CN102036250B - Dynamic distribution method of uplink frequency band resource and base station - Google Patents
Dynamic distribution method of uplink frequency band resource and base station Download PDFInfo
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Abstract
The invention discloses a dynamic distribution method of an uplink frequency band resource, comprising the following steps of: dividing an uplink frequency band into a plurality of non-overlapping dispatching frequency sections in advance; using one of the dispatching frequency sections as a cell-edge user dispatching frequency section of a local cell; configuring a dispatching reference resourceblock for each dispatching frequency section; and using the dispatching reference resource block as a reference dynamic state to regulate each dispatching frequency section. The embodiment of the invention also provides a corresponding base station. In the technical scheme of the invention, because the position of the dispatching frequency section positioned in the middle of the frequency band can be dynamically regulated, the width of the dispatching frequency section positioned at both ends of the uplink frequency band is only regulated at one end, therefore, the invention is capable of expanding the dynamic regulating amplitude of the dispatching frequency section, reducing the generation of resource fragments, effectively reducing same frequency interference among cells and increasinginterference coordination effect and resource utilization rate of the uplink frequency band.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of upstream band dynamic allocation of resources method and base station.
Background technology
Long Term Evolution (Long Term Evolution, LTE) system adopts OFDM to insert (Orthogonal Frequency Division Multiple Access, OFDMA) technology, make and do not disturb mutually between the user in the home cell, thereby the band resource of whole system can be used in each residential quarter, but inevitably can cause presence of intercell interference because of channeling, particularly be in the closer user of home cell edge zone and neighbor cell edge customer distance, the minizone performance is interfered bigger.
For the shared channel that transmits data, can adopt Inter-Cell Interference Coordination (Inter cell interference coordination, ICIC) technology controls to reduce presence of intercell interference by band resource distribution and the power of coordinating each Cell Edge User, improves systematic function.Interference coordination technique with whole Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH) frequency band division is the frequency range of a plurality of non-overlapping copies, each frequency range comprises several Resource Block.The edge customer of neighbor cell uses different frequency range scheduling respectively, staggers mutually, avoids the generation of phase mutual interference.Cell base station is the edge customer Resources allocation according to the different method for distributing frequency band sources of diverse location definition of edge customer scheduling frequency range.
Existing dynamic interference coordination method distributes when dynamically adjusting the upstream band resource, it is mind-set boundary expansion from each frequency range, perhaps shrink to the center from the border of frequency range, owing to the center of each frequency range is fixed, thereby the amplitude of dynamically adjusting is limited.Suppose that the PUSCH frequency band has 15 Resource Block, from the low frequency to the high frequency, be designated as Resource Block 1, Resource Block 2...... Resource Block 15 successively, existing dynamic interference coordination method is 3 frequency ranges with this frequency band division, and first frequency range comprises Resource Block 1 to 5 when initial, centered by Resource Block 3; Second frequency range comprises Resource Block 6 to 10, centered by Resource Block 8; The 3rd frequency range comprises Resource Block 11 to 15, centered by Resource Block 13; In the dynamic adjustment process, the expansible maximum magnitude of first frequency range is restricted because arriving Resource Block 7, and is same so, and the adjusting range of second frequency range and second frequency range also is restricted.Like this, when the business load generation acute variation of residential quarter, dynamically the scope of adjusting may be not enough to satisfy the demand, and can limit the upstream band resource and distribute, and makes trade-off effect relatively poor.
Summary of the invention
The embodiment of the invention provides a kind of upstream band dynamic allocation of resources method and base station, thereby effectively reduces the minizone co-channel interference.
On the one hand, provide a kind of upstream band dynamic allocation of resources method, having comprised:
In advance upstream band is divided into N nonoverlapping scheduling frequency range, N is not less than 3 integer, and wherein, the 1st scheduling frequency range is positioned at the low frequency end of upstream band, and N scheduling frequency range is positioned at the front end of upstream band;
As the edge customer scheduling frequency range of home cell, and the edge customer scheduling frequency range of home cell and the edge customer scheduling frequency range of neighbor cell are respectively different scheduling frequency ranges with any scheduling frequency range in N nonoverlapping scheduling frequency range;
If the edge customer scheduling frequency range of home cell is M scheduling frequency range, M is greater than 1 and less than the integer of N, then dynamically adjust M scheduling reference resources piece in the position of upstream band according to the change width of M-1 and M+1 scheduling frequency range, M scheduling frequency range is centered by M scheduling reference resources piece;
If the edge customer scheduling frequency range of home cell is the 1st scheduling frequency range, according to the variation of home cell edge customer business load or the change width of the 2nd scheduling frequency range, be end points is dynamically adjusted the 1st scheduling frequency range at the other end width with the 1st scheduling reference resources piece then;
If the edge customer scheduling frequency range of home cell is N scheduling frequency range, according to the variation of home cell edge customer business load or the change width of N-1 scheduling frequency range, be end points is dynamically adjusted N scheduling frequency range at the other end width with N scheduling reference resources piece then.
On the one hand, provide a kind of base station, having comprised:
Scheduling frequency range dispensing unit, be used in advance upstream band being divided into N nonoverlapping scheduling frequency range, N is not less than 3 integer, wherein, the 1st scheduling frequency range is positioned at the low frequency end of described upstream band, N scheduling frequency range is positioned at the front end of described upstream band, as the edge customer scheduling frequency range of home cell, and the edge customer scheduling frequency range of home cell and the edge customer scheduling frequency range of neighbor cell are respectively different scheduling frequency ranges with any scheduling frequency range in described N nonoverlapping scheduling frequency range;
Dynamic adjustment unit, be used for if the edge customer scheduling frequency range of scheduling frequency range dispensing unit configuration home cell is M scheduling frequency range, M is greater than 1 and less than the integer of N, then dynamically adjust M scheduling reference resources piece in the position of described upstream band according to the change width of M-1 and M+1 scheduling frequency range, M scheduling frequency range is centered by described M scheduling reference resources piece; If the edge customer scheduling frequency range of scheduling frequency range dispensing unit configuration home cell is the 1st scheduling frequency range, according to the variation of home cell edge customer business load or the change width of the 2nd scheduling frequency range, be end points is dynamically adjusted the 1st scheduling frequency range at the other end width with the 1st scheduling reference resources piece then; If the edge customer scheduling frequency range of described scheduling frequency range dispensing unit configuration home cell is N scheduling frequency range, according to the variation of home cell edge customer business load or the change width of N-1 scheduling frequency range, be end points is dynamically adjusted N scheduling frequency range at the other end width with N scheduling reference resources piece then.
The upstream band dynamic allocation of resources method that adopts the embodiment of the invention to provide, if the edge customer scheduling frequency range of described home cell is M scheduling frequency range, M is greater than 1 and less than the integer of N, then dynamically adjust M scheduling reference resources piece in the position of described upstream band according to the change width of M-1 and M+1 scheduling frequency range, described M scheduling frequency range is centered by described M scheduling reference resources piece; If the edge customer scheduling frequency range of described home cell is the 1st scheduling frequency range, according to the variation of home cell edge customer business load or the change width of the 2nd scheduling frequency range, be end points is dynamically adjusted described the 1st scheduling frequency range at the other end width with the 1st scheduling reference resources piece then; If the edge customer scheduling frequency range of described home cell is N scheduling frequency range, according to the variation of home cell edge customer business load or the change width of N-1 scheduling frequency range, be end points is dynamically adjusted described N scheduling frequency range at the other end width with N scheduling reference resources piece then.Thereby, can be when interference coordination, the resource of coordinating flexibly between each residential quarter is distributed, and guarantee the 1st or the scheduling reference resources piece of N scheduling frequency range can not produce resource fragmentation, effectively reduce the minizone co-channel interference, and then can improve the interference coordination effect, improve the upstream band resource utilization.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is briefly introduced in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of upstream band dynamic allocation of resources method embodiment provided by the invention;
Fig. 2 divides among the upstream band dynamic allocation of resources method embodiment provided by the invention respectively to dispatch the schematic diagram of frequency range;
Fig. 3 is a kind of base station provided by the invention building-block of logic;
Fig. 4 is another kind of base station provided by the invention building-block of logic.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing, and obviously, described embodiment only is a part of embodiment of the present invention, 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 all other embodiment that obtain under the creative work prerequisite.
The embodiment of the invention provides a kind of upstream band dynamic allocation of resources method, base station.Below be elaborated respectively.
Please refer to Fig. 1, the embodiment of the invention provides a kind of upstream band dynamic allocation of resources method, and this method may further comprise the steps:
101, in advance upstream band is divided into N nonoverlapping scheduling frequency range, N is not less than 3 integer, and wherein, the 1st scheduling frequency range is positioned at the low frequency end of described upstream band, and N scheduling frequency range is positioned at the front end of described upstream band.
Initial at system group network, the length of each scheduling frequency range can be consistent, and the Resource Block quantity that can be used for distributing can be identical, but along with the time increases, according to the variation of community user business load, will dynamically adjust the scheduling frequency range, the length of each scheduling frequency range can be no longer consistent.The scheduling frequency range of a described N non-overlapping copies is three at least.
102, with any scheduling frequency range in described N nonoverlapping scheduling frequency range as the edge customer scheduling frequency range of home cell, and the edge customer scheduling frequency range of described home cell and the edge customer scheduling frequency range of neighbor cell are respectively different scheduling frequency ranges.
In long evolving system, for avoiding presence of intercell interference, the user of each residential quarter is divided into central user and edge customer at least.Do not disturb between the central user of each residential quarter, thereby central user can use whole uplink band to dispatch.And edge customer can only use one of them scheduling frequency range to dispatch.The edge customer of neighbor cell uses different scheduling frequency ranges, staggers in frequency, thereby avoids interference.
In one embodiment, if the user satisfies A3 entry condition (A3 Entering condition), then be defined as edge customer; If do not satisfy the A3 entry condition, then be defined as central user.This define method essence is to carry out user's differentiation according to the signal strength signal intensity in the residential quarter, and wherein the A3 entry condition is the message of a reflected signal intensity of base station transmission.Certainly, this define method is a kind of possibility, also can adopt existing other division of cells user's method, repeats no more herein.
Whole cell uplink frequency band can be divided into two parts: center frequency-band (or claiming central user scheduling frequency range) and edge customer scheduling frequency range.Residential quarter near point user and mid point user (being central user) are in center frequency-band scheduling, allocated frequency band resource, Cell Edge User is at edge customer scheduling frequency allocation band resource, wherein residential quarter near point user such as descending Reference Signal Received Power (RSRP, Reference Signal Received Power)＞=-85.
103, if the edge customer scheduling frequency range of described home cell is M scheduling frequency range, M is greater than 1 and less than the integer of N, then dynamically adjust M scheduling reference resources piece in the position of described upstream band according to the change width of M-1 and M+1 scheduling frequency range, described M scheduling frequency range is centered by described M scheduling reference resources piece.
Be positioned at the M frequency range at frequency band middle part in the position of upstream band, can dynamically adjust along with the change width of neighbor cell edge customer scheduling frequency range, the method fixing with respect to the center of existing each frequency range, can dynamically adjust the amplitude of each scheduling frequency range during interference coordination, thereby improve interference coordination effect and upstream band resource utilization.
104, if the edge customer scheduling frequency range of described home cell is the 1st scheduling frequency range, according to the variation of home cell edge customer business load or the change width of the 2nd scheduling frequency range, be end points is dynamically adjusted described the 1st scheduling frequency range at the other end width with the 1st scheduling reference resources piece then.
Being positioned at the 1st scheduling frequency range of upstream band low frequency end, can be that end points is realized one-sided width adjustment with the 1st scheduling reference resources piece, is specially, and only in other end adjustment, and the 1st this end of scheduling reference resources piece keeps fixing when adjusting width.For example, be that initial end points is expanded to high frequency with the 1st scheduling reference resources piece, perhaps, be that target endpoint is shunk to low frequency with the 1st scheduling reference resources piece.Thereby, can guarantee that the 1st this end of scheduling reference resources piece of the 1st scheduling frequency range can not produce resource fragmentation.
105, if the edge customer scheduling frequency range of described home cell is N scheduling frequency range, according to the variation of home cell edge customer business load or the change width of N-1 scheduling frequency range, be end points is dynamically adjusted described N scheduling frequency range at the other end width with N scheduling reference resources piece then.
Being positioned at the N scheduling frequency range of upstream band front end, can be that end points is realized one-sided width adjustment with N scheduling reference resources piece, is specially, and only in other end adjustment, and this end of N scheduling reference resources piece keeps fixing when adjusting width.For example, be that initial end points is expanded to low frequency with N scheduling reference resources piece, perhaps, be that target endpoint is shunk to high frequency with N scheduling reference resources piece.Thereby, can guarantee that this end of N scheduling reference resources piece of N scheduling frequency range can not produce resource fragmentation.
The upstream band dynamic allocation of resources method that adopts the embodiment of the invention to provide, if the edge customer scheduling frequency range of residential quarter is the M scheduling frequency range that is positioned at the frequency band middle part, then should the scheduling frequency range can dynamically adjust along with the change width of neighbor cell edge customer scheduling frequency range in the position of upstream band; If the edge customer scheduling frequency range of residential quarter is the 1st scheduling frequency range that is positioned at the upstream band low frequency end, perhaps for being positioned at the N scheduling frequency range of upstream band front end, only the reference resources piece with an end is that end points is dynamically adjusted at the other end, thereby the resource of coordinating flexibly between each residential quarter is distributed, can guarantee the 1st or this end of scheduling reference resources piece of N scheduling frequency range can not produce resource fragmentation, effectively reduce the minizone co-channel interference, and then can improve the interference coordination effect, improve the upstream band resource utilization.
Wherein, nonoverlapping scheduling frequency range is N, and N is not less than 3 positive integer, is called the 1st scheduling frequency range, the 2nd scheduling frequency range successively from the low frequency to the high frequency ... .. N dispatches frequency range.
Further, the 1st scheduling reference resources piece that is positioned at the 1st frequency range configuration of low frequency end can be defined as upstream band from first Resource Block of low frequency.
Further, the N scheduling reference resources piece that is positioned at the N frequency range configuration of front end can be defined as upstream band from first Resource Block of high frequency.
Further, the M scheduling reference resources piece that is positioned at the configuration of M scheduling frequency range can be defined as follows, wherein M greater than 1 and M less than N.At first defining A is to be positioned at M-1 scheduling frequency range from the position of first Resource Block of high frequency, B is positioned at M+1 scheduling frequency range from the position of first Resource Block of low frequency, then to define M scheduling reference resources piece accordingly be that upstream band is upper is set to the Resource Block of (A+B)/2, (A+B)/2 rounds downwards.
Illustrate, if A be upstream band from the 3rd Resource Block of low frequency, B be upstream band from the 7th Resource Block of low frequency, then M scheduling reference resources piece is that upstream band is from the 5th Resource Block of low frequency; If A be upstream band from the 3rd Resource Block of low frequency, B be upstream band from the 6th Resource Block of low frequency, then M scheduling reference resources piece is that upstream band is from the 4th Resource Block of low frequency.
Need to prove, owing to (A+B)/2 round downwards, the position of M scheduling reference resources piece may not be the positive center of M scheduling frequency range, so will centered by described M scheduling reference resources piece a correct understanding be arranged to described M scheduling frequency range herein.Certainly, for fear of misunderstanding, when (A+B)/2 being not integer, also can dispatch the reference resources piece to two adjacent Resource Block as M jointly, for example, (A+B)/2 be 4.5 o'clock, and the 4th and the 5th Resource Block dispatched the reference resources piece as M jointly.
In addition, also need to prove, can be when initial be the scheduling reference resources piece of each frequency range configuration basic edge customer scheduling frequency range as each corresponding residential quarter.
Define method according to above-mentioned scheduling reference resources piece, because the 1st scheduling reference resources piece is that upstream band is from first Resource Block of low frequency, N scheduling reference resources piece is that upstream band is from first Resource Block of high frequency, thereby divide timing carrying out resource, the Resource Block that is positioned at the upstream band two ends can use all the time, can not produce resource fragmentation.And be positioned at M frequency range in the middle part of the frequency band in the position of upstream band, can dynamically adjust along with the change width of neighbor cell edge customer scheduling frequency range, effectively reduce the minizone co-channel interference, and then can improve the interference coordination effect, improve the upstream band resource utilization.
Illustrate below in conjunction with Fig. 2, if upstream band has 15 Resource Block, from the low frequency to the high frequency, be designated as Resource Block 1, Resource Block 2...... Resource Block 15 successively, this upstream band is divided into three scheduling frequency ranges from the low frequency to the high frequency, so, the 1st frequency range minimum that is positioned at low frequency end can only comprise Resource Block 1, and maximum can comprise Resource Block 1 to 13; The 2nd frequency range minimum that is arranged in the frequency band middle part can only comprise any one of Resource Block 2 to 14, and maximum can comprise Resource Block 2 to 14; The 3rd frequency range minimum that is positioned at front end can only comprise Resource Block 15, and maximum can comprise Resource Block 3 to 15.As seen, adopt the present embodiment method, dynamically the scope of adjusting can reach maximization, and the Resource Block (as Resource Block 1 and 15) that is positioned at the upstream band two ends can dispatch use always, can not produce resource fragmentation.
In one embodiment, can adjust the width of the edge customer scheduling frequency range of home cell according to the change dynamics of home cell edge customer business load.For example: when the edge customer business load is higher than default higher limit, expand, when the edge customer business load is lower than default lower limit, shrink.Thereby edge customer just takies enough band resources when needed, is then discharging band resource for the edge customer utilization of neighbor cell when not required.
In another embodiment, can adjust the width of the edge customer scheduling frequency range of home cell according to the change dynamics of the edge customer business load of home cell and neighbor cell.For example: when the edge customer business load of home cell is higher than the edge customer business load of neighbor cell, expand, when the edge customer business load of home cell is lower than the edge customer business load of neighbor cell, shrink.Thereby edge customer just takies enough band resources when needed, is then discharging band resource for the edge customer utilization of neighbor cell when not required.
Further, before step 103, can also may further comprise the steps:
Receive the Indication message of the base station transmission of described neighbor cell, described Indication message carries the width adjustment information of the edge customer scheduling frequency range of described neighbor cell.
Further, after step 104, can may further comprise the steps:
Send Indication message to the base station of described neighbor cell, described Indication message carries the width adjustment information of described the 1st scheduling frequency range.
Further, after step 105, can may further comprise the steps:
Send Indication message to the base station of described neighbor cell, described Indication message carries the width adjustment information of described N scheduling frequency range.
In the present embodiment, each cell base station can obtain the adjustment information of each Cell Edge User scheduling frequency range mutually by sending indication (HII) message mutually, and then adjusts home cell edge customer scheduling frequency range accordingly.For example, home cell obtains edge, the center frequency-band loading condition of neighbor cell by reception HII message, and passes through edge, the center frequency-band loading condition of HII message informing neighbor cell home cell.When receiving the expression edge customer scheduling frequency range of adjacent area when home cell and adjust the HII message of (expansion or shrink), can compare with home cell frequency band division situation, if this Cell Edge User scheduling frequency range needs to adjust (shrinking or expansion), then adjust accordingly.
Certainly, each cell base station also can be finished interacting message by alternate manner, for example, each residential quarter sends to Element management system with the adjustment information of the edge customer scheduling frequency range of this residential quarter, and obtains the adjustment information of other each Cell Edge User scheduling frequency range by Element management system.
Adopt the upstream band dynamic allocation of resources method of the embodiment of the invention, because the position of the M scheduling frequency range that is positioned at the upstream band middle part of dividing can dynamically be adjusted, can be when interference coordination, effectively reduce the minizone co-channel interference, and then can improve the interference coordination effect, improve the upstream band resource utilization.And the N scheduling frequency range that is positioned at the 1st scheduling frequency range of upstream band low frequency end or is positioned at the upstream band front end is only at one end adjusted and is dispatched this end of reference resources piece and keeps fixing, can guarantee the 1st or this end of scheduling reference resources piece of N scheduling frequency range can not produce resource fragmentation.
Especially, can be respectively the 1st or the N that the 1st or the N scheduling frequency range definition that is positioned at the upstream band two ends is positioned at lowest frequency end and front end and dispatch the reference resources piece, for the M scheduling frequency range definition position that is positioned at the upstream band middle part is dispatched the dynamic M scheduling reference resources piece of adjusting of variation of frequency range with other, thereby, the amplitude that each scheduling frequency range is dynamically adjusted can reach maximization, can successfully manage the variation of community user business load, realize the maximization of the abundant interference coordination effect in minizone and upstream band resource utilization.
Application in concrete application scenarios is described in detail to embodiment of the invention upstream band dynamic allocation of resources method below.Suppose the scheduling frequency range that upstream band is divided into three non-overlapping copies, and with these three scheduling frequency ranges respectively as three edge customer scheduling frequency ranges of adjacent residential quarter in twos, and with these three residential quarters called after classification 1 residential quarter, classification 2 residential quarters and classification 3 residential quarters respectively.Please refer to Fig. 2:
For classification 1 residential quarter:
Networking is initial, to be positioned at the 1st scheduling frequency range of upstream band low frequency end as the edge customer scheduling frequency range of this residential quarter, first Resource Block of upstream band low frequency end is defined as the 1st scheduling reference resources piece of the 1st scheduling frequency range, frequency band centered by the 1st other upstream band of dispatching the reference resources piece.
When the edge customer business load in the residential quarter increases, edge customer scheduling frequency range dynamic expanding.This expansion action is to be original position with the 1st scheduling reference resources piece, is expanded to high frequency by low frequency, and to adapt to the variation of edge customer scheduling frequency range load, center frequency-band shrinks simultaneously.
When the center frequency-band business load in the residential quarter increases, center of housing estate frequency band meeting dynamic expanding, the frequency range of Cell Edge User scheduling is simultaneously shunk.This contractive action is that the 1st scheduling reference resources piece is the target location, is shunk to low frequency by high frequency.
When center of housing estate frequency band and edge customer scheduling frequency range business load and frequency band took the resource balanced proportion, the subdistrict frequency band resource can reach stable state.
For classification 3 residential quarters:
Networking is initial, to be positioned at the 3rd scheduling frequency range of upstream band front end as the edge customer scheduling frequency range of this residential quarter, first Resource Block of upstream band front end is defined as the 3rd scheduling reference resources piece of the 3rd scheduling frequency range, frequency band centered by the 3rd other upstream band of dispatching the reference resources piece.
When the edge customer business load in the residential quarter increases, edge customer scheduling frequency range dynamic expanding.This expansion action is to be original position with the 3rd scheduling reference resources piece, and by being expanded to low frequency by high frequency, to adapt to the variation of edge customer scheduling frequency range load, center frequency-band shrinks simultaneously.
When the center frequency-band business load in the residential quarter increases, center frequency-band meeting dynamic expanding, the edge frequency range is shunk simultaneously.This contractive action is that the 3rd scheduling reference resources piece is the target location, is shunk to high frequency by low frequency.
When center of housing estate frequency band and edge customer scheduling frequency range business load and frequency band took the resource balanced proportion, the subdistrict frequency band resource reached stable state.
For classification 2 residential quarters:
Networking is initial, will be positioned at the 2nd scheduling frequency range at upstream band middle part as the edge customer scheduling frequency range of this residential quarter, and defining one the 2nd scheduling reference resources piece is the scheduling reference resources piece of the 2nd scheduling frequency range.The 2nd scheduling reference resources piece position=(first resource block location of first resource block location+classification 3 Cell Edge User scheduling frequency range low frequency end of classification 1 Cell Edge User scheduling frequency range front end)/2.
Thereby the 2nd scheduling reference resources piece can be adjusted along with the adjustment of neighbor cell edge customer scheduling frequency range, can successfully manage the variation of neighbor cell edge customer business load.
When the increase of classification 1 Cell Edge User business load causes its edge customer scheduling frequency range expansion, suppose between classification 2 and the classification 3 Cell Edge User scheduling frequency range idle Resource Block is arranged, the 2nd scheduling reference resources piece of classification 2 residential quarters can move to high frequency, and the edge customer scheduling frequency range that drives whole classification 2 residential quarters moves to high frequency, thereby can effectively alleviate the unbalanced of different districts edge load, improve the effect of band resource utilance and interference coordination.Understand easily, when classification 3 Cell Edge User business loads changed, the processing mode of classification 2 residential quarters was similar, repeats no more herein.
When the edge customer business load of classification 2 residential quarters increases, the edge customer scheduling frequency range of classification 2 residential quarters is expanded to high frequency and low frequency two ends centered by the 2nd scheduling reference resources piece simultaneously, the mode of this while to the two ends expansion is fair to two adjacent residential quarters, ensured the scheduling fairness of the unbalanced scene of load.
Please refer to Fig. 3, the embodiment of the invention also provides a kind of base station, and this base station comprises: interconnective scheduling frequency range dispensing unit 201 and dynamic adjustment unit 202;
Scheduling frequency range dispensing unit 201, be used in advance upstream band being divided into N nonoverlapping scheduling frequency range, N is not less than 3 integer, wherein, the 1st scheduling frequency range is positioned at the low frequency end of described upstream band, N scheduling frequency range is positioned at the front end of described upstream band, as the edge customer scheduling frequency range of home cell, and the edge customer scheduling frequency range of described home cell and the edge customer scheduling frequency range of neighbor cell are respectively different scheduling frequency ranges with any scheduling frequency range in described N nonoverlapping scheduling frequency range;
In one embodiment, scheduling frequency range dispensing unit 201, also be used for definition scheduling reference resources piece, wherein, described the 1st scheduling reference resources piece is that described upstream band is from the 1st Resource Block of low frequency, described N scheduling reference resources piece is that described upstream band is from the 1st Resource Block of high frequency, the Resource Block of described M scheduling reference resources piece to be that described upstream band is upper be set to (A+B)/2, wherein A is that described M-1 scheduling reference resources piece is from the position of first Resource Block of high frequency, B is that described M+1 dispatches the reference resources piece from the position of first Resource Block of low frequency, and described (A+B)/2 round downwards.
Please refer to Fig. 4, in one embodiment, this base station also comprises:
Receiving element 203, for the Indication message that the base station that receives described neighbor cell sends, described Indication message carries the width adjustment information of the edge customer scheduling frequency range of described neighbor cell.
Transmitting element 204 be used for to send Indication message to the base station of described neighbor cell, and described Indication message carries the described the 1st or the width adjustment information of N scheduling frequency range.
In long evolving system, adopt the base station of present embodiment, if the edge customer scheduling frequency range of residential quarter is the M scheduling frequency range that is positioned at the frequency band middle part, then should the scheduling frequency range can dynamically adjust along with the change width of neighbor cell edge customer scheduling frequency range in the position of upstream band; If the edge customer scheduling frequency range of residential quarter is the 1st scheduling frequency range that is positioned at the upstream band low frequency end, perhaps for being positioned at the N scheduling frequency range of upstream band front end, only at one end adjust when dynamically adjusting width and dispatch this end maintenance of reference resources piece and fix, thereby can be when interference coordination, the resource of coordinating flexibly between each residential quarter is distributed, and guarantee the 1st or the scheduling reference resources piece of N scheduling frequency range can not produce resource fragmentation, effectively reduce the minizone co-channel interference, and then can improve the interference coordination effect, improve the upstream band resource utilization.
The embodiment of the invention also provides a kind of long evolving system, and this system comprises an above cell combination, and each cell combination comprises N residential quarter adjacent one another are;
The adjacent one another are residential quarter of described N respectively with one in N the nonoverlapping scheduling frequency range that in advance upstream band is divided into as the edge customer scheduling frequency range, N is not less than 3 integer, wherein, the 1st scheduling frequency range is positioned at the low frequency end of described upstream band, and N scheduling frequency range is positioned at the front end of described upstream band.
Wherein, with the base station of M scheduling frequency range as the residential quarter of edge customer scheduling frequency range, dynamically adjust M scheduling reference resources piece in the position of described upstream band according to the change width of M-1 and M+1 scheduling frequency range, M is greater than 1 and less than the integer of N, and described M scheduling frequency range is centered by described M scheduling reference resources piece.
With the base station of the 1st scheduling frequency range as the residential quarter of edge customer scheduling frequency range, according to the variation of this Cell Edge User business load or the change width of the 2nd scheduling frequency range, be end points is dynamically adjusted described the 1st scheduling frequency range at the other end width with the 1st scheduling reference resources piece.
With the base station of N scheduling frequency range as the residential quarter of edge customer scheduling frequency range, according to the variation of this Cell Edge User business load or the change width of N-1 scheduling frequency range, be end points is dynamically adjusted described N scheduling frequency range at the other end width with N scheduling reference resources piece.
Adopt present embodiment long evolving system, dispatch frequency range as the residential quarter of edge customer scheduling frequency range with the M that is positioned at the frequency band middle part, its edge customer scheduling frequency range can dynamically be adjusted along with the change width of neighbor cell edge customer scheduling frequency range in the position of upstream band; Be positioned at the 1st scheduling frequency range of upstream band low frequency end, perhaps dispatch frequency range as the residential quarter of edge customer scheduling frequency range for the N that is positioned at the upstream band front end, its edge customer scheduling frequency range is when dynamically adjusting width, and its this end of scheduling reference resources piece keeps fixing; Thereby, the resource that can coordinate flexibly between each residential quarter is distributed, can guarantee the 1st or the scheduling reference resources piece of N scheduling frequency range can not produce resource fragmentation, effectively reduce the minizone co-channel interference, and then can improve the interference coordination effect, improve the upstream band resource utilization.
More than upstream band dynamic allocation of resources method that the embodiment of the invention is provided and base station and system be described in detail, having used specific case herein sets forth principle of the present invention and execution mode, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof, should not be construed as limitation of the present invention.
Claims (9)
1. a upstream band dynamic allocation of resources method is characterized in that, comprising:
In advance upstream band is divided into N nonoverlapping scheduling frequency range, N is not less than 3 integer, and wherein, the 1st scheduling frequency range is positioned at the low frequency end of described upstream band, and N scheduling frequency range is positioned at the front end of described upstream band;
As the edge customer scheduling frequency range of home cell, and the edge customer scheduling frequency range of described home cell and the edge customer scheduling frequency range of neighbor cell are respectively different scheduling frequency ranges with any scheduling frequency range in described N nonoverlapping scheduling frequency range;
If the edge customer scheduling frequency range of described home cell is M scheduling frequency range, M is greater than 1 and less than the integer of N, then dynamically adjust M scheduling reference resources piece in the position of described upstream band according to the change width of M-1 and M+1 scheduling frequency range, described M scheduling frequency range is centered by described M scheduling reference resources piece;
If the edge customer scheduling frequency range of described home cell is the 1st scheduling frequency range, according to the variation of home cell edge customer business load or the change width of the 2nd scheduling frequency range, be end points is dynamically adjusted described the 1st scheduling frequency range at the other end width with the 1st scheduling reference resources piece then;
If the edge customer scheduling frequency range of described home cell is N scheduling frequency range, according to the variation of home cell edge customer business load or the change width of N-1 scheduling frequency range, be end points is dynamically adjusted described N scheduling frequency range at the other end width with N scheduling reference resources piece then.
2. method according to claim 1 is characterized in that:
Described the 1st scheduling reference resources piece is that described upstream band is from the 1st Resource Block of low frequency, described N scheduling reference resources piece is that described upstream band is from the 1st Resource Block of high frequency, the Resource Block of described M scheduling reference resources piece to be that described upstream band is upper be set to (A+B)/2, wherein A is that described M-1 scheduling frequency range is from the position of first Resource Block of high frequency, B is that described M+1 dispatches frequency range from the position of first Resource Block of low frequency, and described (A+B)/2 round downwards.
3. method according to claim 1 and 2 is characterized in that, described change width according to M-1 and M+1 scheduling frequency range is dynamically adjusted M scheduling reference resources piece and also comprised before the position of described upstream band:
Receive the Indication message of the base station transmission of described neighbor cell, described Indication message carries the width adjustment information of the edge customer scheduling frequency range of described neighbor cell.
4. method according to claim 1 and 2 is characterized in that, described is that end points also comprises after the width of described the 1st scheduling frequency range of the dynamic adjustment of the other end with the 1st scheduling reference resources piece:
Send Indication message to the base station of described neighbor cell, described Indication message carries the width adjustment information of described the 1st scheduling frequency range.
5. method according to claim 1 and 2 is characterized in that, described is that end points also comprises after the width of the described N scheduling of the dynamic adjustment of other end frequency range with N scheduling reference resources piece:
Send Indication message to the base station of described neighbor cell, described Indication message carries the width adjustment information of described N scheduling frequency range.
6. a base station is characterized in that, comprising:
Scheduling frequency range dispensing unit, be used in advance upstream band being divided into N nonoverlapping scheduling frequency range, N is not less than 3 integer, wherein, the 1st scheduling frequency range is positioned at the low frequency end of described upstream band, N scheduling frequency range is positioned at the front end of described upstream band, as the edge customer scheduling frequency range of home cell, and the edge customer scheduling frequency range of described home cell and the edge customer scheduling frequency range of neighbor cell are respectively different scheduling frequency ranges with any scheduling frequency range in described N nonoverlapping scheduling frequency range;
Dynamic adjustment unit, be used for if the edge customer scheduling frequency range of described scheduling frequency range dispensing unit configuration home cell is M scheduling frequency range, M is greater than 1 and less than the integer of N, then dynamically adjust M scheduling reference resources piece in the position of described upstream band according to the change width of M-1 and M+1 scheduling frequency range, described M scheduling frequency range is centered by described M scheduling reference resources piece; If the edge customer scheduling frequency range of described scheduling frequency range dispensing unit configuration home cell is the 1st scheduling frequency range, according to the variation of home cell edge customer business load or the change width of the 2nd scheduling frequency range, be end points is dynamically adjusted described the 1st scheduling frequency range at the other end width with the 1st scheduling reference resources piece then; If the edge customer scheduling frequency range of described scheduling frequency range dispensing unit configuration home cell is N scheduling frequency range, according to the variation of home cell edge customer business load or the change width of N-1 scheduling frequency range, be end points is dynamically adjusted described N scheduling frequency range at the other end width with N scheduling reference resources piece then.
7. base station according to claim 6 is characterized in that:
Described scheduling frequency range dispensing unit, also be used for definition scheduling reference resources piece, wherein, described the 1st scheduling reference resources piece is that described upstream band is from the 1st Resource Block of low frequency, described N scheduling reference resources piece is that described upstream band is from the 1st Resource Block of high frequency, the Resource Block of described M scheduling reference resources piece to be that described upstream band is upper be set to (A+B)/2, wherein A is that described M-1 scheduling frequency range is from the position of first Resource Block of high frequency, B is that described M+1 dispatches frequency range from the position of first Resource Block of low frequency, and described (A+B)/2 round downwards.
8. according to claim 6 or 7 described base stations, it is characterized in that, also comprise:
Receiving element, for the Indication message that the base station that receives described neighbor cell sends, described Indication message carries the width adjustment information of the edge customer scheduling frequency range of described neighbor cell.
9. according to claim 6 or 7 described base stations, it is characterized in that, also comprise:
Transmitting element be used for to send Indication message to the base station of described neighbor cell, and described Indication message carries the described the 1st or the width adjustment information of N scheduling frequency range.
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| CN102790739B (en) * | 2011-05-19 | 2016-12-07 | 北京邮电大学 | The up coordinated dispatching method of multi-plot joint and base station |
| CN102726085A (en) * | 2011-06-28 | 2012-10-10 | 华为技术有限公司 | Method, processor and base station for frequency band resource allocation |
| CN103338455B (en) * | 2013-06-07 | 2017-06-27 | 华为技术有限公司 | Communication resource allocation method, system, terminal and network side equipment |
| WO2015035588A1 (en) * | 2013-09-12 | 2015-03-19 | 华为技术有限公司 | Information obtaining method, terminal, base station and system |
| CN105578473A (en) * | 2014-10-13 | 2016-05-11 | 中兴通讯股份有限公司 | Frequency band allocation method and frequency band allocation device |
| CN110537345B (en) | 2017-05-05 | 2022-08-09 | 苹果公司 | An apparatus configured for use in a user equipment |
| CN107241147B (en) * | 2017-07-06 | 2019-08-06 | Oppo广东移动通信有限公司 | Radio frequency interference processing method, device, storage medium and terminal |
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