CN102869039A - Base station scheduling method and device - Google Patents
Base station scheduling method and device Download PDFInfo
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- CN102869039A CN102869039A CN2012103114039A CN201210311403A CN102869039A CN 102869039 A CN102869039 A CN 102869039A CN 2012103114039 A CN2012103114039 A CN 2012103114039A CN 201210311403 A CN201210311403 A CN 201210311403A CN 102869039 A CN102869039 A CN 102869039A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/121—Wireless traffic scheduling for groups of terminals or users
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
Abstract
The embodiment of the invention discloses a base station scheduling method and a base station scheduling device. The method comprises the following steps of: configuring corresponding muting patterns for small cells which belong to different groups, and notifying a micro base station which covers each small cell, wherein the micro base station is connected with a macro base station, a muting sub-frame in a data frame is defined in the muting patterns, and a signal is not transmitted in the muting sub-frame; and acquiring a measurement result which is fed back by a user terminal of each small cell which is configured with the muting pattern after channel quality indication measurement for the user terminal is performed, and scheduling for the user terminal according to the measurement result and the muting pattern of each small cell. By the method and the device, interference between the small cells can be reduced, and the overall performance of small cell networks (SCNs) can be improved.
Description
Technical field
The present invention relates to field of wireless communication, relate in particular to a kind of base-station scheduling method and device.
Background technology
In recent years, significantly increase along with intelligent mobile terminal equipment, its network communication amount also increases substantially thereupon, usually causes existing large-scale base station network can not deal with so large demand data, so that mobile terminal device does not also have the situation of signal in base station range.For this reason, small-cell network (Small Cell Networks has been proposed, SCNs), SCNs refers to lay a large amount of low costs, lower powered small base station (or claiming little base station) in macro base station coverage area, forms the heterogeneous system with the different node types that cover.Because the geographic distance between access point and the serviced subscriber equipment (User Equipment, UE) is reduced, effectively elevator system throughput and network whole efficiency.
In SCNs, owing to lay some small base stations, the macro base station coverage splits into some Microcells (or claiming small-cell) by original single subdistrict, and system can obtain huge cell splitting gain.Wherein, small-cell will be born main traffic carrying capacity, and macrocell extensively covers principal security.
The inventor finds in the research process to prior art, and along with the development of SCNs, the quantity of small-cell and density are with increasing, at this time, it is more and more serious that interference problem between small-cell will become, therefore, the interference that how to solve between small-cell has become problem demanding prompt solution among the SCNs.
Summary of the invention
Embodiment of the invention technical problem to be solved is, a kind of base-station scheduling method and device are provided.Can reduce the interference between the small-cell, improve the overall performance of SCNs.
In order to solve the problems of the technologies described above, on the one hand, the embodiment of the invention provides a kind of base-station scheduling method, comprising:
Dispose little base station of corresponding silent mode and each small-cell of notice covering for the small-cell that belongs to different grouping, described little base station is the little base station that is connected with macro base station, defined the subframe of mourning in silence in the Frame in the described silent mode, transmitted signal not in the subframe of mourning in silence;
Acquisition is configured under the described silent mode at described each small-cell, the user terminal of described each small-cell carries out the measurement result fed back behind the channel quality indication measurement, and is that described user terminal is dispatched according to the silent mode of described measurement result, described each small-cell.
On the other hand, the embodiment of the invention also provides a kind of base station scheduling device, comprising:
The silent mode dispensing unit, be used to the small-cell that belongs to different grouping to dispose little base station of corresponding silent mode and each small-cell of notice covering, described little base station is the little base station that is connected with macro base station, defined the subframe of mourning in silence in the Frame in the described silent mode, transmitted signal not in the subframe of mourning in silence;
Measuring unit be used for to obtain to be configured under the described silent mode at described each small-cell, and the user terminal of described each small-cell carries out the measurement result fed back behind the channel quality indication measurement;
Scheduling unit be used for the measurement result according to described measuring unit acquisition, and the measurement pattern of the silent mode of described each small-cell and described user terminal is that described user terminal is dispatched.
On the one hand, the embodiment of the invention also provides a kind of macro base station, comprises aforesaid base station scheduling device again.
The embodiment of the invention also provides a kind of little base station, comprising:
The silent mode receiving element be used for to receive the silent mode that sends with locally-attached macro base station, has defined the subframe of mourning in silence in the Frame when being grouped in scheduling under the small-cell that described little base station covers in the described silent mode, transmitted signal not in the subframe of mourning in silence;
The measurement result retransmission unit, be used for obtaining to be configured under the described silent mode at described each small-cell, the user terminal of described each small-cell carries out the measurement result fed back behind the channel quality indication measurement, and notify described macro base station, so that described macro base station is that described user terminal is dispatched according to the silent mode of described measurement result, described each small-cell;
Scheduling processing unit is used for according to the scheduling of described macro base station described user terminal being carried out dispatch deal.
The embodiment of the invention also provides a kind of user terminal, comprising:
Measure processing unit, be used for small-cell of living in and be configured to described silent mode lower time, carry out the channel quality indication measurement, defined the subframe of mourning in silence in the Frame when being grouped in scheduling under the described small-cell that little base station covers in the described silent mode, transmitted signal not in the subframe of mourning in silence;
The measurement feedback unit is used for to described little base station or the measurement result of macro base station feedback, so that described macro base station is that described user terminal is dispatched with the silent mode of described measurement result and described each small-cell.
Implement the embodiment of the invention, has following beneficial effect: in embodiments of the present invention, each small-cell is divided into groups, for the small-cell of different grouping disposes corresponding silent mode, so that the small-cell in the respective packets is mourned in silence in corresponding subframe, namely on the subframe of mourning in silence, do not send data and reference signal, reduce the interference between the different small-cells.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is an idiographic flow schematic diagram of the base-station scheduling method in the embodiment of the invention;
Fig. 2 is a concrete schematic diagram of the silent mode in the embodiment of the invention;
Fig. 3 is a concrete schematic diagram of the measurement pattern in the embodiment of the invention;
Fig. 4 is another idiographic flow schematic diagram of the base-station scheduling method in the embodiment of the invention;
Fig. 5 is a concrete schematic diagram that forms of the base station scheduling device in the embodiment of the invention;
Fig. 6 is a concrete schematic diagram that forms of the measuring unit in the embodiment of the invention;
Fig. 7 is another concrete schematic diagram that forms of the base station scheduling device in the embodiment of the invention;
Fig. 8 is a concrete schematic diagram that forms of the little base station in the embodiment of the invention;
Fig. 9 is a concrete schematic diagram that forms of the user terminal in the embodiment of the invention;
Figure 10 is a concrete schematic diagram that forms of the measurement processing unit in the embodiment of the invention;
When being dispenser UE, Figure 11 carries out the result schematic diagram of emulation with even random fashion;
When being dispenser UE, Figure 12 carries out the result schematic diagram of emulation in the focus mode.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention for application scenarios be SCNs, in the small-cell network, have a macro base station, in the macro base station coverage spreading a large amount of little base stations, little base station is connected with macro base station by wired.In embodiments of the present invention, small-cell is divided into groups with certain standard, to the corresponding silent mode of different packet configuration (Muting Patten), small-cell in the respective packets is mourned in silence (Muting) in corresponding subframe (hereinafter referred to as the subframe of mourning in silence), so just can reduce the interference between the different small-cells.
Further, in order further to improve transmission quality, can cooperate above-mentioned silent mode, the UE that small-cell in the different small-cell groupings is served formulates different measurement patterns, measure according to this measurement pattern, can better obtain the actual interference situation between each small-cell, according to this actual interference situation dispatch (as, determine transmission code rate etc.) just can improve efficiency of transmission, thus reduce the impact that the interference between the small-cell causes transmission.
As shown in Figure 1, be a specific embodiment of the base-station scheduling method in the embodiment of the invention, the method comprises the steps.
101, dispose little base station of corresponding silent mode and each small-cell of notice covering for the small-cell that belongs to different grouping, described little base station is the little base station that is connected with macro base station, defined the subframe of mourning in silence in the Frame in the described silent mode, transmitted signal not in the subframe of mourning in silence.
Wherein, when disposing corresponding silent mode for the small-cell that belongs to different grouping, can be numbered described different silent mode, described numbering notice be covered little base station of each small-cell.As long as the corresponding concrete silent mode of pre-configured numbering in little base station.To reduce expense.
If setting the cycle of silent mode (Muting Pattern) is 10 subframes, 10 subframes of definition are corresponding to 10 milliseconds of (ms in Long Term Evolution (Long Term Evolution, LTE) related protocol.) configurable silent mode as shown in Figure 2 then, in this example, the ratio of subframe in 10 subframes of mourning in silence in this silent mode of representative such as 0/10,1/10,2/10.
Before this step, can also comprise a grouping step: the small-cell that described little base station covers is divided into groups as the number of the strong jamming residential quarter of the user terminal under other small-cells or the Reference Signal Received Quality that is linked into the user terminal of each small-cell according to the user terminal number that is linked into each small-cell, each small-cell.
Certainly, the grouping standard also can be not limited to foregoing description, does not do one by one herein and gives unnecessary details.
Be understandable that, will definitely be to find out from above-mentioned several group markups, its concrete group result may be time dependent, different such as the user terminal number that constantly is linked into each small-cell in difference, then its group result may be different, thereby in embodiments of the present invention, can periodically dispose corresponding silent mode for the small-cell that belongs to different grouping.
102, obtain to be configured under the described silent mode at described each small-cell, the user terminal of described each small-cell carries out the measurement result fed back behind the channel quality indication measurement, and is that described user terminal is dispatched according to the silent mode of described measurement result, described each small-cell.
The channel quality indication measurement of describing in this step can be taked existing metering system, also can adopt the mode of measuring according to measurement pattern.A kind of mode after adopting, the signal gain in the time of can further improving transmission improves transmission quality.Then this moment, this step can comprise following process:
A, according to the configuration described silent mode be to be linked into the user terminal allocating and measuring pattern of described each small-cell and to notify described user terminal, defined the subframe of mourning in silence in the Frame, high interference subframe and low interfering subframe in the described measurement pattern.
If by silent mode allocating and measuring pattern as shown in Figure 2, be grouped into example with 2, wherein the small-cell in the 1st grouping adopts the silent mode of 0/10 among Fig. 2 to carry out Muting, and the residential quarter in the 2nd grouping adopts the silent mode of 5/10 among Fig. 2 to carry out Muting, then configurable measurement pattern as shown in Figure 3.
Can find out from the silent mode that this measurement pattern is corresponding, the subframe of not mourning in silence in the silent mode that adopts in the grouping 1, thereby 2 interference that cause of dividing into groups 1 pair to divide into groups are stably; And in the silent mode that divides into groups to adopt in 2 every a frame subframe of mourning in silence appears, thereby 1 interference that causes of dividing into groups 2 pairs to divide into groups become when being (, when occurring mourning in silence subframe, there is not the signal transmission then not disturb, when not being exists the signal transmission then can cause interference when mourning in silence subframe).According to above-mentioned situation, then during the allocating and measuring pattern, as can be known in grouping 1, when in the grouping 2 when mourning in silence subframe, 1 the subframe of dividing into groups is disturbed little, then this moment configuration packet 1 subframe for hanging down interfering subframe; In grouping 2, mourn in silence during subframe for non-, 1 the subframe of dividing into groups is disturbed large, then this moment configuration packet 1 subframe be the high interference subframe.In like manner, the subframe if the subframe of grouping in 2 mourned in silence, then in measurement pattern, this sub-frame configuration subframe that becomes to mourn in silence, UE need to not measure in this subframe, and for the non-subframe of mourning in silence, then is configured to the high interference subframe.
Certainly, be illustrated in figure 3 as the situation of two groupings, also may have the situation of more groupings, the rest may be inferred gets final product, and does not do herein and gives unnecessary details.Certainly, consider the above-mentioned configuration principle of measuring subframe, when subframe is mourned in silence in configuration, can be as shown in Figure 2 like this, can be with the sub-frame configuration of mourning in silence in roughly the same subframe position in different silent modes, as, the subframe of mourning in silence of the same position of being configured in is just arranged in 1/10 and 2/10 these two kinds of silent modes; Like this, when the allocating and measuring pattern, than the interference effect between the grouping that is easier to confirm to dispose different silent modes.
B, obtain described user terminal and carry out the measurement result fed back behind the channel quality indication measurement according to described measurement pattern, and be that described user terminal is dispatched according to the silent mode of described measurement result, described each small-cell and the measurement pattern of described user terminal.
Specifically can be in this step: if the subframe of current small-cell is normal sub-frames, and be the high interference subframe, then adopt the high interference channel quality indication measurement result of user terminal feedback to dispatch; If the subframe of current small-cell is normal sub-frames, and be low interfering subframe, then adopt the low interference channel quality indication measurement result of user terminal feedback to dispatch; If the subframe of current small-cell is the subframe of mourning in silence, then the user terminal in this small-cell is not dispatched.
Accordingly, then user terminal is specially when measuring: described user terminal is measured in the high interference subframe when carrying out high interference channel quality indication measurement, obtains high interference channel quality indication measurement result; Described user terminal is measured in low interfering subframe when hanging down interference channel quality indication measurement, obtains low interference channel quality indication measurement result.
With next base-station scheduling method from macro base station side, the UE side comprehensive description embodiment of the invention, as shown in Figure 4, be another idiographic flow schematic diagram of the base-station scheduling method in the embodiment of the invention.In this example, can be central control unit in the macro base station with the main body of carrying out the method, on physical layer, this central control unit can be arranged in the macro base station, it also can be independent setting, even the central control unit of a plurality of macro base stations can be stacked in the machine room, this central control unit should be equipped with enough computing functions certainly, can finish the functions such as small-cell grouping related in the embodiment of the invention, each grouping silent mode selection.
201, central control unit divides into groups to connected small-cell according to parameter.
Here the parameter that grouping can foundation can be following three kinds any one, but is not limited to these three kinds:
Group technology 1: the UE number that is linked into small-cell;
Group technology 2: add up each small-cell as the number of the strong jamming residential quarter of the UE under other small-cells;
Group technology 3: the RSRQ that adds up the UE of each small-cell.
202, central control unit is the different different Muting Pattern of packet configuration.The example of Muting Pattern as shown in Figure 2.
203, central control unit notifies different Muting Pattern to each small-cell in the correspondence grouping, and namely notice covers little base station of each small-cell.Here the method for notice can be numbered different Muting Pattern, will number and notify each small-cell.
204, central control unit is determined measurement pattern (Pattern) according to the Muting Pattern of each grouping, and notifies the UE that each small-cell is served in each grouping by high-rise configuration signal (for example RRC signaling) with measurement pattern.
205, UE carries out corresponding channel quality indication (Channel Quality Indicator, CQI) measurement according to measuring Pattern.Namely, when carrying out high interference CQI measurement, then in the high interference subframe, measure and calculate corresponding Signal to Interference plus Noise Ratio (Signal to Interference plus Noise Ratio, SINR), SINR is obtained corresponding high interference CQI after processing accordingly; When hanging down interference CQI measurement, then in low interfering subframe, measure, obtain the low CQI of interference.
206, UE gives service small-cell or macrocell (namely feeding back to corresponding little base station or macro base station) with measurement feedback, and small-cell or macrocell send to central control unit with measurement result.
207, central control unit is according to measurement result, and dispatches according to the Muting Pattern of each small-cell, namely controls each little base station and specifically dispatches.Concrete, if the subframe of current small-cell is normal sub-frames, further, if according to measuring Pattern, current subframe is the high interference subframe, then adopts the high interference CQI of UE feedback to dispatch; If according to measuring Pattern, current subframe is low interfering subframe, then adopt the low interference CQI of UE feedback to dispatch.If the subframe of current small-cell is the Muting subframe, then the UE in this small-cell is not done scheduling.
As seen, in embodiments of the present invention, each small-cell is divided into groups, for the small-cell of different grouping disposes corresponding silent mode, so that the small-cell in the respective packets is mourned in silence in corresponding subframe, namely on the subframe of mourning in silence, do not send data, reduce the interference between the different small-cells.
Further, the UE that small-cell in the different small-cell groupings is served according to silent mode formulates different measurement patterns, and measure accordingly, like this, in the time of on measurement result, just can reflecting for different UEs, annoyance level between each small-cell is dispatched the impact of interference on transmitting that just can reduce between the different small-cells according to measurement result, improves the efficient of transfer of data.
As shown in Figure 5, a concrete schematic diagram that forms for the base station scheduling device in the embodiment of the invention, this base station scheduling device 1 can be arranged in the macro base station, this device 1 comprises: silent mode dispensing unit 10, be used to the small-cell that belongs to different grouping to dispose little base station of corresponding silent mode and each small-cell of notice covering, described little base station is the little base station that is connected with macro base station, has defined the subframe of mourning in silence in the Frame in the described silent mode, transmitted signal not in the subframe of mourning in silence; Measuring unit 12 be used for to obtain to be configured under the described silent mode at described each small-cell, and the user terminal of described each small-cell carries out the measurement result fed back behind the channel quality indication measurement; Scheduling unit 14 be used for the measurement result according to described measurement result acquiring unit acquisition, and the measurement pattern of the silent mode of described each small-cell and described user terminal is that described user terminal is dispatched.
Wherein, as shown in Figure 6, measuring unit 12 specifically can comprise: measurement pattern configuration module 120, the described silent mode that is used for according to configuration is to be linked into the user terminal allocating and measuring pattern of described each small-cell and to notify described user terminal, has defined the subframe of mourning in silence in the Frame, high interference subframe and low interfering subframe in the described measurement pattern; Measurement result acquisition module 122 is used for obtaining described user terminal and carries out the measurement result fed back behind the channel quality indication measurement according to described measurement pattern.
As shown in Figure 7, this device 1 also can comprise: grouped element 11, be connected with described silent mode dispensing unit 10, be used for the small-cell that described little base station covers being divided into groups as the number of the strong jamming residential quarter of the user terminal under other small-cells or the Reference Signal Received Quality that is linked into the user terminal of each small-cell according to the user terminal number that is linked into each small-cell, each small-cell.
Wherein, scheduling unit 14 specifically can be used for, if the subframe of current small-cell is normal sub-frames, and is the high interference subframe, then adopts the high interference channel quality indication measurement result of user terminal feedback to dispatch; If the subframe of current small-cell is normal sub-frames, and be low interfering subframe, then adopt the low interference channel quality indication measurement result of user terminal feedback to dispatch; If the subframe of current small-cell is the subframe of mourning in silence, then the user terminal in this small-cell is not dispatched.
Silent mode dispensing unit 10 specifically also is used for, and for the small-cell that belongs to different grouping disposes corresponding silent mode, and described different silent mode is numbered, and described numbering notice is covered little base station of each small-cell.
As shown in Figure 8, it then is a kind of composition schematic diagram of little base station of being connected with macro base station, little base station 2 comprises: silent mode receiving element 20, be used for receiving the silent mode that sends with locally-attached macro base station, defined the subframe of mourning in silence in the Frame when being grouped in scheduling under the small-cell that described little base station covers in the described silent mode, transmitted signal not in the subframe of mourning in silence; Measurement result retransmission unit 22, be used for obtaining to be configured under the described silent mode at described each small-cell, the user terminal of described each small-cell carries out the measurement result fed back behind the channel quality indication measurement, and notify described macro base station, so that described macro base station is that described user terminal is dispatched according to the silent mode of described measurement result, described each small-cell; Scheduling processing unit 24 is used for according to the scheduling of described macro base station described user terminal being carried out dispatch deal.
When measuring for UE allocating and measuring pattern, then the measurement result retransmission unit 22, also be used for obtaining described user terminal and carry out the measurement result fed back behind the channel quality indication measurement according to measurement pattern, and notify described macro base station, so that described macro base station is according to described measurement result, the silent mode of described each small-cell and the measurement pattern of described user terminal are that described user terminal is dispatched, wherein, described measurement pattern is that described macro base station disposes according to described silent mode, has defined the subframe of mourning in silence in the Frame in described measurement pattern, high interference subframe and low interfering subframe.
As shown in Figure 9, it then is a concrete schematic diagram that forms of the user terminal in the small-cell that covers of the little base station of access, this user terminal 3 comprises: measure processing unit 30, be used for small-cell of living in and be configured to described silent mode lower time, carry out the channel quality indication measurement, defined the subframe of mourning in silence in the Frame when being grouped in scheduling under the described small-cell that little base station covers in the described silent mode, transmitted signal not in the subframe of mourning in silence; Measurement feedback unit 32 is used for to described little base station or the measurement result of macro base station feedback, so that described macro base station is that described user terminal is dispatched with the silent mode of described measurement result and described each small-cell.
Wherein, as shown in figure 10, measuring processing unit 30 can comprise, measurement pattern receiver module 300, be used for receiving the measurement pattern that macro base station sends, described macro base station is connected with little base station of the small-cell that covers described user terminal access, wherein, described measurement pattern is that described macro base station disposes according to silent mode, has defined the subframe of mourning in silence in the Frame, high interference subframe and low interfering subframe in described measurement pattern; Measurement process module 302 is used for carrying out the channel quality indication measurement according to described measurement pattern.
Wherein, measurement process module 302 specifically is used for, and when carrying out high interference channel quality indication measurement, measures in the high interference subframe, obtains high interference channel quality indication measurement result; When hanging down interference channel quality indication measurement, in low interfering subframe, measure, obtain low interference channel quality indication measurement result.
Consistent among term among the said apparatus embodiment and concrete function and the preceding method embodiment do not done herein and given unnecessary details.
Be the concrete effect of check above-described embodiment, the inventor has carried out emulation testing as an example of LTE-A example.Whole system comprises 19 macro base stations, 57 macrocells, even 20 small-cells of distribution at random of each macrocell, small-cell is divided into 2 groups according to group technology 1, adopt 0/10 Muting Pattern for the more grouping of service UE number, 1/10,2/10,4/10 and 5/10 Muting Pattern is adopted respectively among Fig. 2 in less grouping for the service UE number.
Obtain simulation result as shown in figure 11.As shown in figure 11, baseline is that small-cell is not Muting Pattern, the result who dispatches according to prior art.When each macrocell evenly during at random 40 UE of dispenser, average and cell edge can obtain spectrum efficiency as shown in Figure 9 in the residential quarter to adopt the scheme of the embodiment of the invention to compare baseline, wherein, the ordinate representative adopts the scheme of the embodiment of the invention to compare the spectrum efficiency percentage that baseline (namely comparing the spectrum efficiency of the prior art scheme of the Muting Pattern that does not adopt the packet configuration small-cell) increases, abscissa representative adopts respectively among Fig. 2 1/10,2/10,4/10 and 5/10 Muting Pattern dispatches, the residential quarter on average refers to the spectrum efficiency that the residential quarter is average, and cell edge refers to be in the spectrum efficiency of cell edge UE.When each macrocell during with 40 UE of mode dispenser of hotspot's distribution, average and cell edge can obtain to gain as shown in figure 12 in the residential quarter to adopt the present invention program to compare baseline.
Can find out from above-mentioned simulation result, as long as adopt the scheme of the embodiment of the invention, no matter specifically adopt which kind of silent mode, during dispenser UE with evenly at random or the hotspot's distribution mode, no matter be the average spectrum efficiency in residential quarter, or the spectrum efficiency of cell edge UE all is higher than the spectrum efficiency (being baseline values) in the prior art scheme.
Namely, in embodiments of the present invention, each small-cell is divided into groups, for the small-cell of different grouping disposes corresponding silent mode, so that the small-cell in the respective packets is mourned in silence in corresponding subframe, namely on the subframe of mourning in silence, do not send data, reduce the interference between the different small-cells, improve the efficient of transfer of data.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to come the relevant hardware of instruction to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process such as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or store-memory body (Random Access Memory, RAM) etc. at random.
Above disclosed is a kind of preferred embodiment of the present invention only, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (16)
1. a base-station scheduling method is characterized in that, described method comprises:
Dispose little base station of corresponding silent mode and each small-cell of notice covering for the small-cell that belongs to different grouping, described little base station is the little base station that is connected with macro base station, defined the subframe of mourning in silence in the Frame in the described silent mode, transmitted signal not in the subframe of mourning in silence;
Acquisition is configured under the described silent mode at described each small-cell, the user terminal of described each small-cell carries out the measurement result fed back behind the channel quality indication measurement, and is that described user terminal is dispatched according to the silent mode of described measurement result, described each small-cell.
2. the method for claim 1, it is characterized in that, described acquisition is configured under the described silent mode at described each small-cell, the user terminal of described each small-cell carries out the measurement result fed back behind the channel quality indication measurement, and is that described user terminal is dispatched and comprised according to the silent mode of described measurement result, described each small-cell:
Described silent mode according to configuration is to be linked into the user terminal allocating and measuring pattern of described each small-cell and to notify described user terminal, has defined the subframe of mourning in silence in the Frame, high interference subframe and low interfering subframe in the described measurement pattern;
Obtain described user terminal and carry out the measurement result fed back behind the channel quality indication measurement according to described measurement pattern, and be that described user terminal is dispatched according to the silent mode of described measurement result, described each small-cell and the measurement pattern of described user terminal.
3. method as claimed in claim 2 is characterized in that, described method also comprises:
The small-cell that described little base station covers is divided into groups as the number of the strong jamming residential quarter of the user terminal under other small-cells or the Reference Signal Received Quality that is linked into the user terminal of each small-cell according to the user terminal number that is linked into each small-cell, each small-cell.
4. method as claimed in claim 2 or claim 3 is characterized in that, described silent mode and the measurement pattern of described user terminal according to described measurement result, described each small-cell is that described user terminal is dispatched and comprised:
If the subframe of current small-cell is normal sub-frames, and be the high interference subframe, then adopt the high interference channel quality indication measurement result of user terminal feedback to dispatch;
If the subframe of current small-cell is normal sub-frames, and be low interfering subframe, then adopt the low interference channel quality indication measurement result of user terminal feedback to dispatch;
If the subframe of current small-cell is the subframe of mourning in silence, then the user terminal in this small-cell is not dispatched.
5. method as claimed in claim 4 is characterized in that, the measurement result that the described user terminal of described acquisition carries out feeding back behind the channel quality indication measurement according to described measurement pattern comprises before:
Described user terminal is measured in the high interference subframe when carrying out high interference channel quality indication measurement, obtains high interference channel quality indication measurement result;
Described user terminal is measured in low interfering subframe when hanging down interference channel quality indication measurement, obtains low interference channel quality indication measurement result.
6. method as claimed in claim 5 is characterized in that, described is that the small-cell that belongs to different grouping disposes corresponding silent mode and notifies the little base station that covers each small-cell to comprise:
For the small-cell that belongs to different grouping disposes corresponding silent mode, and described different silent mode is numbered, described numbering notice covered little base station of each small-cell.
7. a base station scheduling device is characterized in that, described device comprises:
The silent mode dispensing unit, be used to the small-cell that belongs to different grouping to dispose little base station of corresponding silent mode and each small-cell of notice covering, described little base station is the little base station that is connected with macro base station, defined the subframe of mourning in silence in the Frame in the described silent mode, transmitted signal not in the subframe of mourning in silence;
Measuring unit be used for to obtain to be configured under the described silent mode at described each small-cell, and the user terminal of described each small-cell carries out the measurement result fed back behind the channel quality indication measurement;
Scheduling unit be used for the measurement result according to described measuring unit acquisition, and the measurement pattern of the silent mode of described each small-cell and described user terminal is that described user terminal is dispatched.
8. device as claimed in claim 7 is characterized in that, described measuring unit comprises:
The measurement pattern configuration module, the described silent mode that is used for according to configuration is to be linked into the user terminal allocating and measuring pattern of described each small-cell and to notify described user terminal, has defined the subframe of mourning in silence in the Frame, high interference subframe and low interfering subframe in the described measurement pattern;
The measurement result acquisition module is used for obtaining described user terminal and carries out the measurement result fed back behind the channel quality indication measurement according to described measurement pattern.
9. device as claimed in claim 8 is characterized in that, described device also comprises:
Grouped element, be connected with described silent mode dispensing unit, be used for the small-cell that described little base station covers being divided into groups as the number of the strong jamming residential quarter of the user terminal under other small-cells or the Reference Signal Received Quality that is linked into the user terminal of each small-cell according to the user terminal number that is linked into each small-cell, each small-cell.
10. install as claimed in claim 8 or 9, it is characterized in that described scheduling unit specifically is used for,
If the subframe of current small-cell is normal sub-frames, and be the high interference subframe, then adopt the high interference channel quality indication measurement result of user terminal feedback to dispatch;
If the subframe of current small-cell is normal sub-frames, and be low interfering subframe, then adopt the low interference channel quality indication measurement result of user terminal feedback to dispatch;
If the subframe of current small-cell is the subframe of mourning in silence, then the user terminal in this small-cell is not dispatched.
11. device as claimed in claim 10, it is characterized in that described silent mode dispensing unit specifically also is used for, for the small-cell that belongs to different grouping disposes corresponding silent mode, and described different silent mode is numbered, described numbering notice is covered little base station of each small-cell.
12. a macro base station is characterized in that, described macro base station comprises such as each described base station scheduling device in the claim 7 to 11.
13. a little base station is characterized in that, described little base station comprises:
The silent mode receiving element be used for to receive the silent mode that sends with locally-attached macro base station, has defined the subframe of mourning in silence in the Frame when being grouped in scheduling under the small-cell that described little base station covers in the described silent mode, transmitted signal not in the subframe of mourning in silence;
The measurement result retransmission unit, be used for obtaining to be configured under the described silent mode at described each small-cell, the user terminal of described each small-cell carries out the measurement result fed back behind the channel quality indication measurement, and notify described macro base station, so that described macro base station is that described user terminal is dispatched according to the silent mode of described measurement result, described each small-cell;
Scheduling processing unit is used for according to the scheduling of described macro base station described user terminal being carried out dispatch deal.
14. a user terminal is characterized in that, described user terminal comprises:
Measure processing unit, be used for small-cell of living in and be configured to described silent mode lower time, carry out the channel quality indication measurement, defined the subframe of mourning in silence in the Frame when being grouped in scheduling under the described small-cell that little base station covers in the described silent mode, transmitted signal not in the subframe of mourning in silence;
The measurement feedback unit is used for to described little base station or the measurement result of macro base station feedback, so that described macro base station is that described user terminal is dispatched with the silent mode of described measurement result and described each small-cell.
15. user terminal as claimed in claim 14 is characterized in that, described measurement processing unit comprises:
The measurement pattern receiver module, be used for receiving the measurement pattern that macro base station sends, described macro base station is connected with little base station of the small-cell that covers described user terminal access, wherein, described measurement pattern is that described macro base station disposes according to silent mode, has defined the subframe of mourning in silence in the Frame, high interference subframe and low interfering subframe in described measurement pattern;
Measurement process module is used for carrying out the channel quality indication measurement according to described measurement pattern;
16. user terminal as claimed in claim 15 is characterized in that, described measurement process module specifically is used for,
When carrying out high interference channel quality indication measurement, in the high interference subframe, measure, obtain high interference channel quality indication measurement result;
When hanging down interference channel quality indication measurement, in low interfering subframe, measure, obtain low interference channel quality indication measurement result.
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| CN201210311403.9A CN102869039B (en) | 2012-08-29 | 2012-08-29 | A kind of base-station scheduling method and device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105813216A (en) | 2016-07-27 |
| CN102869039B (en) | 2016-04-20 |
| CN105813216B (en) | 2020-02-21 |
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