CN102769861B - User attribute determining method, inter-cell interference coordination method and base station - Google Patents

Abstract

The invention provides a user attribute determining method, an inter-cell interference coordination method and a base station. The user attribute determining method comprises the following steps: acquiring a user j in a cell to be used as a transmission rate of a cell edge user (CEU) and a cell center user (CCU); if the user j has been determined as the CEU, directly acquiring the user j to be used as the transmission rate, and the j taking a positive integer; acquiring a maximum value of a utility function according to the transmission rate; and an attribute of the user j corresponding to the transmission rate, which corresponds to the maximum of the utility function, being used as the user attribute of the user j in the cell, and the user attribute being the CEU or the CCU. The user attribute determining method can avoid the problem in the prior art of the sharply declined performance of users in the process of inter-cell interference coordination due to errors in determination of the attributes of users.

Description

The decision method of user property, the method for Inter-Cell Interference Coordination and base station

Technical field

The embodiment of the present invention relates to the communication technology, particularly relates to a kind of decision method of user property, the method for Inter-Cell Interference Coordination and base station.

Background technology

At Long Term Evolution plan (Long Term Evolution, be called for short LTE) in system, intra-cell interference is negligible, but the presence of intercell interference that channeling brings is larger, it is the key factor of influential system performance, Inter-Cell Interference Coordination (Inter-Cell Interference Coordination is called for short ICIC) is one of Main Means promoting LTE system performance.

Current, soft-frequency reuse (Soft Frequency Reuse is called for short SFR) is one of effective technology coordinating LTE presence of intercell interference.Whole system bandwidth is divided into several part by SFR, the user that adjacent community uses the system bandwidth of different piece scheduling interference heavier, the heavier user of such neighbor cell interference has been staggered on dispatch frequency range, and the presence of intercell interference that these users are subject to can reduce.

The thought of SFR coordinates presence of intercell interference, intra-cell users is divided into central user (CellCenter User, be called for short CCU) and edge customer (Cell Edge User, be called for short CEU), edge customer adopts high power to dispatch on edge band, and central user adopts low-power to dispatch on center frequency-band.

User in community to be judged as central user according at what kind of principle and the performance of edge customer to SFR has a great impact, if it is not accurate enough that user property judges, such as a part is disturbed heavier user and is judged to central user, at this time, not only the interference that these users are subject to does not reduce, also its performance sharply can be declined because transmitting power reduces.

At present, the decision method for user property is, set user's Signal to Interference plus Noise Ratio (Signal toNoise Ratio is called for short SINR) threshold value, when the SINR value of user is greater than SINR threshold value, user is judged to central user; Otherwise user is judged to edge customer.

But the decision method of above-mentioned user property causes certain some community may occur more edge customer, and when edge band limited bandwidth, the performance of edge customer can be deteriorated.

Summary of the invention

For defect of the prior art, the invention provides a kind of decision method of user property, the method for Inter-Cell Interference Coordination and base station.

The decision method of the user property that the embodiment of the present invention provides, comprising:

User j in acquisition community is as transmission rate during edge customer CEU and central user CCU, and wherein, if user j is defined as edge customer, then directly obtain the transmission rate of user j as edge customer, j gets positive integer;

Obtain the maximum of utility function according to described transmission rate, using the user property of the attribute of the user j corresponding to the transmission rate corresponding to described utility function maximum as this user j in described community, described user property is edge customer or central user.

In a kind of possible implementation, the user j in acquisition community, described base station, as transmission rate during CEU and CCU, comprising:

Obtain user j in described community as Signal to Interference plus Noise Ratio during CEU and CCU; User j in described community is obtained as transmission rate during CEU and CCU according to described Signal to Interference plus Noise Ratio.

Further, the user j in described community is as follows as the obtain manner of Signal to Interference plus Noise Ratio during CEU and CCU:

${\mathrm{\γ}}_j=\frac{[{\mathrm{\δ}}_j{\mathrm{\α}}_i+(1-{\mathrm{\δ}}_j){\mathrm{\β}}_i]P_{\mathrm{ij}}}{\underset{l=1,l\≠i}{\overset{I}{\mathrm{\Σ}}}{P}_{\mathrm{lj}}+{\mathrm{\σ}}^2}$

User j in described community is as follows as the obtain manner of transmission rate during CEU and CCU:

$R_j^{\mathrm{CEU}}=\frac{{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CEU}}\right|}\log (1+{\mathrm{\γ}}_j),$ $R_j^{\mathrm{CCU}}=\frac{1-{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CCU}}\right|}\log (1+{\mathrm{\γ}}_j);$

Wherein, I is the quantity of community, gets positive integer; 1 for summation time change sequence number, get positive integer; α _ibe the power of the edge band of i-th community, β _ibe the power of the center frequency-band of i-th community; J is the number of users in each community, gets positive integer; P _ijfor the RSRP of the cell i that user j receives, σ ²for Background Noise Power;

δ _jbe used to refer to user j and be judged as edge customer or central user, value is 1 expression edge customer, and value is 0 expression central user; λ _ifor edge band accounts for the ratio of whole bandwidth of cell; S represents the set of the user in each community, for the set of edge customer, centered by the set of user;

γ _jfor the Signal to Interference plus Noise Ratio of user j; for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

In a kind of possible implementation, the decision method of above-mentioned user property also comprises: first utility function of searching according to cell capacity maximization principle, and described first utility function is $f(C_1,C_2,...,C_J)=\underset{j=1}{\overset{J}{\mathrm{\Σ}}}{C}_j,$ $C_j=\left\{\begin{array}{cc}{R}_j^{\mathrm{CEU}},& \mathrm{if}{\mathrm{\δ}}_j=0\\ R_j^{\mathrm{CCU}},& \mathrm{if}{\mathrm{\δ}}_j=0\end{array}\right.;$

Wherein, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

In the implementation that another kind is possible, the decision method of above-mentioned user property also comprises: second utility function of searching according to the user rate fairness doctrine, and described second utility function is:

$f(C_1,C_2,...,C_J)=\frac{1}{\underset{j=1}{\overset{J}{\mathrm{\Σ}}}\frac{1}{C_j}},$ $C_j=\left\{\begin{array}{cc}{R}_j^{\mathrm{CEU}},& \mathrm{if}{\mathrm{\δ}}_j=0\\ R_j^{\mathrm{CCU}},& \mathrm{if}{\mathrm{\δ}}_j=0\end{array}\right.;$

Wherein, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

In conjunction with above-mentioned possible implementation, the described maximum obtaining utility function according to described transmission rate, using the attribute of the user j corresponding to the transmission rate corresponding to described utility function maximum as the user property of this user j in described community, is specially:

Obtain described utility function f (C ₁, C ₂..., C _j) maximum and then $\{S_i^{\mathrm{CEU}},S_i^{\mathrm{CCU}}\}=\arg \underset{{\mathrm{\δ}}_1,{\mathrm{\δ}}_2,...,{\mathrm{\δ}}_J}{\max }\left\{f(C_1,C_2,...,C_J)\right\};$

Wherein, for the set of edge customer, centered by the set of user, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

On the other hand, the method for the Inter-Cell Interference Coordination that the embodiment of the present invention provides, comprising:

Base station is according to the priority of community inward flange user and central user, by Resource Block (the Resource Block corresponding to edge band, be called for short RB) distribute to described edge customer and described central user, and according to the priority of central user, RB corresponding to center frequency-band is distributed to described central user, and the decision method that wherein edge customer and central user are the above-mentioned user property of employing judges.

In a kind of possible implementation, described RB corresponding to edge band is distributed to described edge customer and described central user, is specially:

From the RB that the numbering corresponding to edge band is minimum, distribute toward backward described edge customer and described central user successively.

In a kind of possible implementation, described RB corresponding to center frequency-band is distributed to described central user, is specially:

From the RB corresponding to the center frequency-band that the RB maximum with the numbering corresponding to described edge band is adjacent, distribute toward backward described central user successively;

Number maximum RB if be dispatched in center frequency-band, but the RB corresponding to center frequency-band does not all distribute, then distribute to described central user successively numbering minimum RB from center frequency-band, until the RB corresponding to center frequency-band all distributes.

In conjunction with above-mentioned implementation, each RB to the allocation rule of edge customer and/or central user is:

Equitable proportion rule; Or

Strengthen equitable proportion rule; Or

Poll rule; Or

Max carrier to interference rule.

Again on the one hand, the decision maker of the user property that the embodiment of the present invention provides, comprising:

Acquiring unit, for obtaining user j in community as transmission rate during edge customer CEU and central user CCU, wherein, if user j is defined as edge customer, then directly obtain the transmission rate of user j as edge customer, j gets positive integer;

Identifying unit, for obtaining the maximum of utility function according to described transmission rate, using the user property of the attribute of the user j corresponding to the transmission rate corresponding to described utility function maximum as this user j in described community, described user property is edge customer or central user.

In a kind of possible implementation, described acquiring unit specifically for

Obtain user j in described community as Signal to Interference plus Noise Ratio during CEU and CCU; User j in described community is obtained as transmission rate during CEU and CCU according to described Signal to Interference plus Noise Ratio.

In the implementation that another kind is possible, described device also comprises: first searches unit, and for searching the first utility function according to cell capacity maximization principle, described first utility function is $f(C_1,C_2,...,C_J)=\underset{j=1}{\overset{J}{\mathrm{\Σ}}}{C}_j,$ $C_j=\left\{\begin{array}{cc}{R}_j^{\mathrm{CEU}},& \mathrm{if}{\mathrm{\δ}}_j=0\\ R_j^{\mathrm{CCU}},& \mathrm{if}{\mathrm{\δ}}_j=0\end{array}\right.;$

Wherein, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

In a kind of possible implementation, described device also comprises: second searches unit, and for searching the second utility function according to the user rate fairness doctrine, described second utility function is:

$f(C_1,C_2,...,C_J)=\frac{1}{\underset{j=1}{\overset{J}{\mathrm{\Σ}}}\frac{1}{C_j}},$ $C_j=\left\{\begin{array}{cc}{R}_j^{\mathrm{CEU}},& \mathrm{if}{\mathrm{\δ}}_j=0\\ R_j^{\mathrm{CCU}},& \mathrm{if}{\mathrm{\δ}}_j=0\end{array}\right.;$

Wherein, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

In conjunction with above-mentioned possible implementation, institute's identifying unit specifically for

Obtain described utility function f (C ₁, C ₂..., C _j) maximum and then $\{S_i^{\mathrm{CEU}},S_i^{\mathrm{CCU}}\}=\arg \underset{{\mathrm{\δ}}_1,{\mathrm{\δ}}_2,...,{\mathrm{\δ}}_J}{\max }\left\{f(C_1,C_2,...,C_J)\right\};$

Wherein, for the set of edge customer, centered by the set of user, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

Another aspect, the base station that the embodiment of the present invention provides, comprising:

Allocation units, for the priority according to community inward flange user and central user, Resource Block RB corresponding to edge band is distributed to described edge customer and described central user, and according to the priority of central user, the RB corresponding to center frequency-band is distributed to described central user; And

As above the decision maker of arbitrary described user property, for judging the user property of described intra-cell users, described user property is edge customer or central user.

In a kind of possible implementation, described allocation units specifically for

From the RB that the numbering corresponding to edge band is minimum, distribute toward backward described edge customer and described central user successively.

In a kind of possible implementation, described allocation units specifically for

From the RB corresponding to the center frequency-band that the RB maximum with the numbering corresponding to described edge band is adjacent, distribute toward backward described central user successively;

Number maximum RB if be dispatched in center frequency-band, but the RB corresponding to center frequency-band does not all distribute, then distribute to described central user successively numbering minimum RB from center frequency-band, until the RB corresponding to center frequency-band all distributes.

As shown from the above technical solution, the decision method of the user property of the embodiment of the present invention, the method for coordinating district interference and base station, by obtaining intra-cell users j as transmission rate during CEU and CCU, and then the maximum of utility function is obtained according to transmission rate, using the user property of attribute this user j in community of the user j corresponding to the transmission rate corresponding to described utility function maximum, can avoid thus causing due to user property misjudgment the problem that in community, in coordinates interference process, user performance sharply declines in prior art.

Accompanying drawing explanation

In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently: accompanying drawing is the accompanying drawing of some embodiments of the present invention below, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing that can realize technical solution of the present invention equally can also be obtained according to these accompanying drawings.

The scene graph of the intra-cell resource distribution that Fig. 1 provides for one embodiment of the invention;

The schematic flow sheet of the decision method of the user property that Fig. 2 provides for one embodiment of the invention;

The schematic flow sheet of the decision method of the user property that Fig. 3 A provides for another embodiment of the present invention;

The schematic flow sheet of the decision method of the user property that Fig. 3 B provides for another embodiment of the present invention;

The schematic flow sheet of the method for the coordinating district interference that Fig. 4 provides for another embodiment of the present invention;

The schematic diagram of scheduling of resource in the community that Fig. 5 provides for another embodiment of the present invention;

The structural representation of the decision maker of the user property that Fig. 6 A provides for another embodiment of the present invention;

The structural representation of the decision maker of the user property that Fig. 6 B provides for another embodiment of the present invention;

The structural representation of the decision maker of the user property that Fig. 6 C provides for another embodiment of the present invention;

The structural representation of the base station that Fig. 7 A provides for another embodiment of the present invention;

The structural representation of the base station that Fig. 7 B provides for another embodiment of the present invention.

Embodiment

For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme of the present invention is clearly and completely described.Obviously, each following embodiment is all the embodiment of a part of the present invention.Based on each embodiment that the present invention is following, those of ordinary skill in the art are even without making creative work, also the even whole technical characteristic of equivalent transformation part can be passed through, and acquisition can solve the technology of the present invention problem, realize other embodiment of the technology of the present invention effect, and these each embodiments converting and come obviously do not depart from scope disclosed in this invention.

It should be noted that, the user mentioned in following examples, edge customer, central user etc. are subscriber equipment, or perhaps the subscriber equipment that user uses, and for convenience of description, all use user to replace in following description.

In prior art, intra-cell users attribute divides according to SINR by base station, user in each community is divided into edge customer and central user, and wherein, in community, the region at edge customer place is fringe region, region centered by the region at central user place, see Fig. 1, each community comprises three sectors, and in Fig. 1, each larger hexagon is a sector, in each sector, dash area is fringe region, region centered by middle little hexagon.

Further, whole frequency resources in each community divide by base station, are divided into multiple Resource Block (Resource Block is called for short RB), and be the edge customer configuration section RB in each sector, remaining RB then configures to the central user in community.

Community 1 shown in Fig. 1 uses an edge band pattern 1; Community 3, community 5, community 7 use same edge band pattern 2; Community 2, community 4, community 6 use same edge band mode 3.In addition, 1 to community, community 7 shares same center frequency-band.It is to be understood that in whole frequency band, edge band determine complete after, remaining frequency band is center frequency-band.

Usually, the path loss of central user is less, and reducing power can not affect normal work, and then central user adopts low-power to dispatch on center frequency-band, and edge customer adopts high power to dispatch on edge band.Thus, if user property judges inaccurate, then cause some to belong to the user that be classified as edge customer and be judged as central user, the performance of this user is reduced.

Further, above-mentioned low-power scheduling and the capacity of high power scheduling mode on LTE system have larger impact.Such as, each community uses the high power frequency band of a part as this community of system bandwidth, when the center frequency-band in this community and edge band load imbalance, existing scheduling mode can cause partial-band do not distribute to user and frequency band is wasted, and then causes very large impact to LTE system performance.

Following examples provide a kind of decision method of user property, and first, the user j in acquisition community, base station is as transmission rate during CEU and CCU; And then base station obtains the maximum of utility function according to transmission rate, using the user property of attribute this user j in community of the user j corresponding to the transmission rate corresponding to utility function maximum, user property is edge customer or central user, can avoid thus causing due to user property misjudgment the problem that the performance of user in coordinates interference process in community sharply declines in prior art.

As shown in Figure 2, Fig. 2 shows the schematic flow sheet of the decision method of the user property that one embodiment of the invention provides, and the decision method of the user property in the present embodiment as mentioned below.

201, the user j in base station acquisition community is as transmission rate during CEU and CCU.

Preferably, base station can obtain user j in community as Signal to Interference plus Noise Ratio during CEU and CCU; According to the user j in Signal to Interference plus Noise Ratio acquisition community as transmission rate during CEU and CCU, wherein, if user j is defined as edge customer, then directly obtain the transmission rate of user j as edge customer, j gets positive integer.

202, base station obtains the maximum of utility function according to transmission rate, and using the user property of attribute this user j in community of the user j corresponding to the transmission rate corresponding to utility function maximum, this user property is edge customer or central user.

It should be noted that, above-mentioned base station can judge edge customer in community and central user interval certain cycle (as 10s, 20s, 50s etc.) to the decision method of user property.

From above-described embodiment, the decision method of the user property of the present embodiment, central user and edge customer can be judged preferably, so can effectively avoid in prior art because of user property judge inaccurate/mistake time cause cell scheduling time the user performance problem that sharply declines.

As shown in Fig. 3 A, Fig. 3 B, Fig. 3 A and 3B shows the schematic flow sheet of the decision method of the user property that one embodiment of the invention provides, and the decision method of the user property in the present embodiment as mentioned below.

301, the user j in base station acquisition community is as transmission rate during CEU and CCU, and such as, the user j in acquisition community, base station, as Signal to Interference plus Noise Ratio during CEU and CCU, obtains user j in community as transmission rate during CEU and CCU according to Signal to Interference plus Noise Ratio.

For example, the user j in community is as follows as the obtain manner of Signal to Interference plus Noise Ratio during CEU and CCU:

${\mathrm{\γ}}_j=\frac{[{\mathrm{\δ}}_j{\mathrm{\α}}_i+(1-{\mathrm{\δ}}_j){\mathrm{\β}}_i]P_{\mathrm{ij}}}{\underset{l=1,l\≠i}{\overset{I}{\mathrm{\Σ}}}{P}_{\mathrm{lj}}+{\mathrm{\σ}}^2}$

User j in community is as follows as the obtain manner of transmission rate during CEU and CCU:

$R_j^{\mathrm{CEU}}=\frac{{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CEU}}\right|}\log (1+{\mathrm{\γ}}_j),$ $R_j^{\mathrm{CCU}}=\frac{1-{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CCU}}\right|}\log (1+{\mathrm{\γ}}_j);$

Wherein, I is the quantity of community, gets positive integer; 1 for summation time change sequence number, get positive integer; α _ibe the power of the edge band of i-th community, β _ibe the power of the center frequency-band of i-th community; J is the number of users in each community, gets positive integer; P _ijreference Signal Received Power (Reference Signal Received Power is called for short RSRP) in whole bandwidth of the cell i received for user j, σ ²for Background Noise Power;

δ _jbe used to refer to user j and be judged as edge customer or central user, value is 1 expression edge customer, and value is 0 expression central user; λ _ifor edge band accounts for the ratio of whole bandwidth of cell; S represents the set of the user in each community, for the set of edge customer, centered by the set of user;

γ _jfor the Signal to Interference plus Noise Ratio of user j;

for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

302, the first utility function is searched according to cell capacity maximization principle in base station, and described first utility function is $f(C_1,C_2,...,C_J)=\underset{j=1}{\overset{J}{\mathrm{\Σ}}}{C}_j,$ $C_j=\left\{\begin{array}{cc}{R}_j^{\mathrm{CEU}},& \mathrm{if}{\mathrm{\δ}}_j=0\\ R_j^{\mathrm{CCU}},& \mathrm{if}{\mathrm{\δ}}_j=0\end{array}\right..$

Wherein, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

Or as shown in Figure 3 B, above-mentioned step can be:

302 ', the second utility function is searched according to the user rate fairness doctrine in base station, and described second utility function is: $f(C_1,C_2,...,C_J)=\frac{1}{\underset{j=1}{\overset{J}{\mathrm{\Σ}}}\frac{1}{C_j}},$ $C_j=\left\{\begin{array}{cc}{R}_j^{\mathrm{CEU}},& \mathrm{if}{\mathrm{\δ}}_j=0\\ R_j^{\mathrm{CCU}},& \mathrm{if}{\mathrm{\δ}}_j=0\end{array}\right..$

303, base station obtains the maximum of utility function (the first utility function as above or the second utility function) according to aforesaid transmission rate, using the user property of attribute this user j in community of the user j corresponding to the transmission rate corresponding to utility function maximum.

Particularly, $C_j=\left\{\begin{array}{cc}{R}_j^{\mathrm{CEU}},& \mathrm{if}{\mathrm{\δ}}_j=0\\ R_j^{\mathrm{CCU}},& \mathrm{if}{\mathrm{\δ}}_j=0\end{array}\right.,$ Acquisition utility function f ( _c1, C ₂..., D _j) maximum of (this utility function can be the first above-mentioned utility function or is above-mentioned the second utility function) $\arg \underset{{\mathrm{\δ}}_1,{\mathrm{\δ}}_2,...,{\mathrm{\δ}}_J}{\max }\left\{f(C_1,C_2,...,C_J)\right\},$ And then $\{S_i^{\mathrm{CEU}},S_i^{\mathrm{CCU}}\}=\arg \underset{{\mathrm{\δ}}_1,{\mathrm{\δ}}_2,...,{\mathrm{\δ}}_J}{\max }\left\{f(C_1,C_2,...,C_J)\right\};$

Wherein, for the set of edge customer, centered by the set of user, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

From above-described embodiment, the decision method of the user property of the present embodiment, can judge central user and edge customer preferably, makes to obtain compromise preferably between marginal user performance and cell capacity.

In addition, in the application scenarios of reality, the decision procedure of user property can be as described below.

User j in S01, acquisition community, base station is as transmission rate during edge customer CEU and central user CCU.

For example, base station directly can obtain the transmission rate of CEU according to the formula (1) stored in a base station, and obtains the transmission rate of CCU according to the formula (2) stored in a base station;

$R_j^{\mathrm{CEU}}=\frac{{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CEU}}\right|}\log (1+\frac{{\mathrm{\α}}_i{P}_{\mathrm{ij}}}{\underset{l=1,l\≠i}{\overset{I}{\mathrm{\Σ}}}{P}_{\mathrm{lj}}+{\mathrm{\σ}}^2})---\left(1\right)$

$R_j^{\mathrm{CCU}}=\frac{1-{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CCU}}\right|}\log (1+\frac{{\mathrm{\β}}_i{P}_{\mathrm{ij}}}{\underset{l=1,l\≠i}{\overset{I}{\mathrm{\Σ}}}{P}_{\mathrm{lj}}+{\mathrm{\σ}}^2})---\left(2\right)$

Wherein, formula (1) can be consistent with the parameter of the formula exemplified in a upper embodiment step 301 with the parameter used in formula (2), the no longer repeat specification of this place.

The formula (3) that it is to be understood that the deduction process of above-mentioned formula (1), (2) is following is to shown in formula (7).

The first step, according to the Signal to Interference plus Noise Ratio γ of user j in the cell i that RSRP obtains _jfor:

${\mathrm{\γ}}_j=E_{\mathrm{\τ}}\left\{\frac{[{\mathrm{\δ}}_j{\mathrm{\α}}_i+(1-{\mathrm{\δ}}_j){\mathrm{\β}}_i]P_{\mathrm{ij}}}{\underset{l=1,l\≠1}{\overset{I}{\mathrm{\Σ}}}[{\mathrm{\τ}}_{\mathrm{kl}}{\mathrm{\α}}_l+(1-{\mathrm{\τ}}_{\mathrm{kl}}){\mathrm{\β}}_l]P_{\mathrm{lj}}+{\mathrm{\σ}}^2}\right\}---\left(3\right)$

Wherein E{} represents and asks mathematic expectaion, τ _kifor a kth RB of indicating cell i is edge band or center frequency-band, value is 1 expression edge band, and value is 0 expression center frequency-band;

Other parameters can refer to the explanation in above-described embodiment.

Second step, simplifies above-mentioned formula (3) according to inequality of the prior art (4), the formula (5) after being simplified.

$\frac{1}{K}\mathrm{\Σ}{X}_k\≥{\left(\mathrm{\Π}{X}_k\right)}^{1/K}\≥\frac{K}{\mathrm{\Σ}\frac{1}{X_k}}---\left(4\right)$

${\mathrm{\γ}}_j=\frac{[{\mathrm{\δ}}_j{\mathrm{\α}}_i+(1-{\mathrm{\δ}}_j){\mathrm{\β}}_i]P_{\mathrm{ij}}}{\underset{l=1,l\≠i}{\overset{I}{\mathrm{\Σ}}}{P}_{\mathrm{lj}}+{\mathrm{\σ}}^2}---\left(5\right)$

3rd step, substitutes into the transmission rate in following formula (6), (7) acquisition above-mentioned steps S01 by formula (5)

$R_j^{\mathrm{CEU}}=\frac{{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CEU}}\right|}\log (1+{\mathrm{\γ}}_j)---\left(6\right)$

$R_j^{\mathrm{CCU}}=\frac{1-{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CCU}}\right|}\log (1+{\mathrm{\γ}}_j)---\left(7\right)$

Wherein, || represent the gesture of set.

$R_j^{\mathrm{CEU}}=\frac{{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CEU}}\right|}\log (1+{\mathrm{\γ}}_j)=\frac{{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CEU}}\right|}\log (1+\frac{{\mathrm{\α}}_i{P}_{\mathrm{ij}}}{\underset{l=1,l\≠i}{\overset{I}{\mathrm{\Σ}}}{P}_{\mathrm{lj}}+{\mathrm{\σ}}^2})$

Correspondingly, obtain $R_j^{\mathrm{CCU}}=\frac{1-{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CCU}}\right|}\log (1+\frac{{\mathrm{\β}}_i{P}_{\mathrm{ij}}}{\underset{l=1,l\≠i}{\overset{I}{\mathrm{\Σ}}}{P}_{\mathrm{lj}}+{\mathrm{\σ}}^2})$

The first corresponding utility function is searched in a base station according to cell capacity maximization principle in S02, base station, and the first utility function is f (C ₁, C ₂..., C _j),

In other embodiments, the second utility function is searched according to the user rate fairness doctrine in base station, and the second utility function is: $f(C_1,C_2,...,C_J)=\frac{1}{\underset{j=1}{\overset{J}{\mathrm{\Σ}}}\frac{1}{C_j}},$ $C_j=\left\{\begin{array}{cc}{R}_j^{\mathrm{CEU}},& \mathrm{if}{\mathrm{\δ}}_j=0\\ R_j^{\mathrm{CCU}},& \mathrm{if}{\mathrm{\δ}}_j=0\end{array}\right..$

S03, the first utility function f (C obtained in above-mentioned steps S02 ₁, C ₂..., C _j) maximum $\arg \underset{{\mathrm{\δ}}_1,{\mathrm{\δ}}_2,...,{\mathrm{\δ}}_J}{\max }\left\{f(C_1,C_2,...,C_J)\right\},$ And then $\{S_i^{\mathrm{CEU}},S_i^{\mathrm{CCU}}\}=\arg \underset{{\mathrm{\δ}}_1,{\mathrm{\δ}}_2,...,{\mathrm{\δ}}_J}{\max }\left\{f(C_1,C_2,...,C_J)\right\}.$

In practical application scene, base station can adopt traversal mode or iterative manner to obtain above-mentioned utility function f (C ₁, C ₂..., C _j) maximum, obtain $\{S_i^{\mathrm{CEU}},S_i^{\mathrm{CCU}}\}=\arg \underset{{\mathrm{\δ}}_1,{\mathrm{\δ}}_2,...,{\mathrm{\δ}}_J}{\max }\left\{f(C_1,C_2,...,C_J)\right\}.$

Illustrate in the present embodiment, the user rate fairness doctrine used in the cell capacity maximization principle mentioned in step S02 and other embodiments is to the division of user property:

Such as, 2 user UE are had in a certain community ₀and UE ₁if, UE ₀when being judged to into central user, the speed of acquisition is 3Mbps, and when being judged to into edge customer, the speed of acquisition is 10Mbps; If UE ₁when being judged to into central user, the speed of acquisition is 20Mbps, and the speed obtained when being judged to into edge customer is 10Mbps.User property is judged, UE according to the maximized utility function of cell capacity ₀be judged to into edge customer, UE ₁be judged to into central user; User property is judged, UE according to the utility function of user rate justice ₀and UE ₁all be judged to into edge customer.

From above-described embodiment, the decision method of the user property of the present embodiment, by the utility function that cell capacity maximization principle is searched, the central user judged after obtaining maximum and edge customer, can ensure to obtain compromise preferably between marginal user performance and cell capacity; And then promote LTE system performance preferably.

Further, by the utility function that the user rate fairness doctrine is searched, in the corresponding transmission rate obtained after obtaining maximum, the attribute of user can be used as the user property of intra-cell users, and then the central user marked off in community and edge customer, edge customer and central user can be made to use the transmission rate of fair relatively, and then promote LTE system performance preferably.

According to a further aspect in the invention, the present invention also provides a kind of method of coordinating district interference, the method comprises: base station is according to the priority of community inward flange user and central user, RB corresponding to edge band is distributed to edge customer and central user, and according to the priority of central user, RB corresponding to center frequency-band is distributed to described central user, and this community inward flange user and described central user judge for the method for employing as above described in any embodiment.

Particularly, the RB corresponding to edge band is distributed to edge customer and central user, is specially: from the RB that the numbering corresponding to edge band is minimum, distribute toward backward edge customer and central user successively;

RB corresponding to center frequency-band is distributed to central user, is specially:

From the RB corresponding to the center frequency-band that the RB maximum with the numbering corresponding to edge band is adjacent, distribute toward backward central user successively;

Number maximum RB if be dispatched in center frequency-band, but the RB corresponding to center frequency-band does not all distribute, then distribute to described central user successively numbering minimum RB from center frequency-band, until the RB corresponding to center frequency-band all distributes.

For example, each RB to the allocation rule of edge customer and central user is: equitable proportion rule; Or, strengthen equitable proportion rule; Or, poll rule; Or, max carrier to interference rule.

The method of above-mentioned coordinating district interference can when arriving dispatching cycle, according to the priority of community inward flange user and central user, Resource Block RB corresponding to edge band is distributed, and according to the priority of central user, RB corresponding to center frequency-band is distributed, make between marginal user performance and cell capacity, to obtain compromise preferably, promote LTE system performance preferably.

As shown in Figure 4, Fig. 4 shows the schematic flow sheet of the method for the coordinating district interference that one embodiment of the invention provides, and the method for the coordinating district interference in the present embodiment as mentioned below.

401, the user j in base station acquisition community is as transmission rate during CEU and CCU, and wherein, if user j is defined as edge customer, then directly obtain the transmission rate of user j as edge customer, j gets positive integer.

For example, the user j in acquisition community, base station, as Signal to Interference plus Noise Ratio during CEU and CCU, obtains user j in community as transmission rate during CEU and CCU according to Signal to Interference plus Noise Ratio.

402, base station obtains the maximum of utility function according to transmission rate, and using the user property of attribute this user j in community of the user j corresponding to the transmission rate corresponding to utility function maximum, wherein, user property is edge customer or central user.

403, base station is according to the priority of community inward flange user and central user, RB corresponding to edge band is distributed to edge customer and described central user, and according to the priority of central user, the RB corresponding to center frequency-band is distributed to described central user.

For example, after judgement edge customer and central user, edge user allocations of edge band mode 1 (edge band pattern 1 as shown in Figure 1), to central user distributing center frequency band (center frequency-band as shown in Figure 1).

Shown in composition graphs 5, preferably, the step of the Resource Block RB corresponding to edge band being carried out distribute in above-mentioned steps 403, can be specially:

From the RB that the numbering corresponding to edge band is minimum, distribute toward backward edge customer and central user successively.

The step of the RB corresponding to center frequency-band being carried out distribute in above-mentioned steps 403, can be specially:

From the RB corresponding to the center frequency-band that the RB maximum with the numbering corresponding to edge band is adjacent, distribute toward backward central user successively;

Number maximum RB if be dispatched in center frequency-band, but the RB corresponding to center frequency-band does not all distribute, then distribute to central user successively numbering minimum RB from center frequency-band, until the RB corresponding to center frequency-band all distributes.

The method of above-mentioned coordinating district interference is by priority allocation edge band, reallocation center frequency-band, and then better can coordinate presence of intercell interference, promote the capacity of community, make between marginal user performance and cell capacity, to obtain compromise preferably, promote LTE system performance preferably.

As shown in Figure 6A, Fig. 6 A shows the structural representation of the decision maker of the user property that one embodiment of the invention provides, and the decision maker of the user property in the present embodiment comprises: acquiring unit 61 and identifying unit 62.

Particularly, acquiring unit 61 is for obtaining user j in community as transmission rate during edge customer CEU and central user CCU, and wherein, if user j is defined as edge customer, then directly obtain the transmission rate of user j as edge customer, j gets positive integer;

Identifying unit 62 is for obtaining the maximum of utility function according to transmission rate, using the user property of attribute this user j in community of the user j corresponding to the transmission rate corresponding to utility function maximum, wherein, user property is edge customer or central user.

It should be noted that, the decision maker of above-mentioned user property can be arranged in base station.

In actual applications, acquiring unit 61 is specifically for obtaining user j in described community as Signal to Interference plus Noise Ratio during CEU and CCU; User j in described community is obtained as transmission rate during CEU and CCU according to Signal to Interference plus Noise Ratio.

Further, as shown in Figure 6B, the decision maker of above-mentioned user property also comprises: first searches unit 63; This first searches unit 63 for searching the first utility function according to cell capacity maximization principle, and described first utility function is $f(C_1,C_2,...,C_J)=\underset{j=1}{\overset{J}{\mathrm{\Σ}}}{C}_j,$ $C_j=\left\{\begin{array}{cc}{R}_j^{\mathrm{CEU}},& \mathrm{if}{\mathrm{\δ}}_j=0\\ R_j^{\mathrm{CCU}},& \mathrm{if}{\mathrm{\δ}}_j=0\end{array}\right.;$ Wherein, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

Preferably, as shown in Figure 6 C, the decision maker of above-mentioned user property also comprises second and searches unit 64, and this second searches unit 64 for searching the second utility function according to the user rate fairness doctrine, and described second utility function is: $f(C_1,C_2,...,C_J)=\frac{1}{\underset{j=1}{\overset{J}{\mathrm{\Σ}}}\frac{1}{C_j}},$ $C_j=\left\{\begin{array}{cc}{R}_j^{\mathrm{CEU}},& \mathrm{if}{\mathrm{\δ}}_j=0\\ R_j^{\mathrm{CCU}},& \mathrm{if}{\mathrm{\δ}}_j=0\end{array}\right.;$ Wherein, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

Correspondingly, identifying unit 62 specifically for, obtain utility function f (C ₁, C ₂..., C _j) maximum of (utility function at this place can be the first above-mentioned utility function or the second utility function) $\arg \underset{{\mathrm{\δ}}_1,{\mathrm{\δ}}_2,...,{\mathrm{\δ}}_J}{\max }\left\{f(C_1,C_2,...,C_J)\right\},$ And then $\{S_i^{\mathrm{CEU}},S_i^{\mathrm{CCU}}\}=\arg \underset{{\mathrm{\δ}}_1,{\mathrm{\δ}}_2,...,{\mathrm{\δ}}_J}{\max }\left\{f(C_1,C_2,...,C_J)\right\};$

Wherein, for the set of edge customer, centered by the set of user, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

It should be noted that, said apparatus comprise first search unit and second search unit time, said apparatus acquiring unit get user j in community as transmission rate during edge customer CEU and central user CCU after, can determine that use first is searched unit and still used second to search unit according to pre-conditioned, corresponding unit of searching is adopted to search corresponding utility function after determination, to be obtained the maximum of utility function by identifying unit, and then the edge customer marked off in community and central user etc.

From above-described embodiment, the base station in the present embodiment, can judge central user and edge customer preferably, so can effectively avoid in prior art because of user property judge inaccurate/mistake time cause user to be that performance is anxious occupying the problem declined.

According to a further aspect in the invention, the present invention also provides a kind of base station, and this base station can be the base station in LTE system.As shown in Figure 7 A, base station in the present embodiment comprises: allocation units 71, for the priority according to community inward flange user and central user, RB corresponding to edge band is distributed to edge customer and central user, and according to the priority of central user, the RB corresponding to center frequency-band is distributed to central user; And

The decision maker 72 of the user property as above described in any embodiment of the present invention, for judging the user property of intra-cell users, wherein, user property is edge customer or central user.

In actual applications, allocation units 71, specifically for the RB minimum from the numbering corresponding to edge band, distribute toward backward edge customer and central user successively.

Further, allocation units 71, specifically for from the RB corresponding to the adjacent center frequency-band of the RB maximum with the numbering corresponding to edge band, distribute toward backward central user successively;

Number maximum RB if be dispatched in center frequency-band, but the RB corresponding to center frequency-band does not all distribute, then distribute to central user successively numbering minimum RB from center frequency-band, until the RB corresponding to center frequency-band all distributes.

Edge customer and central user can be dispatched preferably in above-mentioned base station, so can effectively avoid in prior art because of user property judge inaccurate/mistake time cause user to be the problem that performance sharply declines.

In actual applications, above-mentioned base station can comprise processor, and this processor is for obtaining user j in community as transmission rate during CEU and CCU, wherein, if user j is defined as edge customer, then directly obtain the transmission rate of user j as edge customer, j gets positive integer;

Obtain the maximum of utility function according to transmission rate, using the user property of attribute this user j in community of the user j corresponding to the transmission rate corresponding to utility function maximum, wherein, user property can be edge customer or central user.

Further, above-mentioned processor is also for the priority according to community inward flange user and central user, RB corresponding to edge band is distributed to edge customer and central user, and according to the priority of central user, the RB corresponding to center frequency-band is distributed to central user.

Under another kind of application scenarios, as shown in Figure 7 B, Fig. 7 B shows the structural representation of the base station that one embodiment of the invention provides, and the base station in the present embodiment comprises: processor 71 ' and memory 72 ';

Wherein, memory 72 ' is for storing the first utility function and/or the second utility function, and each utility function correspondence one is pre-conditioned;

Processor 71 ' is for obtaining user j in community as transmission rate during CEU and CCU; Wherein, if user j is defined as edge customer, then directly obtain the transmission rate of user j as edge customer, j gets positive integer;

Obtain the maximum of utility function according to transmission rate, using the user property of attribute this user j in community of the user j corresponding to the transmission rate corresponding to utility function maximum, wherein, user property can be edge customer or central user.

Further, above-mentioned processor 71 ' also for searching the first utility function according to pre-conditioned (as cell capacity maximization principle or the user rate fairness doctrine), or searches the second utility function.

Preferably, above-mentioned processor 71 ' is also for the priority according to community inward flange user and central user, RB corresponding to edge band is distributed to edge customer and central user, and according to the priority of central user, the RB corresponding to center frequency-band is distributed to central user.

Preferably, processor 71 ' can obtain user j in community as Signal to Interference plus Noise Ratio during CEU and CCU; According to the user j in Signal to Interference plus Noise Ratio acquisition community as transmission rate during CEU and CCU;

Search the first utility function according to cell capacity maximization principle, the first utility function is $f(C_1,C_2,...,C_J)=\underset{j=1}{\overset{J}{\mathrm{\Σ}}}{C}_j,$ $C_j=\left\{\begin{array}{cc}{R}_j^{\mathrm{CEU}},& \mathrm{if}{\mathrm{\δ}}_j=0\\ R_j^{\mathrm{CCU}},& \mathrm{if}{\mathrm{\δ}}_j=0\end{array}\right.;$

Obtain the first utility function f (C ₁, C ₂..., C _j) maximum and then $\{S_i^{\mathrm{CEU}},S_i^{\mathrm{CCU}}\}=\arg \underset{{\mathrm{\δ}}_1,{\mathrm{\δ}}_2,...,{\mathrm{\δ}}_J}{\max }\left\{f(C_1,C_2,...,C_J)\right\};$ Wherein, for the set of edge customer, centered by the set of user, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

In another scene, processor 71 ' can obtain user j in community as Signal to Interference plus Noise Ratio during CEU and CCU; According to the user j in described Signal to Interference plus Noise Ratio acquisition community as transmission rate during CEU and CCU;

Search the second utility function according to the user rate fairness doctrine, the second utility function is:

$f(C_1,C_2,...,C_J)=\frac{1}{\underset{j=1}{\overset{J}{\mathrm{\Σ}}}\frac{1}{C_j}},$ $C_j=\left\{\begin{array}{cc}{R}_j^{\mathrm{CEU}},& \mathrm{if}{\mathrm{\δ}}_j=0\\ R_j^{\mathrm{CCU}},& \mathrm{if}{\mathrm{\δ}}_j=0\end{array}\right..$

Obtain the second utility function f (C ₁, C ₂..., C _j) maximum and then $\{S_i^{\mathrm{CEU}},S_i^{\mathrm{CCU}}\}=\arg \underset{{\mathrm{\δ}}_1,{\mathrm{\δ}}_2,...,{\mathrm{\δ}}_J}{\max }\left\{f(C_1,C_2,...,C_J)\right\};$ Wherein, for the set of edge customer, centered by the set of user, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

From above-described embodiment, the base station in the present embodiment, can judge central user and edge customer preferably, so can effectively avoid in prior art because of user property judge inaccurate/mistake time cause user to be the problem that performance sharply declines.

One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that program command is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.

Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (15)

1. a decision method for user property, is characterized in that, comprising:

User j in acquisition community is as transmission rate during edge customer CEU and central user CCU, and wherein, if user j is defined as edge customer, then directly obtain the transmission rate of user j as edge customer, j gets positive integer;

Obtain the maximum of utility function according to described transmission rate, using the user property of the attribute of the user j corresponding to the transmission rate corresponding to described utility function maximum as this user j in described community, described user property is edge customer or central user;

Wherein, the user j in described acquisition community, as transmission rate during CEU and CCU, comprising:

Obtain user j in described community as Signal to Interference plus Noise Ratio during CEU and CCU; User j in described community is obtained as transmission rate during CEU and CCU according to described Signal to Interference plus Noise Ratio;

User j in described community is as follows as the obtain manner of Signal to Interference plus Noise Ratio during CEU and CCU:

${\mathrm{\γ}}_j=\frac{[{\mathrm{\δ}}_j{\mathrm{\α}}_i+(1-{\mathrm{\δ}}_j){\mathrm{\β}}_i]P_{\mathrm{ij}}}{\underset{l=1,l\≠i}{\overset{I}{\mathrm{\Σ}}}{P}_{\mathrm{lj}}+{\mathrm{\σ}}^2};$

User j in described community is as follows as the obtain manner of transmission rate during CEU and CCU:

$R_j^{\mathrm{CEU}}=\frac{{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CEU}}\right|}\log (1+{\mathrm{\γ}}_j),$ $R_j^{\mathrm{CCU}}=\frac{1-{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CCU}}\right|}\log (1+{\mathrm{\γ}}_j),$

Wherein, I is the quantity of community, gets positive integer; The sequence number of change when l is summation, gets positive integer; α _ibe the power of the edge band of i-th community, β _ibe the power of the center frequency-band of i-th community; J is the number of users in each community, gets positive integer; P _ijfor the Reference Signal Received Power RSRP of the cell i that user j receives, σ ²for Background Noise Power;

δ _jbe used to refer to user j and be judged as edge customer or central user, value is 1 expression edge customer, and value is 0 expression central user; λ _ifor edge band accounts for the ratio of whole bandwidth of cell; S represents the set of the user in each community, for the set of edge customer, centered by the set of user;

γ _jfor the Signal to Interference plus Noise Ratio of user j; for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

2. method according to claim 1, is characterized in that, also comprises:

Search the first utility function according to cell capacity maximization principle, described first utility function is

$f(C_1,C_2,\·\·\·,C_J)=\underset{j=1}{\overset{J}{\mathrm{\Σ}}}{C}_j,C_j\left\{\begin{array}{ccc}{R}_j^{\mathrm{CEU}}& \mathrm{if}& {\mathrm{\δ}}_j=1\\ R_j^{\mathrm{CCU}}& \mathrm{if}& {\mathrm{\δ}}_j=0\end{array}\right.;$

Wherein, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

3. method according to claim 1, is characterized in that, also comprises:

Search the second utility function according to the user rate fairness doctrine, described second utility function is:

$f(C_1,C_2,\·\·\·,C_J)=\frac{1}{\underset{j=1}{\overset{J}{\mathrm{\Σ}}}\frac{1}{C_j}}{,C}_j\left\{\begin{array}{ccc}{R}_j^{\mathrm{CEU}}& \mathrm{if}& {\mathrm{\δ}}_j=1\\ R_j^{\mathrm{CCU}}& \mathrm{if}& {\mathrm{\δ}}_j=0\end{array}\right.;$

Wherein, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

4. according to the method in claim 2 or 3, it is characterized in that, the described maximum obtaining utility function according to described transmission rate, using the attribute of the user j corresponding to the transmission rate corresponding to described utility function maximum as the user property of this user j in described community, is specially:

Obtain described utility function f (C ₁, C ₂..., C _j) maximum and then $\{S_i^{\mathrm{CEU}},S_i^{\mathrm{CCU}}\}=\arg \underset{{\mathrm{\δ}}_1,{\mathrm{\δ}}_2,\·\·\·,{\mathrm{\δ}}_J}{\max }\left\{f(C_1,C_2,\·\·\·,C_J)\right\};$

Wherein, for the set of edge customer, centered by the set of user, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

5. a method for Inter-Cell Interference Coordination, is characterized in that, comprising:

Base station is according to the priority of community inward flange user and central user, Resource Block RB corresponding to edge band is distributed to described edge customer and described central user, and according to the priority of central user, RB corresponding to center frequency-band is distributed to described central user, described community inward flange user and described central user for employing as above Claims 1-4 arbitrary described method judge.

6. method according to claim 5, is characterized in that, described RB corresponding to edge band is distributed to described edge customer and described central user, is specially:

From the RB that the numbering corresponding to edge band is minimum, distribute toward backward described edge customer and described central user successively.

7. method according to claim 5, is characterized in that, described RB corresponding to center frequency-band is distributed to described central user, is specially:

From the RB corresponding to the center frequency-band that the RB maximum with the numbering corresponding to described edge band is adjacent, distribute toward backward described central user successively;

Number maximum RB if be dispatched in center frequency-band, but the RB corresponding to center frequency-band does not all distribute, then distribute to described central user successively numbering minimum RB from center frequency-band, until the RB corresponding to center frequency-band all distributes.

8., according to the arbitrary described method of claim 5 to 7, it is characterized in that, each RB to the allocation rule of edge customer and/or central user is:

Equitable proportion rule; Or

Strengthen equitable proportion rule; Or

Poll rule; Or

Max carrier to interference rule.

9. a decision maker for user property, is characterized in that, comprising:

Acquiring unit, for obtaining user j in community as transmission rate during edge customer CEU and central user CCU, wherein, if user j is defined as edge customer, then directly obtain the transmission rate of user j as edge customer, j gets positive integer;

Identifying unit, for obtaining the maximum of utility function according to described transmission rate, using the user property of the attribute of the user j corresponding to the transmission rate corresponding to described utility function maximum as this user j in described community, described user property is edge customer or central user;

Wherein, described acquiring unit is specifically for obtaining user j in described community as Signal to Interference plus Noise Ratio during CEU and CCU; User j in described community is obtained as transmission rate during CEU and CCU according to described Signal to Interference plus Noise Ratio;

User j in described community is as follows as the obtain manner of Signal to Interference plus Noise Ratio during CEU and CCU:

${\mathrm{\γ}}_j=\frac{[{\mathrm{\δ}}_j{\mathrm{\α}}_i+(1-{\mathrm{\δ}}_j){\mathrm{\β}}_i]P_{\mathrm{ij}}}{\underset{l=1,l\≠i}{\overset{I}{\mathrm{\Σ}}}{P}_{\mathrm{lj}}+{\mathrm{\σ}}^2};$

User j in described community is as follows as the obtain manner of transmission rate during CEU and CCU:

$R_j^{\mathrm{CEU}}=\frac{{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CEU}}\right|}\log (1+{\mathrm{\γ}}_j),$ $R_j^{\mathrm{CCU}}=\frac{1-{\mathrm{\λ}}_i}{\left|S_i^{\mathrm{CCU}}\right|}\log (1+{\mathrm{\γ}}_j),$

Wherein, I is the quantity of community, gets positive integer; The sequence number of change when l is summation, gets positive integer; α _ibe the power of the edge band of i-th community, β _ibe the power of the center frequency-band of i-th community; J is the number of users in each community, gets positive integer; P _ijfor the Reference Signal Received Power RSRP of the cell i that user j receives, σ ²for Background Noise Power;

δ _jbe used to refer to user j and be judged as edge customer or central user, value is 1 expression edge customer, and value is 0 expression central user; λ _ifor edge band accounts for the ratio of whole bandwidth of cell; S represents the set of the user in each community, for the set of edge customer, centered by the set of user;

γ _jfor the Signal to Interference plus Noise Ratio of user j; for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

10. device according to claim 9, is characterized in that, also comprises:

First searches unit, and for searching the first utility function according to cell capacity maximization principle, described first utility function is $f(C_1,C_2,\·\·\·,C_J)=\underset{j=1}{\overset{J}{\mathrm{\Σ}}}{C}_j,C_j\left\{\begin{array}{ccc}{R}_j^{\mathrm{CEU}}& \mathrm{if}& {\mathrm{\δ}}_j=1\\ R_j^{\mathrm{CCU}}& \mathrm{if}& {\mathrm{\δ}}_j=0\end{array}\right.;$

Wherein, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

11. devices according to claim 9, is characterized in that, also comprise:

Second searches unit, and for searching the second utility function according to the user rate fairness doctrine, described second utility function is: $f(C_1,C_2,\·\·\·,C_J)=\frac{1}{\underset{j=1}{\overset{J}{\mathrm{\Σ}}}\frac{1}{C_j}}{,C}_j\left\{\begin{array}{ccc}{R}_j^{\mathrm{CEU}}& \mathrm{if}& {\mathrm{\δ}}_j=1\\ R_j^{\mathrm{CCU}}& \mathrm{if}& {\mathrm{\δ}}_j=0\end{array}\right.;$

Wherein, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

12. devices according to claim 10 or 11, is characterized in that, described identifying unit specifically for

Obtain described utility function f (C ₁, C ₂..., C _j) maximum and then $\{S_i^{\mathrm{CEU}},S_i^{\mathrm{CCU}}\}=\arg \underset{{\mathrm{\δ}}_1,{\mathrm{\δ}}_2,\·\·\·,{\mathrm{\δ}}_J}{\max }\left\{f(C_1,C_2,\·\·\·,C_J)\right\};$

Wherein, for the set of edge customer, centered by the set of user, for user j is as transmission rate during CEU; for user j is as transmission rate during CCU.

13. 1 kinds of base stations, is characterized in that, comprising:

Allocation units, for the priority according to community inward flange user and central user, Resource Block RB corresponding to edge band is distributed to described edge customer and described central user, and according to the priority of central user, the RB corresponding to center frequency-band is distributed to described central user; And

The decision maker of the user property as described in as arbitrary in claim 9 to 12, for judging the user property of described intra-cell users, described user property is edge customer or central user.

14. base stations according to claim 13, is characterized in that, described allocation units specifically for

From the RB that the numbering corresponding to edge band is minimum, distribute toward backward described edge customer and described central user successively.

15. base stations according to claim 13, is characterized in that, described allocation units specifically for

From the RB corresponding to the center frequency-band that the RB maximum with the numbering corresponding to described edge band is adjacent, distribute toward backward described central user successively;

Number maximum RB if be dispatched in center frequency-band, but the RB corresponding to center frequency-band does not all distribute, then distribute to described central user successively numbering minimum RB from center frequency-band, until the RB corresponding to center frequency-band all distributes.