CN101945482B - Resource allocation method for coordinated multiple point (CoMP) mode and base station - Google Patents

Resource allocation method for coordinated multiple point (CoMP) mode and base station Download PDF

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CN101945482B
CN101945482B CN2010102923380A CN201010292338A CN101945482B CN 101945482 B CN101945482 B CN 101945482B CN 2010102923380 A CN2010102923380 A CN 2010102923380A CN 201010292338 A CN201010292338 A CN 201010292338A CN 101945482 B CN101945482 B CN 101945482B
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CN101945482A (en
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郭彩丽
卞宏梁
冯春燕
冯淑兰
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Yongtai County State owned asset management company
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Huawei Technologies Co Ltd
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Abstract

The invention discloses a resource allocation method for a coordinated multiple point (CoMP) mode and a base station, belonging to the communication technical field. The method comprises the following steps: receiving measurement information of various user equipment (UE) for which resources are to be allocated in an overlay cell; determining the optional CoMP modes on available time-frequency blocks of the UE and corresponding data rate and degree according to the measurement information; and carrying out resource allocation for the UE according to the optional CoMP mode on the available time-frequency blocks of the UE and the corresponding data rate and the degree. The invention further discloses a base station. The invention solves the problem of allocating time-frequency resources and the CoMP mode for users, and can meet the data rate requirement for each user maximally and maximize system optimization objectives. When the amount of the available time-frequency blocks is obviously less than that of the UE, performances are greatly improved.

Description

A kind of resource allocation methods and base station that is used for multipoint cooperative CoMP mode
Technical field
The present invention relates to communication technical field, particularly a kind of resource allocation methods and base station that is used for CoMP (Coordinative Multiple Point, multipoint cooperative) mode.
Background technology
Modern communication system; For example in LTE-A (Long Term Evolution Advanced, the further Long Term Evolution) system, the communication process of edge customer and Serving cell receives the serious interference of neighbor cell; And can not satisfy the telex network needs; In order to address this problem, the cooperative multipoint transmission technology of (Coordinated Multiple Point transmission and reception is called for short CoMP) has been proposed; Being cooperation each other between each neighbor cell, is a terminal UE (User Equipment) or a plurality of UE service jointly.
The CoMP mode that LTE-A supports mainly contains: CBF (Coordinative Beam Form; Collaborative beam forming), Coherent JP (Coherent Join Process; Relevant Combined Treatment) and Non-Coherent JP (Non-Coherent Join Process, irrelevant Combined Treatment).Different CoMP modes are different with lifting degree to user data rate to the situation that takies of running time-frequency resource.
In realizing process of the present invention; The inventor finds that there is following problem at least in prior art: neighbor cell has the public available time-frequency piece of multistage at overlapping region; If in this overlapping region, there are a plurality of users need carry out CoMP simultaneously, how to select the running time-frequency resource of CoMP for these users' terminal just becomes a problem.
Summary of the invention
In order to select suitable time-frequency piece and CoMP mode for the multi-user, satisfy each user's data rate requirement, the embodiment of the invention provides a kind of resource allocation methods and base station that is used for multipoint cooperative (CoMP) mode.
The resource allocation methods of the said CoMP of being used for mode comprises: the metrical information that receives user equipment (UE) in the overlapping region of a plurality of sub-districts; According to the metrical information of said UE, confirm said UE each optional CoMP mode on each optional time-frequency piece; Confirm data rate and degree when said UE adopts said each optional CoMP mode on said each optional time-frequency piece; According to said UE adopt said each optional CoMP mode on said each optional time-frequency piece, data rate and degree when on said each optional time-frequency piece, adopting said each optional CoMP mode, for said UE carries out resource allocation;
Wherein, said metrical information according to said UE, confirm that said UE each optional CoMP mode on each optional time-frequency piece comprises:
The signal that send on the downlink channel response information on each available time-frequency piece of this UE, each sub-district each available time-frequency piece at this UE each sub-district that comprises in the metrical information according to said UE and under said each optional CoMP mode each sub-district signal transmitted to this UE effect, the data rate when calculating said UE and on said each available time-frequency piece, adopting said each available CoMP mode;
In the data-rate requirements scope of data rate when if said UE adopts an available CoMP mode on an available time-frequency piece, confirm that then the said CoMP mode of employing is the optional CoMP mode that adopts on the optional time-frequency piece of said UE on the said available time-frequency piece at this UE.
The embodiment of the invention also provides a kind of base station, and this base station comprises: this base station comprises: receiver module, optional CoMP mode determination module, degree determination module and distribution module; Wherein,
Receiver module is used to receive the metrical information of user equipment (UE) in the overlapping region of a plurality of sub-districts;
Optional CoMP mode determination module is used for the metrical information according to said UE, confirms said UE each optional CoMP mode on each optional time-frequency piece;
The degree determination module is confirmed data rate and degree when said UE adopts said each optional CoMP mode on said each optional time-frequency piece;
Distribution module, be used for according to said UE adopt said each optional CoMP mode on said each optional time-frequency piece, data rate and degree when on said each optional time-frequency piece, adopting said each optional CoMP mode, for said UE carries out resource allocation;
Wherein, said optional CoMP mode determination module comprises:
Computing unit; The signal that is used for each sub-district that the metrical information according to said UE comprises on the downlink channel response information on each available time-frequency piece of this UE, each sub-district each available time-frequency piece, sending at this UE and under said each optional CoMP mode each sub-district signal transmitted to this UE effect, the data rate when calculating said UE and on said each available time-frequency piece, adopting said each available CoMP mode;
Confirm the unit; Be used for if in the data-rate requirements scope of data rate when said UE adopts an available CoMP mode on an available time-frequency piece, confirm that then the said CoMP mode of employing is the optional CoMP mode that adopts on the optional time-frequency piece of said UE on the said available time-frequency piece at this UE.
The beneficial effect that the technical scheme that the embodiment of the invention provides is brought is: through a kind of resource allocation methods and base station that is used for multipoint cooperative CoMP mode is provided; Think that the user distributes running time-frequency resource and CoMP mode, can satisfy each user's data rate requirement to greatest extent.
Description of drawings
A kind of schematic flow sheet that be used for the resource allocation methods of multipoint cooperative (CoMP) mode of Fig. 1 for providing in the embodiment of the invention 1;
A kind of schematic flow sheet that be used for the resource allocation methods of multipoint cooperative (CoMP) mode of Fig. 2 for providing in the embodiment of the invention 2;
Fig. 3 is the structural representation of a kind of base station of providing in the embodiment of the invention 3;
Fig. 4 is the structural representation of the optional CoMP mode determination module in the base station of the embodiment of the invention 3;
Fig. 5 is the structural representation of the degree determination module in the base station of the embodiment of the invention 3;
Fig. 6 is the structural representation of the distribution module in the base station of the embodiment of the invention 3;
A kind of model sketch map that be used for the resource allocation methods of multipoint cooperative CoMP mode of Fig. 7 for providing in the embodiment of the invention 3.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
Embodiment 1
A kind of resource allocation methods that is used for multipoint cooperative CoMP mode, referring to Fig. 1, this method may further comprise the steps:
101: the metrical information that receives user equipment (UE) in the overlapping region of a plurality of sub-districts;
102:, confirm said UE each optional CoMP mode on each optional time-frequency piece according to the metrical information of said UE;
103: confirm data rate and degree when said UE adopts said each optional CoMP mode on said each optional time-frequency piece.
104: according to said UE adopt said each optional CoMP mode on said each optional time-frequency piece, data rate and degree when on said each optional time-frequency piece, adopting said each optional CoMP mode, for said UE carries out resource allocation.
The beneficial effect that the technical scheme that the embodiment of the invention provides is brought is: the beneficial effect that the technical scheme that the embodiment of the invention provides is brought is: through a kind of resource allocation methods and base station that is used for multipoint cooperative CoMP mode is provided; Think that the user distributes running time-frequency resource and CoMP mode, can satisfy each user's data rate requirement to greatest extent.
Embodiment 2
Referring to Fig. 2; The embodiment of the invention provides a kind of resource allocation methods that is used for multipoint cooperative CoMP mode; In the present embodiment; I user equipment (UE) (Serving cell of this i UE is sub-district 1 or sub-district 2) with the overlapping region of two sub-districts (sub-district 1 with sub-district 2) is example, is this i optional time-frequency piece and the optional CoMP mode of UE distribution, and wherein i is the number of the subscriber equipment (UE) of overlapping region.
Step 201: the metrical information that receives the user equipment (UE) of each resource to be allocated in the overlay cells:
Serving cell sends to time-frequency position, bandwidth and the Serving cell transmission power information on these time-frequency pieces of the available time-frequency piece that can be used for the CoMP mode in the overlapping region UE that belongs to this Serving cell of overlapping region; Promptly; Sub-district 1 sends to the UE that belongs to sub-district 1 with above-mentioned information, and sub-district 2 sends to above-mentioned information the UE that belongs to sub-district 2.
After each UE in the overlapping region receives above-mentioned information; Measure information such as downlink channel response and noise power on the corresponding time-frequency piece; And these metrical informations are reported the Serving cell to separately; Present embodiment is not done qualification to the content of metrical information, and Serving cell receives the metrical information of UE separately.
Step 202:, confirm said UE each optional CoMP mode on each optional time-frequency piece according to the metrical information of said UE;
The signal that send on the downlink channel response information on each available time-frequency piece of this UE, each sub-district each available time-frequency piece at this UE each sub-district that comprises in the metrical information according to said UE and under said each optional CoMP mode each sub-district signal transmitted to each UE effect, the data rate when calculating said UE and on said each available time-frequency piece, adopting said each available CoMP mode;
In the data-rate requirements scope of data rate at this UE when if said UE adopts an available CoMP mode on an available time-frequency piece, then confirming to adopt on the said available time-frequency piece said CoMP mode is the optional CoMP mode of employing on the optional time-frequency piece of said UE.In the embodiments of the invention; Said " available time-frequency piece " and " available CoMP mode " refer to candidate's time-frequency piece and the CoMP mode of a UE; These resources differ and satisfy the demand of UE surely; It will become the optional resource of UE when these resources can satisfy the UE demand, and promptly UE can select to use these optional resources to carry out work.
Still with the above-mentioned example that is exemplified as; Sub-district 1 is according to the metrical information that each UE sent that belongs to sub-district 1 that receives (this metrical information comprises the useful signal that sends on the available time-frequency piece of UE of each resource to be allocated that each UE is belonging to sub-district 1 in the downlink channel response information on each available time-frequency piece, each sub-district); And (for example according to the effect of 2 pairs of sub-districts 1, sub-district under the various optional CoMP modes; In such cases; Sub-district 2 is as cooperation cell or interfered cell, because the signal that cooperation cell and interfered cell are launched is different to the effect of the reception signal of the UE that belongs to sub-district 1), used computing formula during through following detailed description; The UE that can calculate each resource to be allocated that belongs to sub-district 1 is adopting under every kind of optional CoMP mode the data rate that can reach on each available time-frequency piece; To belong to the data rate that the UE of each resource to be allocated of sub-district 1 adopts every kind of CoMP mode to reach on each available time-frequency piece compares with the data-rate requirements scope of the UE of said resource to be allocated; If said data rate is included in the data-rate requirements scope of UE of said resource to be allocated, the optional CoMP mode of the UE that then said CoMP mode is said resource to be allocated on said available time-frequency piece.
To all available time-frequency piece of each UE traversal with in the optional CoMP mode of this available time-frequency piece, the optional CoMP mode on each available time-frequency piece is determined for each UE that belongs to sub-district 1 in sub-district 1.
Similar with the aforementioned calculation process, the optional CoMP mode on each available time-frequency piece is also determined for each UE that belongs to sub-district 2 in sub-district 2.
To specifically describe sub-district 1 below and be respectively the process that each UE that belongs to this sub-district determines the optional CoMP mode on each available time-frequency piece with sub-district 2:
For the ease of describing, the optional CoMP mode of present embodiment is explained as follows:
The optional CoMP mode of present embodiment comprises collaborative beam forming CBF, relevant Combined Treatment Coherent JP and irrelevant Combined Treatment Non-Coherent JP.
With the definition of CoMP mode coding rule as follows:
Suppose that j available time-frequency piece is SP (j), then on SP (j), carrying out CBF can be expressed as: CoMP (x), wherein x=(j-1) * 3+1;
On SP (j), carrying out Coherent JP can be expressed as: CoMP (x), wherein x=(j-1) * 3+2;
On SP (j), carrying out Non-Coherent JP can be expressed as: CoMP (x), wherein x=j*3.
The Serving cell of i user equipment (UE) (i) is set at eNB (k) (k is the numbering of the sub-district of CoMP participating mode, and be example with two cell cooperatives, and then k is 1 or 2) here;
The metrical information of i the UE that belongs to eNB (k) (being expressed as UE (i)) that service cell eNB (k) receives has comprised the downlink channel response H of UE (i) in eNB (k), on the j individual available time-frequency piece J, k, i, (k is 1 and/or 2) and the noise power σ on each time-frequency piece 2 I, j
Be specifically described as the detailed process that UE in the overlay cells confirms various optional CoMP modes below respectively:
A) confirm that can UE (i) carry out the CBF mode on available time-frequency piece SP (j)
The service cell eNB (k) of all supposing UE (i) in the example below is sub-district 1, and promptly k=1 is under the CBF mode in optional CoMP mode, and the downstream signal that send on identical time-frequency piece sub-district 2 is to disturb to UE (i).
Utilize formula (1), to go up the downlink channel response H of sub-district 1 to UE (i) at time-frequency piece SP (j) J, 1, iCarrying out SVD decomposes.
H j，1，i＝UΛV H (1)
In the formula, H J, 1, iBe the N*M matrix, U and V are respectively the unitary matrice of N*N and M*M, and Λ is the N*M matrix, and its diagonal entry is non-negative real number, and off diagonal element is 0, and the diagonal entry of Λ is the H that arranges from big to small from top to bottom J, 1, iSingular value.The matrix V that obtains like this is H J, 1, iCorresponding linear predictive coding matrix V J, 1, iBe that UE (i) selects the column vector corresponding with maximum singular value among the V, as it precoding vector U (j, 1, i).At the whole embodiment of the present invention, the variable that the letter in expression formula bracket and the subscript of expression formula all are used to express this expression formula, the two does not have essence difference.For example, H J, 1, iWith H (j, 1, the implication of i) expressing is identical.
Utilize formula (2), the Signal to Interference plus Noise Ratio SINR of the useful signal that send the sub-district 1 of calculating UE (i) demodulation output J, 1, i
SINR i , x = SINR j , 1 , i = | U j , 1 , i H H j , 1 , i H H j , 1 , i U j , 1 , i | P 1 , j | U j , 1 , i H H j , 1 , i H H j , 2 , i U j , 2 , i * | P 2 , j + σ i , j 2 - - - ( 2 )
Because sub-district 1 is the Serving cell of UE (i), the downstream signal that send on identical time-frequency piece sub-district 2 produces interference effect to UE (i), so UE (i) is at total Signal to Interference plus Noise Ratio SINR of the useful signal of identical time-frequency piece I, xWith the Signal to Interference plus Noise Ratio SINR of sub-district 1 at the useful signal of identical time-frequency piece J, 1, iEquate.
In the formula, molecule is the available signal power that send the sub-district that receives of UE (i) 1, first of denominator
Figure GSB00000886272900072
For hypothesis 2 has user I in the sub-district *When also using SP (j) to carry out CBF, the interference power that downstream signal causes UE (i), second of denominator are sent in sub-district 2
Figure GSB00000886272900073
The noise power of locating at SP (j) for UE (i).
Utilize formula (3), can obtain the useful signal data rate R that send sub-district 1 J, 1, i, under this sight, suppose that the interference that cooperation cell 2 causes under the ideal situation is zero, like this, the total data rate of useful signal
CoR I, xWith the data rate R of sub-district 1 at identical time-frequency piece J, 1, iEquate.
CoR i , x = R j , 1 , i = B j * log ( 1 + SINR j , 1 , i ) - - - ( 3 )
Wherein B (j) is the bandwidth of j available time-frequency piece SP (j), x=(j-1) * 3+1.
If CoR I, xIn the data-rate requirements scope R (i) of UE (i) (the data-rate requirements scope of UE (i) is a predetermined value), then UE (i) is CBF in the optional CoMP mode of time-frequency piece SP (j), that is, and and CoMP I, x=1, (wherein x=(j-1) * 3+1).
If CoR I, xIn the data-rate requirements scope R (i) of UE (i), then UE (i) can not select the CBF mode, that is, and and CoMP I, x=0, wherein (x=(j-1) * 3+1).
B) confirm that can UE (i) carry out Coherent JP on available time-frequency piece SP (j)
Under this mode, sub-district 1 all is UE (i) service with sub-district 2, and sub-district 1 data identical with sub-district 2 synchronized transmissions are given UE (i), that is, the signal of two sub-district transmissions merges at UE (i) end.
Utilize above-mentioned formula (1), on time-frequency piece SP (j), the downlink channel response H of sub-district 1 and sub-district 2 to UE (i) J, 1, iAnd H J, 2, iCarry out SVD respectively and decompose, obtain the precoding vector U that should use sub-district 1 J, 1, iThe precoding vector U that should use with sub-district 2 J, 2, i
Utilize formula (5), calculate total Signal to Interference plus Noise Ratio SINR of the useful signal of UE (i) I, x, (wherein x=(j-1) * 3+2).
SINR i , x = | U 1 H H j , 1 , i H H j , 1 , i U 1 | P i , j + | U 2 H H j , 2 , i H H j , 2 , i U 2 | P 2 , j σ i , j 2 - - - ( 5 )
In the formula, the molecule available signal power sum that to be the sub-district that receives of UE (i) 1 send with sub-district 2, denominator is the noise power that SP (j) locates at UE (i),
Because Coherent JP regulation can only be distributed to a user, so the same frequency that does not exist other user to cause disturbs.
Utilize formula (6), can calculate the data rate CoR that UE (i) adopts Coherent JP mode to reach I, x:
CoR i，x＝B j*log(1+SINR i，x) (6)
Wherein B (j) is the bandwidth of j available time-frequency piece SP (j), x=(j-1) * 3+2.
If CoR I, xIn the data-rate requirements scope R (i) of UE (i), then the optional CoMP mode of UE (i) on time-frequency piece SP (j) is Coherent JP, that is, and and CoMP I, x=1, (wherein x=(j-1) * 3+2).
If CoR I, xIn the data-rate requirements scope R (i) of UE (i), then UE (i) can not select Coherent JP mode, CoMP on time-frequency piece SP (j) I, x=0 (wherein x=(j-1) * 3+2).
C) confirm that can UE (i) carry out Non-Coherent JP mode on available time-frequency piece SP (j)
Under this mode, send different data to UE (i) for 2, two sub-districts in sub-district 1 and sub-district that have of UE (i) (Serving cell is sub-district 1) service, two paths of signals has the phase mutual interference.
At first, respectively on time-frequency piece SP (j), the downlink channel response H of sub-district 1 and sub-district 2 to UE (i) J, 1, iAnd H J, 2, iCarry out SVD and decompose, obtain under this CoMP mode the precoding vector U that sub-district 1 should be used J, 1, iAnd the sub-district 2 precoding vector U that should use J, 2, i
Under this mode, it is demodulation respectively that the signal of two sub-district transmissions is held at UE (i), utilizes formula (7) and formula (8) respectively, calculates the Signal to Interference plus Noise Ratio SINR of two paths of signals demodulation output J, 1, iAnd SINR J, 2, i
SINR j , 1 , i = | U 1 H H j , 1 , i H H j , 1 , i U 1 | P 1 , j | U 1 H H j , 1 , i H H j , 2 , i U 2 | P 2 , j + σ i , j 2 - - - ( 7 )
SINR j , 2 , i = | U 2 H H j , 2 , i H H j , 2 , i U 2 | P 2 j | U 2 H H j , 2 , i H H j , 1 , i U 1 | P 1 , j + σ i , j 2 - - - ( 8 )
In the formula (7); Molecule is the available signal power that send the sub-district that receives of UE (i) 1; The interference power that the signal that the signal that denominator first
Figure GSB00000886272900093
sends for sub-district 2 sends demodulation sub-district 1 causes, the noise power that denominator second
Figure GSB00000886272900094
is located at UE (i) for SP (j).The implication and the formula (7) of variable are similar in the formula (8).
Utilize formula (9) and formula formula (10) respectively, calculate the data rate Rj of two paths of signals, 1, i and Rj, 2, i
R j，1，i＝B j*log(1+SINR j，i，i) (9)
R j，2，i＝B j*log(1+SINR j，2，i) (10)
Wherein B (j) is the bandwidth of j available time-frequency piece SP (j).
Utilize formula (11), calculate the data rate CoR that UE (i) adopts this CoMP mode to reach I, x, CoR I, xBe two paths of signals data rate sum:
CoR i，x＝R j，1，i+R j，2，i＝B j*[log(1+SINR j，1，i)+log(1+SINR j，2，i)] (11)
Wherein B (j) is the bandwidth of j available time-frequency piece SP (j), (wherein x=j*3).
If CoR I, xIn the data rate R of UE (i) (i) range of needs, the optional Non-CoherentJP mode of UE (i) then, that is, and CoMP I, x=1 (wherein x=j*3), the UE optional CoMP mode CoMP on available time-frequency piece SP (j) I, xPairing data rate is CoR I, x
If CoR I, xIn the data rate R of UE (i) (i) range of needs, then UE (i) can not select Non-Coherent JP mode, CoMP I, x=0 (wherein x=j*3).
Travel through all available time-frequency pieces and (promptly find the solution and obtain all CoMP in the optional CoMP mode of this available time-frequency piece I, xX=0 wherein, 1,2 ..., (J*L-1), J is the sum of available time-frequency piece, L is available CoMP mode, here, and L=3, obtaining that the said unallocated optional CoMP mode of UE on said available time-frequency piece of joining resource gather (is CoMP I, xAll x of=1).
Through above-mentioned steps, confirmed that for each UE of overlay cells the optional CoMP mode on the available time-frequency piece gathers.
Step 203: confirm the degree when said UE adopts said each optional CoMP mode on said each optional time-frequency piece;
If adopting said optional CoMP mode on the said optional time-frequency piece is collaborative beam forming CBF, the quantity that the degree that then said UE adopts optional CoMP mode on optional time-frequency piece be CBF is other UE of CBF for the optional CoMP mode that belongs to same sub-district with said UE and on identical optional time-frequency piece, adopt;
If adopt said optional CoMP mode to be relevant Combined Treatment CoherentJP on the said optional time-frequency piece, the degree that then said UE adopts optional CoMP mode on optional time-frequency piece be Coherent JP is and the said UE quantity that to have the optional CoMP mode that adopts on the identical optional time-frequency piece be other UE of Coherent JP;
If adopting said optional CoMP mode on the said optional time-frequency piece is irrelevant Combined Treatment Non-Coherent JP, the degree that then said UE adopts optional CoMP mode on optional time-frequency piece be Non-Coherent JP is and the said UE quantity that to have the optional CoMP mode that adopts on the identical optional time-frequency piece be other UE of Non-Coherent JP.
Accept top example, confirmed optional CoMP on the available time-frequency piece at the UE (i) that is the resource to be allocated of overlay cells I, xAfter the mode, for the UE of said each resource to be allocated has confirmed optional CoMP on the available time-frequency piece I, xThe degree of mode.
If optional CoMP mode is CBF on the available time-frequency piece of this UE, the degree that optional CoMP mode is CBF on the available time-frequency piece of this UE so is: belong to the quantity of the UE of other unallocated resource that optional CoMP mode is CBF on same sub-district and the identical available time-frequency piece with this UE.
If optional CoMP mode is relevant Combined Treatment Coherent JP or irrelevant Combined Treatment Non-Coherent JP on the available time-frequency piece of this UE, so on the available time-frequency piece of this UE optional CoMP mode for the degree of relevant Combined Treatment Coherent JP or irrelevant Combined Treatment Non-Coherent JP be respectively on this said available time-frequency piece optional CoMP mode for the quantity of the UE of other unallocated resource of relevant Combined Treatment Coherent JP or irrelevant Combined Treatment Non-Coherent JP with.
For the UE of said each resource to be allocated has confirmed the detailed process of carrying out resource allocation for the UE of said each resource to be allocated to be described below after the degree of optional CoMP (x) mode on the available time-frequency piece:
Step 204: according to said UE adopt said each optional CoMP mode on said each optional time-frequency piece, data rate and degree when on said each optional time-frequency piece, adopting said each optional CoMP mode, for said UE carries out resource allocation.
If having, the UE of unallocated resource adopts optional CoMP mode on the optional time-frequency piece; Then calculate the ratio that adopts the degree of said optional CoMP mode on the data rate that adopts optional CoMP mode on the optional time-frequency piece of UE of all unallocated resources and the said optional time-frequency piece, the optional CoMP mode on pairing optional time-frequency piece of maximum ratio and the said time-frequency piece is distributed to the UE of said maximum ratio correspondence;
Never deletion during the UE of Resources allocation gathers with said UE;
Upgrade on the optional time-frequency piece of UE of unallocated resource and adopt optional CoMP mode,
According to the UE of unallocated resource adopt said each optional CoMP mode on said each optional time-frequency piece, data rate and degree when on said each optional time-frequency piece, adopting said each optional CoMP mode, for the UE of said unallocated resource carries out resource allocation; Till the UE of unallocated resource does not have on the optional time-frequency piece the optional CoMP mode of employing or all UE distribute to adopt optional CoMP mode on the optional time-frequency piece.
With the top example that is exemplified as; UE to current all unallocated resources; Through the degree of optional CoMP mode on the data rate of optional CoMP mode on the available time-frequency piece of the UE of all unallocated resources and the said available time-frequency piece is done the ratio computing; Optional CoMP mode on the pairing available time-frequency piece of maximum ratio is distributed to the pairing UE of this maximum ratio, that is, this UE has been distributed the optional CoMP mode on available time-frequency piece and this available time-frequency piece.This UE is never deleted among the UE of Resources allocation.Owing to deleted the UE that has distributed resource, need utilize said method, recomputate the degree of optional CoMP mode on the available time-frequency piece of UE of these unallocated resources; Upgrade optional CoMP mode on the available time-frequency piece of resource UE to be allocated; Afterwards; Utilize identical method to carry out resource allocation, all be assigned with resource or do not had available time-frequency piece or optional CoMP mode to distribute to the UE of resource to be allocated up to all UE for the UE of the unallocated resource of remainder.
On the optional time-frequency piece that upgrades remaining resource UE to be allocated during optional CoMP mode; As the case may be, determine whether this optional CoMP mode on the optional time-frequency piece that has distributed is deleted the optional CoMP mode from the optional time-frequency piece of the resource UE to be allocated of remainder.
The optional time-frequency piece of said renewal resource UE to be allocated and corresponding C oMP mode specifically comprise:
If the CoMP mode that is assigned with is Coherent JP or Non-Coherent JP, optional time-frequency piece that then will distribute and corresponding C oMP mode are never deleted in optional time-frequency piece and the corresponding CoMP mode thereof of the UE of Resources allocation;
If the CoMP mode that is assigned with is CBF; And the UE of unallocated resource and the UE that is assigned with resource belong to same Serving cell, and the optional time-frequency piece that then will distribute and corresponding C oMP mode are deleted from the CoMP mode of the optional time-frequency piece of said unallocated resource UE and correspondence thereof;
If the CoMP mode that is assigned with is CBF; And the UE of unallocated resource and the UE that is assigned with resource do not belong to same Serving cell; Then judge whether to exist in and carry out the UE that CBF can satisfy jamming margin and satisfy the minimum data rate of self on the identical time-frequency piece; If exist, the optional time-frequency piece that then will distribute and corresponding C oMP mode are retained in the CoMP mode of optional time-frequency piece and correspondence thereof of said resource UE to be allocated; Otherwise, the optional time-frequency piece that has distributed and corresponding C oMP mode are deleted from the optional time-frequency piece of said resource UE to be allocated and corresponding CoMP mode thereof.
When on the optional time-frequency piece that upgrades remaining unallocated resource UE, adopting optional CoMP mode; This optional CoMP mode is deleted the optional CoMP mode from the optional time-frequency piece of the unallocated resource UE of remainder on the optional time-frequency piece that whether will distribute, needs to do further to judge:
If the CoMP mode that is assigned with is CBF:
When the UE that has only unallocated resource and the UE that is assigned with resource belong to same Serving cell; Just cannot CBF mode on the optional time-frequency piece that distribute and this time-frequency piece be distributed the UE of this unallocated resource; That is, the CBF mode on the optional time-frequency piece that has distributed and this time-frequency piece is never deleted in the CBF mode on this time-frequency piece of the UE of Resources allocation.
And when the UE of resource to be allocated and the UE that is assigned with resource belong to different Serving cell; Then utilize formula (4); Calculating is the UE of each resource to be allocated of sub-district 2 at Serving cell; If also on this time-frequency piece, adopt the CBF mode, the Serving cell (sub-district 1) under the UE of Resources allocation (supposing that Serving cell is sub-district 1) is to the jamming margin I of sub-district 2 J, 2, i,
Δ j，2，i＝SINR j，1，i-f -1(R imin) (4)
F wherein -1Expression is through the anti-SINR that asks of channel capacity
According to Δ J, 2, iCan obtain UE (i) jamming margin I to eNB2 under CoMP (x) mode J, 2, i
If the jamming margin of UE that calculates the 1 pair of sub-district 2, sub-district under the UE that has distributed the CBF mode satisfies the requirement of system (can by systemic presupposition); And the minimum data rate that satisfies the UE self of sub-district 2 requires (by systemic presupposition); Then can also CBF mode on this optional time-frequency piece that distribute be distributed in the UE of sub-district 2; Otherwise, cannot CBF mode on this optional time-frequency piece that distribute be distributed in the UE of sub-district 2.
If the CoMP mode that is assigned with is other modes:
Optional CoMP mode is never deleted in the optional CoMP mode on this optional time-frequency piece and this available time-frequency piece of the UE of Resources allocation on the optional time-frequency piece that then will distribute and this time-frequency piece.
Embodiment 3
Above-mentionedly, can accomplish the UE of resource to be allocated through colouring for distributing the step of optional CoMP mode on available time-frequency piece and this available time-frequency piece.
Referring to Fig. 7, optional CoMP mode on the available time-frequency piece of the UE of resource to be allocated is defined as CoMP I, x: the UE in the corresponding overlapping region of i wherein, with x mould 3, resulting quotient is the available time-frequency piece number of UE (i); And with x mould 3, the corresponding optional CoMP mode of resulting remainder, remainder is 1 corresponding CBF mode; Remainder is 2 corresponding Coherent JP modes, and remainder is 3 corresponding Non-Coherent JP modes, makes the corresponding Col (x) of x; That is, the corresponding a kind of color of each X is just with CoMP I, xCorrespond to Col I, x
In this example, suppose that there are 5 available time-frequency piece (time-frequency pieces 0,1 overlapping region; 2,3,4); Each time-frequency piece all has 3 kinds of optional CoMP modes, and so total 5*3=15 kind resource need be distributed to all UE in the overlapping region, for example; Assignable resource is when optional CoMP mode is CBF on the time-frequency piece 0, can be expressed as CoMP I, 1(because x removes 3 merchant is the number of time-frequency piece; The remainder of x mould 3 is optional CoMP; Remainder is 1 for the CBF mode, and remainder is 2 corresponding Coherent JP modes, and remainder is 0 corresponding Non-CoherentJP mode; So when assignable resource is the CBF mode on the available time-frequency piece 0, can calculate x=0*3+1=1).
In this example, suppose that there are 4 UE (UEs, UEt, UEm, UEn) overlapping region.The process of the coloring models of setting up these 4 UE is described below:
At first, with 4 summits (Vs, Vt, Vm, Vn) in the corresponding respectively one-tenth color-patch map of these 4 UE (UEs, UEt, UEm, the UEn) model, then for setting up information list in each summit.
All comprise summit itself in the information list on each summit in the summit respectively, and the Serving cell of each pairing UE in summit is documented in the information list on each summit;
With the available time-frequency piece of these 4 UE and the optional CoMP mode CoMP on this time-frequency piece I, xCorresponding become the summit manage to make do color Col I, x(wherein s, t, m, the n (having indicated each UE) among the corresponding Vs of i, Vt, Vm, the Vn).For example, be CoMP through calculating the assignable resource of UEs S, 1, CoMP S, 5And CoMP S, 9, the color of managing to make do that corresponds in the information list of summit Vs is: Col S, 1, Col S, 5And Col S, 9, the color of managing to make do in the information list of summit Vt is: Col T, 1, Col T, 5And Col T, 9, the color of managing to make do in the information list of summit Vm is: Col M, 1And Col M, 5, the color of managing to make do in the information list of summit Vn is: Col N, 1And Col N, 9
The original painted income a of the information list on each summit in this example I, x, be this UE data rate that this optional CoMP mode can reach on this available time-frequency piece.
Describe below and utilize colouring to calculate each to manage to make do the degree d of color I, x(to degree that should the pairing UE in summit this optional CoMP mode on this available time-frequency piece).
At first be described as the process of each the summit edged in this model:
With summit Vs is example, can know through the information list on this summit, and this summit has 3 kinds and manages to make do color Col S, 1, Col S, 5And Col S, 9, wherein each is managed to make do color, judging also has identical color in the information list whether other summit is arranged in this model, then can come to be these summit edgeds according to the pairing optional CoMP mode of this color.If summit Vi manages to make do color Col I, xCorresponding Coherent JP or Non-Coherent JP mode (is 2 or 0 with the remainder of x mould 3) are if then exist fixed point V I'(i ' comprise i) manage to make do Coherent JP or Non-Coherent JP mode, the i.e. Col of the corresponding same time-frequency piece of color I ', (x/3) * 3) or Col I ', (x/3*3+2), wherein (x/3) expression removes the merchant after 3 to x, and then the solid line with this color connects them.If manage to make do the corresponding CBF mode (is 1 with the remainder of x mould 3) of color; Judge then whether have the identical summit of color of managing to make do with Vs belongs to a Serving cell with Vs, if then the solid line with this color connects them; Otherwise, connect them with this dotted line of color of managing to make do.
In this model, for managing to make do color Cols, 1, owing to manage to make do color Col S, 1In 1 mould 3 surplus 1 (corresponding CBF mode), the information list of summit Vs, Vt, Vm and Vn all has this color of managing to make do, the edged process is specific as follows:
Serving cell in the information table of Vs and Vt identical (sub-district 1) is then with managing to make do color Col S, 1Solid line connect summit Vs and Vt.
Serving cell in the information table of Vs and Vm is different, then with managing to make do color Col S, 1Dotted line connect summit Vs and Vm.
Serving cell in the information table of Vs and Vn is different, then with managing to make do color Col S, 1Dotted line connect summit Vs and Vn.
Serving cell in the information table of Vt and Vm is different, then with managing to make do color Col S, 1Dotted line connect summit Vt and Vm.
Serving cell in the information table of Vt and Vn is different, then with managing to make do color Col S, 1Dotted line connect summit Vt and Vn.
Serving cell in the information table of Vm and Vn identical (sub-district 2) is then with managing to make do color Col S, 1Solid line connect the summit
For managing to make do color Col S, 5, owing to manage to make do color Col S, 5In 5 moulds 3 surplus the 2 Coherent JP modes of the 2nd time-frequency piece (corresponding), the information list of summit Vs, Vt and Vm all has this color of managing to make do, the edged process is following: respectively with managing to make do color Col S, 5Solid line connect summit Vs and Vt, Vs and Vm and Vt and Vm.
For managing to make do color Cols, 9, owing to manage to make do color Col S, 9In 9 moulds 3 surplus 0 (corresponding the 3rd time-frequency piece Non-Coherent JP mode); The information list of summit Vs, Vt and Vn all has this color of managing to make do; The edged process is following: with managing to make do color Cols, 9 solid line connects summit Vs and Vt, Vs and Vn and Vt and Vn respectively.
And every kind in the information list on each summit manages to make do the degree of color to manage to make do the real limit number of color for this that is connected with this summit in the model.Thus, every kind in the information list on each summit in this model manages to make do the degree of color to be:
Manage to make do color Col in the information list of Vs S, 1Degree be 1, manage to make do color Col S, 5Degree be 2, manage to make do color Col S, 9Degree be 2;
Manage to make do color Col in the information list of Vt S, 1Degree be 1, manage to make do color Col S, 5Degree be 2, manage to make do color Col S, 9Degree be 2;
Manage to make do color Col in the information list of Vm S, 1Degree be 1, manage to make do color Col S, 5Degree be 2;
Manage to make do color Col in the information list of Vn S, 1Degree be 1, manage to make do color Col S, 9Degree be 2.
Process for each vertex coloring in this coloring models is described below:
Initial 4 summit Vs, Vt, Vm and Vn are not by painted; At this moment; Information list through each summit can calculate every kind of each summit and manage to make do the painted income of color and the ratio of this degree of managing to make do color, supposes that in such cases, maximum ratio is that the color of managing to make do of Vs is Col S, 1Painted income and the ratio of this degree of managing to make do color, will manage to make do color this moment is Col S, 1Distribute to Vs, that is, carried out painted summit Vs.(because Col S, 1In 1 mould, 3 quotients be surplus 0,1 mould 31, that is, the CBF mode on the time-frequency piece 0 is distributed to the pairing UEs of Vs).Painted summit Vs is never deleted in the painted summit, because summit Vs is deleted, the empty limit and the real limit that are connected with summit Vs also will be deleted.
Owing to deleted the information list that summit Vs and the empty limit that is connected with summit Vs and real limit also will be upgraded remaining 3 summits by deletion:
Owing to will manage to make do color Col S, 1Distribute to summit Vs, in the information list of summit Vt, Vm and Vn, whether delete and manage to make do color Col S, 1Need to do to judge:
To manage to make do color Col S, 1Delete from having the information list on summit of same services sub-district with Vs; In such cases, with managing to make do color Col in the information list of summit Vt S, 1Deletion is not managed to make do color Col and do not delete in the information list of Vm and Vn S, 1
Again upgrade the information list on remaining 3 summits, that is, calculate every kind of degree of managing to make do color on remaining 3 summits; Similar with the colorize method that is Vs, be other vertex coloring, do not managed to make do color up to all summits in all by the information list on painted or remaining summit.
If all summits can both be painted, represent that then all users that optional CoMP mode is arranged can both carry out CoMP, can satisfy the demand of oneself, can make the system optimization target maximum again.If there have the residue summit not have to be painted, then corresponding user is current can not to carry out CoMP, needs to wait for certain hour.
This programme has solved the problem of distributing running time-frequency resource and CoMP mode for the user.Can satisfy each user's oneself data-rate requirements to greatest extent, can make the system optimization target maximum again.When available time-frequency number of blocks obviously is less than UE and counts, compare stochastic selection algorithm, the method that present embodiment provided obviously promotes performance.
Embodiment 4
Present embodiment provides a kind of base station.Participate in Fig. 3, this base station comprises: receiver module 300, optional CoMP mode determination module 310, degree determination module 320 and distribution module 330;
Wherein receiver module 300 is used to receive the metrical information of user equipment (UE) in the overlapping region of a plurality of sub-districts;
The metrical information that optional CoMP mode determination module 210 is used for according to said UE is confirmed said UE each optional CoMP mode on each optional time-frequency piece;
Degree determination module 220 is used for confirming data rate and the degree when said UE adopts said each optional CoMP mode on said each optional time-frequency piece;
Distribution module 230 be used for according to said UE adopt said each optional CoMP mode on said each optional time-frequency piece, data rate and degree when on said each optional time-frequency piece, adopting said each optional CoMP mode, for said UE carries out resource allocation.
Referring to Fig. 4, said optional CoMP mode determination module 310 specifically comprises: computing unit 311 and definite unit 312; Wherein
Computing unit 311; The signal that is used for each sub-district that the metrical information according to said UE comprises on the downlink channel response information on each available time-frequency piece of this UE, each sub-district each available time-frequency piece, sending at this UE and under said each optional CoMP mode each sub-district signal transmitted to each UE effect, the data rate when calculating said UE and on said each available time-frequency piece, adopting said each available CoMP mode;
Confirm unit 312; Be used in the data-rate requirements scope of data rate at this UE when if said UE adopts an available CoMP mode on an available time-frequency piece, then confirming to adopt on the said available time-frequency piece said CoMP mode is the optional CoMP mode of employing on the optional time-frequency piece of said UE.
Referring to Fig. 5, wherein said degree determination module 320 specifically comprises: beam shaping CBF degree computing unit 321, relevant Combined Treatment Coherent JP degree computing unit 322 and irrelevant Combined Treatment Non-Coherent JP degree computing unit 323;
Wherein beam shaping CBF degree computing unit 321; The said optional CoMP mode of employing is collaborative beam forming CBF on the said optional time-frequency piece if be used for calculating, the quantity that the degree that then said UE adopts optional CoMP mode on optional time-frequency piece be CBF is other UE of CBF for the optional CoMP mode that belongs to same sub-district with said UE and on identical optional time-frequency piece, adopt;
Relevant Combined Treatment Coherent JP degree computing unit 322; Adopt said optional CoMP mode to be relevant Combined Treatment Coherent JP on the said optional time-frequency piece if be used for calculating, the degree that then said UE adopts optional CoMP mode on optional time-frequency piece be Coherent JP is and the said UE quantity that to have the optional CoMP mode that adopts on the identical optional time-frequency piece be other UE of Coherent JP;
Irrelevant Combined Treatment Non-Coherent JP degree computing unit 323; To adopt said optional CoMP mode on the said optional time-frequency piece be irrelevant Combined Treatment Non-Coherent JP if be used for calculating, and the degree that then said UE adopts optional CoMP mode on optional time-frequency piece be Non-Coherent JP is and the said UE quantity that to have the optional CoMP mode that adopts on the identical optional time-frequency piece be other UE of Non-Coherent JP.
Referring to Fig. 6, wherein said distribution module 330 specifically comprises: allocation units 331; Wherein
Allocation units 331; The data rate when UE that is used for calculating respectively a plurality of unallocated resources adopts each optional CoMP mode on each optional time-frequency piece and the ratio of degree are distributed to the UE that has this maximum ratio with the optional CoMP mode on pairing optional time-frequency piece of maximum ratio and the said time-frequency piece.
The device that present embodiment provides belongs to same design with method embodiment, and its concrete implementation procedure sees method embodiment for details, repeats no more here.
This programme has solved the problem of distributing running time-frequency resource and CoMP mode for the user.Can satisfy each user's oneself data-rate requirements to greatest extent, can make the system optimization target maximum again.When available time-frequency number of blocks obviously was less than UE and counts, it was more obvious to compare the stochastic selection algorithm performance boost.
All or part of content in the technical scheme that above embodiment provides can realize that through software programming its software program is stored in the storage medium that can read, storage medium for example: the hard disk in the computer, CD or floppy disk.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. a resource allocation methods that is used for multipoint cooperative CoMP mode is characterized in that, this method comprises:
Receive the metrical information of user equipment (UE) in the overlapping region of a plurality of sub-districts;
According to the metrical information of said UE, confirm said UE each optional CoMP mode on each optional time-frequency piece;
Confirm data rate and degree when said UE adopts said each optional CoMP mode on said each optional time-frequency piece;
According to said UE adopt said each optional CoMP mode on said each optional time-frequency piece, data rate and degree when on said each optional time-frequency piece, adopting said each optional CoMP mode, for said UE carries out resource allocation;
Wherein, said metrical information according to said UE, confirm that said UE each optional CoMP mode on each optional time-frequency piece comprises:
The signal that send on the downlink channel response information on each available time-frequency piece of this UE, each sub-district each available time-frequency piece at this UE each sub-district that comprises in the metrical information according to said UE and under said each optional CoMP mode each sub-district signal transmitted to this UE effect, the data rate when calculating said UE and on said each available time-frequency piece, adopting said each available CoMP mode;
In the data-rate requirements scope of data rate when if said UE adopts an available CoMP mode on an available time-frequency piece, confirm that then the said CoMP mode of employing is the optional CoMP mode that adopts on the optional time-frequency piece of said UE on the said available time-frequency piece at this UE.
2. method according to claim 1 is characterized in that, said definite said UE adopts the degree of said each optional CoMP mode to comprise on said each optional time-frequency piece:
If adopting said optional CoMP mode on the said optional time-frequency piece is collaborative beam forming CBF, then said UE is adopting the degree of CBF to be on the optional time-frequency piece: belong to same sub-district with said UE and on identical optional time-frequency piece, adopt the quantity of other UE of CBF;
If adopt said optional CoMP mode to be relevant Combined Treatment CoherentJP on the said optional time-frequency piece, then said UE is adopting the degree of Coherent JP to be on the optional time-frequency piece: on identical optional time-frequency piece, adopt the quantity of other UE of Coherent JP with said UE;
If adopting said optional CoMP mode on the said optional time-frequency piece is irrelevant Combined Treatment Non-Coherent JP, then said UE is adopting the degree of Non-Coherent JP to be on the optional time-frequency piece: on identical optional time-frequency piece, adopt the quantity of other UE of Non-Coherent JP with said UE.
3. method according to claim 1; It is characterized in that; Said according to said UE adopt said each optional CoMP mode on said each optional time-frequency piece, data rate and degree when on said each optional time-frequency piece, adopting said each optional CoMP mode, comprise for said UE carries out resource allocation:
The data rate when UE that calculates a plurality of unallocated resources respectively adopts each optional CoMP mode on each optional time-frequency piece and the ratio of degree are distributed to the UE that has this maximum ratio with the optional CoMP mode on pairing optional time-frequency piece of maximum ratio and the said time-frequency piece.
4. method according to claim 3 is characterized in that, after the optional CoMP mode on said optional time-frequency piece and the said time-frequency piece was distributed to the UE that has maximum ratio, said method also comprised:
With deletion in the UE of the said Resources allocation UE set of Resources allocation never;
Upgrade the optional CoMP mode that adopts on the optional time-frequency piece of UE of unallocated resource,
According to the UE of unallocated resource adopt said each optional CoMP mode on said each optional time-frequency piece, data rate and degree when on said each optional time-frequency piece, adopting said each optional CoMP mode, the UE that continues as said unallocated resource carries out resource allocation.
5. method according to claim 4 is characterized in that, adopts optional CoMP mode to comprise on the optional time-frequency piece of the UE of the unallocated resource of said renewal:
If the CoMP mode that adopts on the time-frequency piece that has been assigned with is Coherent JP or Non-Coherent JP, delete in the optional CoMP mode that the said CoMP mode that adopts on the said time-frequency piece that then will be assigned with never adopts on the said optional time-frequency piece of the UE of Resources allocation;
If the CoMP mode that adopts on the time-frequency piece that has been assigned with is CBF; And the UE of unallocated resource and the UE that has been assigned with resource belong to same Serving cell, and the mode that adopts CBF on the time-frequency piece that then will be assigned with is deleted from the optional CoMP mode that the said optional time-frequency piece of said unallocated resource UE adopts;
If the CoMP mode that adopts on the time-frequency piece that has been assigned with is CBF; And the UE of unallocated resource and the UE that is assigned with resource do not belong to same Serving cell; Then judge whether to exist the UE that adopts CBF can satisfy jamming margin on the said time-frequency piece that has been assigned with and satisfy the minimum data rate of self; If exist, adopt the CBF mode to be retained in the optional CoMP mode that adopts on the optional time-frequency piece of said unallocated resource UE on the said time-frequency piece that then will be assigned with; Otherwise, the CBF mode that adopts on the said time-frequency piece that has been assigned with is deleted from the optional CoMP mode that the optional time-frequency piece of said unallocated resource UE adopts.
6. a base station is characterized in that, this base station comprises: receiver module, optional CoMP mode determination module, degree determination module and distribution module; Wherein,
Receiver module is used to receive the metrical information of user equipment (UE) in the overlapping region of a plurality of sub-districts;
Optional CoMP mode determination module is used for the metrical information according to said UE, confirms said UE each optional CoMP mode on each optional time-frequency piece;
The degree determination module is confirmed data rate and degree when said UE adopts said each optional CoMP mode on said each optional time-frequency piece;
Distribution module, be used for according to said UE adopt said each optional CoMP mode on said each optional time-frequency piece, data rate and degree when on said each optional time-frequency piece, adopting said each optional CoMP mode, for said UE carries out resource allocation;
Wherein, said optional CoMP mode determination module comprises:
Computing unit; The signal that is used for each sub-district that the metrical information according to said UE comprises on the downlink channel response information on each available time-frequency piece of this UE, each sub-district each available time-frequency piece, sending at this UE and under said each optional CoMP mode each sub-district signal transmitted to this UE effect, the data rate when calculating said UE and on said each available time-frequency piece, adopting said each available CoMP mode;
Confirm the unit; Be used for if in the data-rate requirements scope of data rate when said UE adopts an available CoMP mode on an available time-frequency piece, confirm that then the said CoMP mode of employing is the optional CoMP mode that adopts on the optional time-frequency piece of said UE on the said available time-frequency piece at this UE.
7. base station according to claim 6 is characterized in that, said degree determination module comprises:
Beam shaping CBF degree computing unit; If being used on the said optional time-frequency piece adopting said optional CoMP mode is collaborative beam forming CBF, confirm that then said UE is adopting the degree of CBF to be on the optional time-frequency piece: belong to same sub-district with said UE and on identical optional time-frequency piece, adopt the quantity of other UE of CBF;
Relevant Combined Treatment Coherent JP degree computing unit; Adopt said optional CoMP mode to be relevant Combined Treatment Coherent JP on the said optional time-frequency piece if be used for calculating, confirm that then said UE is adopting the degree of Coherent JP to be on the optional time-frequency piece: on identical optional time-frequency piece, adopt the quantity of other UE of Coherent JP with said UE;
Irrelevant Combined Treatment Non-Coherent JP degree computing unit; To adopt said optional CoMP mode on the said optional time-frequency piece be irrelevant Combined Treatment Non-Coherent JP if be used for calculating, and confirms that then said UE is adopting the degree of Non-Coherent JP to be on the optional time-frequency piece: on identical optional time-frequency piece, adopt the quantity of other UE of Non-Coherent JP with said UE.
8. base station according to claim 6 is characterized in that, said distribution module comprises:
Allocation units; The data rate when UE that is used for calculating respectively a plurality of unallocated resources adopts each optional CoMP mode on each optional time-frequency piece and the ratio of degree are distributed to the UE that has this maximum ratio with the optional CoMP mode on pairing optional time-frequency piece of maximum ratio and the said time-frequency piece.
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