channel PDSCH in more than one other subframe by it is other more than one
Control channel PDCCH cross schedulings in other carrier waves beyond frequency domain carriers where subframe in more than one other subframe.
For example, shown in figure 6, specifically, carrier wave f2 control channel is arranged to idle channel by first base station, by carrying
Ripple f1 control channel PDCCH cross scheduling carrier waves f2 data channel PDSCH.Therefore, first base station notice user terminal UE
Monitoring carrier wave f1 control channel PDCCH.After UE is monitored and receives carrier wave f1 control channel PDCCH, carrier wave f1 controls
The frequency that instruction UE to carrier wave f1 and carrier wave f2 is contained in channel PDCCH processed receives the instruction of data message.UE passes through carrier wave
F1 control channel PDCCH configured information, corresponding frequency is gone to receive data message, i.e., according to control channel in carrier wave f1
PDCCH configured information receives carrier wave f1 and carrier wave f2 data channel PDSCH.So as to realize first base station carrier wave f1 control
Channel PDCCH channel interference-free this base station carrier of cross scheduling f2 data channel PDSCH, while dispatch this base station carrier f1
Data channel PDSCH.
Similarly, shown in figure 6, for the second base station, carrier wave f2 control channel PDCCH channels can be without dry
Ground this base station carrier of cross scheduling f1 data channel PDSCH is disturbed, while dispatches this base station carrier f2 data channel PDSCH.
Shown in Figure 7, Fig. 7 shows another implementation of method for cell interference coordination in heterogeneous network provided by the present invention
The schematic flow sheet of example.With reference to shown in Fig. 8, Fig. 8 shows heterogeneous network little Zhong areas disturbance coordination method provided by the present invention again
A kind of schematic diagram of the polymerization carrier wave configuration of embodiment.
In step 701, first base station is by the control channel PDCCH at least one subframe of at least one frequency domain carriers
Idle channel is configured to data channel PDSCH, makes the control channel at least one subframe of at least one frequency domain carriers
PDCCH does not transmit control information, the data channel PDSCH at least one subframe of at least one frequency domain carriers is not transmitted number
It is believed that breath, obtains configuration information of the first base station on polymerizeing carrier wave.
In a step 702, according to first base station on polymerize carrier wave configuration information, the second base station by it is other more than one
Control channel PDCCH and data channel PDSCH in subframe is configured to idle channel, makes the control in more than one other subframe
Channel PDCCH does not transmit control information, makes data channel PDSCH in more than one other subframe not transmitting data information.
Similarly, in order to reduce the interference to adjacent cell base station carrier control channel, first base station is by least one frequency domain
Control channel PDCCH and data channel PDSCH at least one subframe of carrier wave is each configured to idle channel.Referring in Fig. 8
Shown, carrier wave f1 and f2 are respectively the component carrier of first base station and the second base station.The preceding 1-3 symbol of each subframe is control
Channel PDCCH, behind symbol be data channel PDSCH.The control channel PDCCH of the carrier wave f2 of first base station part subframe with
Data channel PDSCH is each configured to idle channel, does not send control information and data message, so that will not be to the load of the second base station
Ripple f2 subframe produces interference.Similarly, the control channel PDCCH and data channel of the carrier wave f1 of the second base station part subframe
PDSCH is also configured as idle channel, does not send control information and data message, therefore, will not be to the carrier wave f1's of first base station
Subframe produces interference.It is thus possible to it is effectively reduced between first base station and the second base station, the interference to neighbor base station signal.
More specifically, it is configured to the another of idle channel as by the control channel PDCCH in subframe and data channel PDSCH
At least one sub-frame configuration of at least one frequency domain carriers can be almost blank subframe by a kind of embodiment, first base station
(Almost Blank Subframe, ABS).Accordingly, more than one other sub-frame configuration are almost blank by the second base station
Frame ABS.
For ABS well-known to those skilled in the art, I will not elaborate.When base station is by sub-frame configuration ABS, except must
Outside the information such as reference symbol, synchronizing symbol and the broadcast message wanted, other information is not retransmited.So as to when some of this base station
When subframe is set to ABS, then the base station is disturbed adjacent base station smaller in position corresponding to ABS.
For the different frequency domain carriers in component carrier, the carrier wave of high-frequency frequency domain can generally improve network capacity, and
The carrier wave of low frequency frequency domain can then meet larger range of covering.For example, for 2.6GHz and 2.1GHz carrier aggregation,
2.6GHz carrier wave can improve capacity, and 2.1GHz carrier wave can mainly meet larger range of covering.Therefore, further
Ground, first base station and the component carrier of the second base station can be classified.
For example, the rank of component carrier according to the frequency domain size of component carrier, can be set, in first base station and the second base
In the one of base station stood, frequency domain is bigger, and carrier-grade is higher, in another base station of first base station Yu the second base station,
Frequency domain is bigger, and carrier-grade is lower.
For example, using first base station as macro base station, the second base station for other any one it is lower compared with macro base station power
Base station, such as pico base stations.For the rank of macro base station component carrier is set, frequency domain is bigger, and carrier-grade is lower, 2.6GHz
Carrier wave be low level carrier wave, 2.1GHz carrier wave is low level carrier wave.Conversely, for the rank of pico base stations component carrier
For setting, frequency domain is bigger, and carrier-grade is higher, and 2.6GHz carrier wave is high-level carrier wave, the rudimentary carrier waves of 2.1GHz.
Shown in Figure 9, Fig. 9 shows another implementation of heterogeneous network little Zhong areas disturbance coordination method provided by the present invention
The carrier-grade schematic diagram of example.5 carrier waves f1, f2, f3, f4, f5 polymerization are supported in first base station and the second base station, wherein the
The carrier-grade of one base station is that from high to low, the carrier-grade of the second base station is from low to high.
Component carrier is carried out be classified it is other in the case of, order of each base station according to carrier-grade can be caused, successively
It is configured.
For example, first base station is clipped to high level order according to component carrier by rudimentary, at least one of component carrier
Control information is not transmitted at least one subframe of frequency domain carriers, the second base station is then clipped to low level according to component carrier by advanced
Order, do not transmit control information in more than one other subframe in component carrier beyond at least one subframe.
It is configured above-mentioned according to rank,, may for first base station for embodiment shown in Fig. 5
The control channel PDCCH for low level carrier wave subframe occur is both configured to not transmit control information, due to needing the control of other carrier waves
Channel PDCCH processed carries out cross scheduling, therefore, in another embodiment, for the load in addition to the carrier wave of highest level
Ripple, first base station are clipped to high level order according to component carrier by rudimentary, and first base station is clipped to according to component carrier by rudimentary
High level order.Similarly, for the carrier wave in addition to the carrier wave of lowest level, the second base station is according to component carrier by advanced
The order of low level is clipped to, control letter is not transmitted in more than one other subframe in component carrier beyond at least one subframe
Breath.
In various embodiments above, being arranged to not transmit the subframe of control information includes a frame of at least one frequency domain carriers
In part subframe or whole subframes.Control is not transmitted in part subframe of the first base station in an a kind of frame of frequency domain carriers
Information processed, according to configuration information of the first base station on polymerizeing carrier wave, the second base station is in component carrier beyond the part subframe
More than one other subframe on do not transmit control information.When whole subframes of the first base station in an a kind of frame of frequency domain carriers
On do not transmit control information, the second base station can in the component carrier whole sub-frame transmission control information.
According to one embodiment of the inventive method, actual loading and/or second base of the first base station according to first base station
The loading demand stood, high level order is clipped to by rudimentary according to component carrier, determines at least the one of at least one frequency domain carriers
Individual subframe, control information is not transmitted at least one subframe of at least one of component carrier frequency domain carriers.Accordingly, second
Base station according to the actual loading of the second base station and/or the loading demand of first base station, according to component carrier by it is advanced be clipped to it is rudimentary
Other order, more than one other subframe beyond at least one subframe are determined, in component carrier beyond at least one subframe
More than one other subframe on do not transmit control information.By dynamically according to the load of first base station and/or the second base station,
The utilization of resources of carrier wave is adjusted, resource utilization can be improved.
For example, exemplified by configuring ABS in above-described embodiment, first base station be able to can incite somebody to action according to the capacity requirement of the second base station
First base station low level carrier wave f2 whole sub-frame configurations are ABS, if the carrier wave f2 of first base station whole subframes configure
For ABS, can not still meet the needs of the second Base Station Compatibility, can be ABS by the advanced carrier wave f1 of first base station part sub-frame configuration.
According to one embodiment of the inventive method, first base station in response to the request of the interference coordination of the second base station,
Control information is not transmitted at least one subframe of at least one of component carrier frequency domain carriers, obtains first base station on polymerization
The configuration information of carrier wave.
According to one embodiment of the inventive method, first base station does not transmit control information in component carrier in subframe,
Control information is not transmitted specific to which carrier wave which subframe or first base station is predefined using static mode
's.Similar, the second base station does not transmit control information in component carrier or according in which subframe of which carrier wave
Do not transmit control information in subframe in component carrier and preset in one base station.
According to one embodiment of the inventive method, the second base station does not pass in component carrier in which subframe of which carrier wave
Defeated control information, can be the first base according to first base station after first base station is obtained on polymerizeing the configuration information of carrier wave
Stand by first base station on polymerize carrier wave configuration information be sent to the second base station, so as to the second base station obtain first base station on
It polymerize the configuration information of carrier wave.Interacting for information is realized by X2 interface between first base station and the second base station.For example, pass through X2
Interface obtains configuration information of the first base station on polymerizeing carrier wave, or load information etc..
According to one embodiment of the inventive method, the second base station is clipped to the suitable of low level according to component carrier by advanced
Sequence, control information is not transmitted in more than one other subframe in component carrier beyond at least one subframe and is specifically included：The
Two base stations after power, according to first base station on polymerize carrier wave configuration information, according to opposite with first base station component carrier
Order, do not transmit control information in more than one other subframe in component carrier beyond at least one subframe.
Above in each embodiment of the method, first base station can be high-power base station, and the second base station can be low-power base
Stand.Wherein, high-power base station can include macro base station.Low power base station can include：Micro- station, pico- station, Home eNodeB, relaying
Stand and Remote Radio Unit.
Method for cell interference coordination in heterogeneous network based on the various embodiments described above of the present invention, for same in multicarrier
Individual frequency carrier, each base station can not transmit adjacent base station control of the subframe position as this base station transmission signal of control information
Channel processed, do not disturbed with the control channel between causing by adjacent base station, so as to realize the heterogeneous network for supporting carrier aggregation
Coordinating district interference in network, the spectrum efficiency of cell edge is effectively improved, so as to improve the heterogeneous network for supporting carrier aggregation
The quality of service of cell edge in network.
Figure 10 shows the composition schematic diagram of heterogeneous network embodiment provided by the present invention.The heterogeneous network of the embodiment can
For realizing the operation of the above-mentioned each method embodiment of the present invention.
As shown in Figure 10, heterogeneous network includes the adjacent base station 1020 of first base station 1010 and second, and heterogeneous network is supported
Carrier aggregation, the component carrier being polymerize in carrier aggregation include two or more frequency domain carriers.First base station 1010 carries in composition
Control information is not transmitted at least one subframe of at least one of ripple frequency domain carriers, first base station 1010 is obtained and is carried on polymerization
The configuration information of ripple.Second base station 1020 is according to configuration information of the first base station 1020 on polymerizeing carrier wave, in component carrier
Control information is not transmitted in more than one other subframe beyond at least one subframe, first base station 1020 is not in component carrier
Transmit and transmit control information at least one subframe of control information.
The above embodiment of the present invention provide heterogeneous network, according to first base station on polymerize carrier wave configuration information,
In the frequency domain carriers, the second base station can not transmit first base station control of the subframe position as the second base station of control information
Channel, to cause the control channel of the second base station not disturbed by first base station.Similarly, the second base station should in the component carrier
Control information is not transmitted in other subframes beyond subframe, to avoid the control channel to first base station from producing interference.Each base station
The subframe position that adjacent base station can not transmitted to control information sends the control channel of signal as this base station, to cause each other
Between control channel do not disturbed by adjacent base station, so as to, realize support carrier aggregation heterogeneous network in area interference
Coordinate.
Corresponding with a kind of foregoing embodiment of the method, in heterogeneous network another kind embodiment, first base station will at least one
Physical downlink control channel PDCCH at least one subframe of kind frequency domain carriers is configured to idle channel, makes at least one frequency
Control channel PDCCH at least one subframe of domain carrier wave does not transmit control information, obtains first base station on polymerizeing carrier wave
Configuration information.Control channel PDCCH in more than one other subframe is configured to idle channel by the second base station, makes other one
Control channel PDCCH in individual above subframe does not transmit control information.
Corresponding with a kind of foregoing embodiment of the method, in heterogeneous network another kind embodiment, first base station will at least one
Physical downlink control channel PDCCH at least one subframe of kind frequency domain carriers is configured to idle channel, at least one frequency domain
PDSCH at least one subframe of carrier wave, at least one subframe by other carrier waves beyond at least one frequency domain carriers
PDCCH cross schedulings；PDCCH in more than one other subframe is configured to idle channel by the second base station, other one with
PDSCH in upper subframe, by more than one other son in other carrier waves beyond the frequency domain carriers of more than one other subframe place
PDSCH cross schedulings in frame.
Corresponding with a kind of foregoing embodiment of the method, in heterogeneous network another kind embodiment, first base station will at least one
Control channel PDCCH and data channel PDSCH at least one subframe of kind frequency domain carriers is configured to idle channel, makes at least
Control channel PDCCH in a kind of at least one subframe of frequency domain carriers does not transmit control information, makes at least one frequency domain carriers
At least one subframe in data channel PDSCH not transmitting data informations, obtain configuration of the first base station on polymerizeing carrier wave
Information.Control channel PDCCH in more than one other subframe and data channel PDSCH are configured to idle letter by the second base station
Road, the control channel PDCCH in more than one other subframe is not transmitted control information, make the number in more than one other subframe
It is believed that road PDSCH not transmitting data informations.
More specifically, it is configured to the another of idle channel as by the control channel PDCCH in subframe and data channel PDSCH
At least one sub-frame configuration of at least one frequency domain carriers can be almost blank subframe by a kind of embodiment, first base station
ABS.More than one other sub-frame configuration are almost blank subframe ABS by the second base station.
It is corresponding with a kind of foregoing embodiment of the method, in a kind of embodiment of heterogeneous network, according to the frequency domain of component carrier
Size, the rank of component carrier is set, in one of base station of first base station Yu the second base station, frequency domain is bigger, carrier level
Not higher, in another base station of first base station Yu the second base station, frequency domain is bigger, and carrier-grade is lower.
Corresponding with a kind of foregoing embodiment of the method, in heterogeneous network another kind embodiment, first base station carries in composition
Not transmitting control information at least one subframe of at least one of ripple frequency domain carriers includes：First base station according to component carrier by
It is rudimentary to be clipped to high level order, do not transmit control letter at least one subframe of at least one of component carrier frequency domain carriers
Breath；Control information bag is not transmitted in more than one other subframe in component carrier beyond at least one subframe in the second base station
Include：Second base station according to component carrier by the advanced order for being clipped to low level, in component carrier beyond at least one subframe
Control information is not transmitted in more than one other subframe.
It is corresponding with a kind of foregoing embodiment of the method, in a kind of embodiment of heterogeneous network, it is arranged to not transmit control letter
The subframe of breath includes part subframe or whole subframes in a frame of at least one frequency domain carriers.I.e. first base station is in a kind of frequency
Do not transmit control information in part subframe in one frame of domain carrier wave, according to first base station on polymerize carrier wave configuration information,
Control information is not transmitted in more than one other subframe in component carrier beyond the part subframe in the second base station.When the first base
Do not transmit control information in whole subframes in an a kind of frame of frequency domain carriers of standing, the second base station is can be in the component carrier
Middle whole sub-frame transmission control information.
Corresponding with a kind of foregoing embodiment of the method, in a kind of embodiment of heterogeneous network, first base station is according to the first base
The actual loading stood and/or the loading demand of the second base station, high level order is clipped to by rudimentary according to component carrier, it is determined that extremely
A kind of at least one subframe of few frequency domain carriers, is not passed at least one subframe of at least one of component carrier frequency domain carriers
Defeated control information；Second base station is according to the actual loading of the second base station and/or the loading demand of first base station, according to component carrier
By the advanced order for being clipped to low level, more than one other subframe beyond at least one subframe are determined, in component carrier extremely
Control information is not transmitted in more than one other subframe beyond a few subframe.By dynamically according to first base station and/or
The load of second base station, the utilization of resources of carrier wave is adjusted, resource utilization can be improved.
Corresponding with a kind of foregoing embodiment of the method, in a kind of embodiment of heterogeneous network, first base station carries according to composition
Ripple is clipped to high level order by rudimentary, and control is not transmitted at least one subframe of at least one of component carrier frequency domain carriers
Information processed includes：For the carrier wave in addition to the carrier wave of highest level, first base station according to component carrier by it is rudimentary be clipped to it is advanced
Other order, first base station are clipped to high level order according to component carrier by rudimentary.
Corresponding with a kind of foregoing embodiment of the method, in a kind of embodiment of heterogeneous network, the second base station carries according to composition
Ripple is not passed by the advanced order for being clipped to low level in more than one other subframe in component carrier beyond at least one subframe
Defeated control information includes：For the carrier wave in addition to the carrier wave of lowest level, the second base station is clipped to according to component carrier by advanced
The order of low level, control information is not transmitted in more than one other subframe in component carrier beyond at least one subframe.
Corresponding with a kind of foregoing embodiment of the method, in a kind of embodiment of heterogeneous network, first base station is in component carrier
At least one of do not transmit control information at least one subframe of frequency domain carriers, obtain first base station matching somebody with somebody on polymerization carrier wave
Confidence breath includes：First base station carries in response to being asked with the interference coordination of the second base station at least one of component carrier frequency domain
Control information is not transmitted at least one subframe of ripple, obtains configuration information of the first base station on polymerizeing carrier wave.
It is corresponding with a kind of foregoing embodiment of the method, in a kind of embodiment of heterogeneous network, first base station is obtained on poly-
After the configuration information for closing carrier wave, in addition to：First base station is sent to the by first base station on polymerizeing the configuration information of carrier wave
Two base stations.
Corresponding with a kind of foregoing embodiment of the method, in a kind of embodiment of heterogeneous network, the second base station carries according to composition
Ripple is not passed by the advanced order for being clipped to low level in more than one other subframe in component carrier beyond at least one subframe
Defeated control information includes：
Second base station after power, according to first base station on polymerize carrier wave configuration information, according to first base station group
The order opposite into carrier wave, control letter is not transmitted in more than one other subframe in component carrier beyond at least one subframe
Breath.
Above in each heterogeneous network embodiment, first base station can be high-power base station, and the second base station can be low work(
Rate base station.Wherein, high-power base station can include macro base station.Low power base station can include：Micro- station, pico- station, Home eNodeB,
Relay station and Remote Radio Unit.
Above in each heterogeneous network embodiment, the mode of carrier aggregation polymerize for continuous carrier or discontinuous carrier gathers
Any one in conjunction.
Based on the heterogeneous network of the various embodiments described above of the present invention, for the same frequency carrier in multicarrier, each base station
The subframe position that adjacent base station can not transmitted to control information sends the control channel of signal as this base station, to cause each other
Between control channel do not disturbed by adjacent base station, so as to, realize support carrier aggregation heterogeneous network in area interference association
Adjust, effectively improve the spectrum efficiency of cell edge, so as to improve the industry of cell edge in the heterogeneous network for supporting carrier aggregation
Business quality.
So far, method for cell interference coordination and isomery in a kind of heterogeneous network according to the present invention is described in detail
Network.In order to avoid the design of the masking present invention, some details known in the field are not described.Those skilled in the art's root
According to above description, completely it can be appreciated how implementing technical scheme disclosed herein.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and its
The difference of its embodiment, same or analogous part cross-reference between each embodiment.It is real for heterogeneous network
For applying example, because it is substantially corresponding with embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
Method, the heterogeneous network of the present invention may be achieved in many ways.For example, can by software, hardware, firmware or
Person's software, hardware, firmware any combinations come realize the present invention method and system.The step of for methods described it is above-mentioned suitable
Sequence is not limited to order described in detail above merely to illustrate, the step of method of the invention, unless otherwise
Special instruction.In addition, in certain embodiments, the present invention can be also embodied as recording program in the recording medium, these journeys
Sequence includes being used for the machine readable instructions for realizing the method according to the invention.Thus, the present invention also covering storage is used to perform root
According to the recording medium of the program of the method for the present invention.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area
Art personnel it should be understood that above example merely to illustrating, the scope being not intended to be limiting of the invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (30)
1. the method for cell interference coordination in a kind of heterogeneous network, the heterogeneous network includes adjacent first base station and the second base
Stand, the heterogeneous network supports carrier aggregation, and the component carrier being polymerize in the carrier aggregation carries including two or more frequency domains
Ripple, it is characterised in that methods described includes：
First base station does not transmit control information at least one subframe of at least one of component carrier frequency domain carriers, obtains
Configuration information of one base station on polymerizeing carrier wave；
According to first base station on polymerize carrier wave configuration information, the second base station at least one subframe described in component carrier with
Control information is not transmitted in more than one outer other subframe, control information is transmitted at least one subframe；
According to the frequency domain size of component carrier, the rank of the component carrier is set, in first base station and the second base station wherein
In one base station, frequency domain is bigger, and carrier-grade is higher, and in another base station of first base station Yu the second base station, frequency domain is bigger,
Carrier-grade is lower；
First base station does not transmit control information at least one subframe of at least one of component carrier frequency domain carriers to be included：The
One base station is clipped to high level order according to component carrier by rudimentary, at least the one of at least one of component carrier frequency domain carriers
Control information is not transmitted in individual subframe；
Control letter is not transmitted in more than one other subframe described in component carrier beyond at least one subframe in the second base station
Breath includes：Second base station is clipped to high level order according to component carrier by rudimentary, at least one son described in component carrier
Control information is not transmitted in more than one other subframe beyond frame.
2. according to the method for claim 1, it is characterised in that first base station is at least one of component carrier frequency domain carriers
At least one subframe on do not transmit control information and include：
First base station configures the physical downlink control channel PDCCH at least one subframe of at least one frequency domain carriers
For idle channel, the PDCCH at least one subframe of at least one frequency domain carriers is set not transmit control information；
Second base station is described in component carrier beyond at least one frequency domain carriers at least one subframe of other frequency domain carriers
Not transmitting control information includes：
PDCCH in more than one described other subframe is configured to idle channel by the second base station, make it is described it is other more than one
PDCCH in subframe does not transmit control information.
3. according to the method for claim 2, it is characterised in that the first base station is by least one frequency domain carriers
Physical downlink control channel PDCCH at least one subframe is configured to idle channel, and at least one frequency domain carriers are extremely
Physical Downlink Shared Channel PDSCH in a few subframe, by the institute of other carrier waves beyond at least one frequency domain carriers
State the PDCCH cross schedulings at least one subframe；
PDCCH in more than one described other subframe is configured to idle channel by second base station, described other one with
PDSCH in upper subframe, other one described in other carrier waves beyond other more than one subframe places frequency domain carriers
PDCCH cross schedulings in individual above subframe.
4. according to the method for claim 1, it is characterised in that first base station is at least one of component carrier frequency domain carriers
At least one subframe on do not transmit control information and include：
PDCCH at least one subframe of at least one frequency domain carriers and PDSCH are configured to idle letter by first base station
Road, the PDCCH at least one subframe of at least one frequency domain carriers is not transmitted control information, make at least one
PDSCH at least one subframe of frequency domain carriers not transmitting data information；
Second base station is described in component carrier beyond at least one frequency domain carriers at least one subframe of other frequency domain carriers
Not transmitting control information includes：
PDCCH in more than one described other subframe and PDSCH are configured to idle channel by the second base station, make described other one
PDCCH in individual above subframe does not transmit control information, the PDSCH in more than one described other subframe is not transmitted data letter
Breath.
5. according to the method for claim 4, it is characterised in that first base station by least one frequency domain carriers at least
PDCCH and PDSCH in one subframe, which is configured to idle channel, to be included：
At least one sub-frame configuration of at least one frequency domain carriers is almost blank subframe ABS by first base station；
PDCCH and PDSCH in more than one described other subframe is configured to idle channel by the second base station to be included：
More than one described other sub-frame configuration are almost blank subframe ABS by the second base station.
6. the method according to claim 3 or 4, it is characterised in that more than one son of at least one frequency domain carriers
Frame includes part subframe or whole subframes in a frame of at least one frequency domain carriers.
7. according to the method for claim 1, it is characterised in that the first base station is according to the actual loading of first base station
And/or second base station loading demand, be clipped to high level order by rudimentary according to component carrier, determine at least one frequency
At least one subframe of domain carrier wave, control is not transmitted at least one subframe of at least one frequency domain carriers described in component carrier
Information processed；
Second base station according to the actual loading of the second base station and/or the loading demand of first base station, according to component carrier by
It is rudimentary to be clipped to high level order, more than one other subframe beyond at least one subframe are determined, in component carrier
Control information is not transmitted in more than one other subframe beyond at least one subframe.
8. according to the method for claim 7, it is characterised in that first base station according to component carrier by it is rudimentary be clipped to it is high-level
Order, at least one subframe of at least one of component carrier frequency domain carriers not transmitting control information includes：
For the carrier wave in addition to the carrier wave of highest level, first base station according to component carrier by it is rudimentary be clipped to it is high level suitable
Sequence, first base station are clipped to high level order according to component carrier by rudimentary.
9. according to the method for claim 8, it is characterised in that the second base station according to component carrier by it is low it is advanced be clipped to height
The order of rank, control information is not transmitted in more than one other subframe described in component carrier beyond at least one subframe
Including：
For the carrier wave in addition to the carrier wave of highest level, the second base station according to component carrier by it is rudimentary be clipped to it is high level suitable
Sequence, control information is not transmitted in more than one other subframe described in component carrier beyond at least one subframe.
10. according to the method for claim 9, it is characterised in that the second base station advanced is clipped to height according to component carrier by low
The order of low level, control letter is not transmitted in more than one other subframe described in component carrier beyond at least one subframe
Breath includes：
Second base station after power, according to first base station on polymerize carrier wave configuration information, according to first base
The opposite order of component carrier of standing, do not pass in more than one other subframe described in component carrier beyond at least one subframe
Defeated control information.
11. according to the method for claim 1, it is characterised in that first base station carries at least one of component carrier frequency domain
Control information is not transmitted at least one subframe of ripple, obtain first base station includes on polymerizeing the configuration information of carrier wave：
The first base station carries in response to being asked with the interference coordination of second base station at least one of component carrier frequency domain
Control information is not transmitted at least one subframe of ripple, obtains configuration information of the first base station on polymerizeing carrier wave.
12. according to the method for claim 1, it is characterised in that obtain configuration information of the first base station on polymerizeing carrier wave
Afterwards, in addition to：
The first base station is sent to the second base station by first base station on polymerizeing the configuration information of carrier wave.
13. according to the method described in claim 1-5,7-12 any one, it is characterised in that the first base station is Gao Gong
Rate base station, second base station are low power base station.
14. according to the method for claim 13, it is characterised in that the high-power base station includes macro base station；
The low power base station includes：Micro- station, pico- station, Home eNodeB, relay station and Remote Radio Unit.
15. according to the method described in claim 1-5,7-12 any one, it is characterised in that the mode of the carrier aggregation
For any one in continuous carrier polymerization or discontinuous carrier polymerization.
16. a kind of heterogeneous network, the heterogeneous network includes adjacent first base station and the second base station, and the heterogeneous network is supported
Carrier aggregation, the component carrier being polymerize in the carrier aggregation include two or more frequency domain carriers, it is characterised in that described
Control information is not transmitted in one base station at least one subframe of at least one of component carrier frequency domain carriers, obtains first base station
On polymerizeing the configuration information of carrier wave；
Second base station is according to configuration information of the first base station on polymerizeing carrier wave, at least one son described in component carrier
Control information is not transmitted in more than one other subframe beyond frame, control information is transmitted at least one subframe；
According to the frequency domain size of component carrier, the rank of the component carrier is set, in first base station and the second base station wherein
In one base station, frequency domain is bigger, and carrier-grade is higher, and in another base station of first base station Yu the second base station, frequency domain is bigger,
Carrier-grade is lower；
First base station does not transmit control information at least one subframe of at least one of component carrier frequency domain carriers to be included：The
One base station is clipped to high level order according to component carrier by rudimentary, at least the one of at least one of component carrier frequency domain carriers
Control information is not transmitted in individual subframe；
Control letter is not transmitted in more than one other subframe described in component carrier beyond at least one subframe in the second base station
Breath includes：Second base station according to component carrier by the advanced order for being clipped to low level, at least one son described in component carrier
Control information is not transmitted in more than one other subframe beyond frame.
17. heterogeneous network according to claim 16, it is characterised in that first base station is at least one of component carrier frequency
Not transmitting control information at least one subframe of domain carrier wave includes：
First base station configures the physical downlink control channel PDCCH at least one subframe of at least one frequency domain carriers
For idle channel, the PDCCH at least one subframe of at least one frequency domain carriers is set not transmit control information；
Second base station is described in component carrier beyond at least one frequency domain carriers at least one subframe of other frequency domain carriers
Not transmitting control information includes：
PDCCH in more than one described other subframe is configured to idle channel by the second base station, make it is described it is other more than one
PDCCH in subframe does not transmit control information.
18. heterogeneous network according to claim 17, it is characterised in that the first base station is by least one frequency domain
PDCCH at least one subframe of carrier wave is configured to idle channel, at least one subframe of at least one frequency domain carriers
In PDSCH, by least one subframe of other carrier waves beyond at least one frequency domain carriers PDCCH intersect
Scheduling；
PDCCH in more than one described other subframe is configured to idle channel by second base station, described other one with
PDSCH in upper subframe, other one described in other carrier waves beyond other more than one subframe places frequency domain carriers
PDCCH cross schedulings in individual above subframe.
19. heterogeneous network according to claim 16, it is characterised in that first base station is at least one of component carrier frequency
Not transmitting control information at least one subframe of domain carrier wave includes：
PDCCH at least one subframe of at least one frequency domain carriers and PDSCH are configured to idle letter by first base station
Road, the PDCCH at least one subframe of at least one frequency domain carriers is not transmitted control information, make at least one
PDSCH at least one subframe of frequency domain carriers not transmitting data information；
Second base station is described in component carrier beyond at least one frequency domain carriers at least one subframe of other frequency domain carriers
Not transmitting control information includes：
PDCCH in more than one described other subframe and PDSCH are configured to idle channel by the second base station, make described other one
PDCCH in individual above subframe does not transmit control information, the PDSCH in more than one described other subframe is not transmitted data letter
Breath.
20. heterogeneous network according to claim 19, it is characterised in that first base station is by least one frequency domain carriers
At least one subframe in PDCCH and PDSCH be configured to idle channel and include：
At least one sub-frame configuration of at least one frequency domain carriers is almost blank subframe ABS by first base station；
PDCCH and PDSCH in more than one described other subframe is configured to idle channel by the second base station to be included：
More than one described other sub-frame configuration are almost blank subframe ABS by the second base station.
21. the heterogeneous network according to claim 18 or 19, it is characterised in that one of at least one frequency domain carriers
Above subframe includes part subframe or whole subframes in a frame of at least one frequency domain carriers.
22. heterogeneous network according to claim 16, it is characterised in that the first base station is according to the reality of first base station
Load and/or the loading demand of the second base station, are clipped to high level order, it is determined that described at least one according to component carrier by rudimentary
At least one subframe of frequency domain carriers is planted, is not passed at least one subframe of at least one frequency domain carriers described in component carrier
Defeated control information；
Second base station according to the actual loading of the second base station and/or the loading demand of first base station, according to component carrier by
It is rudimentary to be clipped to high level order, more than one other subframe beyond at least one subframe are determined, in component carrier
Control information is not transmitted in more than one other subframe beyond at least one subframe.
23. heterogeneous network according to claim 22, it is characterised in that first base station is clipped to according to component carrier by rudimentary
High level order, at least one subframe of at least one of component carrier frequency domain carriers not transmitting control information includes：
For the carrier wave in addition to the carrier wave of highest level, first base station according to component carrier by it is rudimentary be clipped to it is high level suitable
Sequence, first base station are clipped to high level order according to component carrier by rudimentary.
24. heterogeneous network according to claim 23, it is characterised in that the second base station is according to component carrier by low high-level
To the order of high low level, control is not transmitted in more than one other subframe described in component carrier beyond at least one subframe
Information processed includes：
For the carrier wave in addition to the carrier wave of highest level, the second base station is clipped to the suitable of low level according to component carrier by advanced
Sequence, control information is not transmitted in more than one other subframe described in component carrier beyond at least one subframe.
25. heterogeneous network according to claim 24, it is characterised in that the second base station is according to component carrier by low high-level
To the order of high low level, control is not transmitted in more than one other subframe described in component carrier beyond at least one subframe
Information processed includes：
Second base station after power, according to first base station on polymerize carrier wave configuration information, according to first base
The opposite order of component carrier of standing, do not pass in more than one other subframe described in component carrier beyond at least one subframe
Defeated control information.
26. heterogeneous network according to claim 16, it is characterised in that first base station is at least one of component carrier frequency
Control information is not transmitted at least one subframe of domain carrier wave, obtain first base station includes on polymerizeing the configuration information of carrier wave：
The first base station carries in response to being asked with the interference coordination of second base station at least one of component carrier frequency domain
Control information is not transmitted at least one subframe of ripple, obtains configuration information of the first base station on polymerizeing carrier wave.
27. heterogeneous network according to claim 16, it is characterised in that obtain configuration of the first base station on polymerizeing carrier wave
After information, in addition to：
The first base station is sent to the second base station by first base station on polymerizeing the configuration information of carrier wave.
28. according to the heterogeneous network described in claim 16-20,22-27 any one, it is characterised in that first base
It is low power base station to stand as high-power base station, second base station.
29. heterogeneous network according to claim 28, it is characterised in that the high-power base station includes macro base station；
The low power base station includes：Micro- station, pico- station, Home eNodeB, relay station and Remote Radio Unit.
30. according to the heterogeneous network described in claim 16-20,22-27 any one, it is characterised in that the carrier wave gathers
The mode of conjunction is any one in continuous carrier polymerization or discontinuous carrier polymerization.
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| JP2017526216A (en) * | 2014-06-30 | 2017-09-07 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Subframe processing method and subframe processing device |
| CN105407465B (en) * | 2014-08-06 | 2019-08-23 | 北京信威通信技术股份有限公司 | Wireless colony network-building method and system |
| CN104519548B (en) * | 2014-12-08 | 2019-11-26 | 北京邮电大学 | Obtain the method and device of network capacity |
| CN106161300B (en) * | 2015-03-25 | 2019-05-24 | 上海诺基亚贝尔股份有限公司 | Method and analyzer for dynamic implementation channeling |
| CN107925902A (en) * | 2015-08-07 | 2018-04-17 | 华为技术有限公司 | Sending method, equipment and the system of data packet |
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