CN102387554A - Method for allocating inter-cell interference coordination (ICIC) resource - Google Patents

Abstract

The invention discloses a method for allocating inter-cell interference coordination (ICIC) resource. The method comprises the following steps: a certain number of neighboring cells are taken as a cell group through a public management entity, and resource is reserved as round-robin resource of the cell group; when the cells in the cell group report edge resource insufficiency to the public management entity, the public management entity indicates all the cells in the cell group to start an algorithm; all the cells in the cell group calculate the round-robin sequence of the round-robin resource among the cells according to the algorithm; and the cells use the round-robin resource according to the round-robin sequence. The method has the beneficial effects of realizing the dynamic interference coordination algorithm without information interaction at an interface X2 and preventing the situations that new inter-cell interference among the neighboring cells is possibly caused by load information interaction and a static resource partitioning mode can not adapt to unbalanced inter-cell edge resource; and meanwhile the public management entity is configured simply, and calculation based on the algorithm is mainly completed in a base station with small computation quantity.

Description

A kind of Inter-Cell Interference Coordination resource allocation methods

Technical field

The present invention relates to moving communicating field, particularly relate to a kind of Inter-Cell Interference Coordination resource allocation methods.

Background technology

LTE (Long Term Evolution; Long Term Evolution) system adopts flat network configuration; In the LTE system based on OFDM (Orthogonal Frequency Division Multiplexing, OFDM) technology, the main interference that influences systematic function is from presence of intercell interference.Therefore ICIC (Inter-Cell Interference Coordination, coordinating district interference) technology is one of effective means that improves systematic function.ICIC remains on the interference level between the sub-district under the controlled state through Radio Resource is managed, and especially in the cell edge area, need do special management to Radio Resource, to satisfy the lifting demand of LTE system cell edge customer service quality.

The basic thought of Inter-Cell Interference Coordination is that certain restriction is carried out in the use to resource in the minizone, comprises that limiting which running time-frequency resource can use, perhaps in certain its transmitting power of running time-frequency resource limit.

From the frequency that the restriction of Radio Resource use is upgraded, the ICIC method can be divided into following three major types:

Static coordination: the time scale that the use of Radio Resource restriction is reconfigured is some days.Need interactive information between the base station hardly.

Semi-static coordination: the time scale that reconfigures of restriction of using to Radio Resource is level or longer second.The frequency of information transmission is tens seconds or minute level between the base station.

Dynamic coordinate: the time scale that the use of Radio Resource restriction is reconfigured is tens or the hundreds of millisecond, and the frequency that information is transmitted between the base station is similar.

Wherein, static ICIC algorithm is representative with SFR (Soft Frequency Reuse, soft-frequency reuse), the pre-configured minizone of this algorithm resource division, and as using full power transmissions on certain specific sub-band, transmitting power is reduced on all the other sub-bands.

Wherein, Semi-static and dynamic I CIC algorithm; Need the support of X2 interface (being the communication interface between eNB and the eNB) Load information (load information) information in general, according to of the indication of this information, when this cell scheduling to the last disturbed condition of each PRB; Avoid dividing the PRB of pairing adjacent area generation high interference, realize the purpose of ICIC for edge customer.

The 3GPP standard realizes minizone dynamic interference coordination purpose through interface message Load information at present.This method needs mutual a large amount of X2 interface message; And for the cell-of-origin that receives this message; For fear of and send the interference between the adjacent sub-district of this message, can carry out resource re-allocation, probably cause new presence of intercell interference with other adjacent sub-district.

On the other hand, existing static ICIC resource dividing method, flexibility is relatively poor, the situation poor-performing that especially edge customer is increased.

Summary of the invention

The invention provides a kind of Inter-Cell Interference Coordination resource allocation methods; This method need be in the X2 interface interactive information; Can realize the dynamic interference coordination algorithm; Avoided Load Information interacting message, that possibly cause and new presence of intercell interference other adjacent sub-district, and static resource is divided and can't be adapted to the unbalanced situation of minizone edge resource.Simultaneously, public administration physical arrangements of the present invention is simple, and the calculating of algorithm is mainly accomplished at inside of base station, and operand is little.

For achieving the above object, technical scheme of the present invention is achieved in that

The invention discloses a kind of disturbance coordination method of minizone, this method comprises:

Get the neighbor cell of some, as a cell set, and reserved resource, as the repeating query resource of said cell set;

When said public administration entity received the edge resource deficiency information that the sub-district reports in the said cell set, algorithm was preset in all sub-districts startups in the indicating cell group;

All sub-districts go out the round-robin order of said repeating query resource in the minizone that respectively reports the not enough information of edge resource according to the said algorithm computation that presets in the said cell set;

Said repeating query resource is used according to said round-robin order in the sub-district that reports the not enough information of edge resource in the said cell set.

In said method, said public administration entity receives the not enough information of edge resource that the sub-district reports in the said cell set and specifically comprises:

The public administration entity is provided with threshold T h _Dyn-start, and all sub-districts in the cell set are given in configuration;

Each sub-district in the said cell set with edge customer in this sub-district to edge resources occupation rate U _EdgeWith said threshold T h _Dyn-startCompare, work as U _Edge＞Th _Dyn-startThe time, this sub-district reports edge resource not enough to the public administration entity.

In said method, this method further comprises:

After presetting the algorithm startup, each sub-district is calculated according to following formula and is upgraded thresholding Th _Dyn-update, and with upgrading thresholding Th _Dyn-updateSubstitute threshold T h _Dyn-start

${\mathrm{Th}}_{\mathrm{Dyn}-\mathrm{update}}=\frac{{\mathrm{Th}}_{\mathrm{Dyn}-\mathrm{start}}\·n_{\mathrm{PRB}-\mathrm{edge}}}{n_{\mathrm{PRB}-\mathrm{edge}}-\frac{1}{3}{n}_{\mathrm{PRB}}}$

Wherein, n _PRB-edgeFor before this presets algorithm and start, system default is distributed to the PRB number of the edge customer of each sub-district, n _PRBPRB number for the repeating query resource.

In said method, said reserved resource comprises:

Confirm unique repeating query resource in advance;

Or, confirm a plurality of repeating query resources in advance, and the original position of each repeating query resource and included Physical Resource Block number;

Or, the number of the continuous physical resource piece that definite in advance repeating query resource is included.

In said method, when confirming unique repeating query resource in advance, all sub-districts go out the round-robin order of said repeating query resource in the minizone that respectively reports the not enough information of edge resource and comprise according to the said algorithm computation that presets in the said cell set:

The cell ID that said public administration entity is not enough with all edge resource and the sub-district serial number information of resource repeating query dispose to all sub-districts or with the cell ID of each edge resource deficiency and the sub-district serial number information of resource repeating query and dispose separately to corresponding district;

When the sub-district serial number information of said public administration entity cell ID that edge resource is not enough and resource repeating query disposed to all sub-districts, each sub-district calculated the sequence number of current repeating query resource home cell by following formula:

Wherein, current TTI is a current time, TTI ₀For all sub-districts of said public administration entity indication start moment of prefabricated algorithm, T is applied to time of each sub-district, n for the repeating query resource _mNumber for the not enough sub-district of edge resource in the said cell set;

When the sub-district serial number information of said public administration entity cell ID that each edge resource is not enough and resource repeating query when corresponding district is given in configuration separately, current repeating query resource is calculated and rule out in each sub-district, and whether this sub-district is arrived in repeating query by following formula;

When the sub-district is not configured the sub-district sequence number of resource repeating query, do not use the repeating query resource.

In said method; Confirm a plurality of repeating query resources when in advance; And when the original position of each repeating query resource and included Physical Resource Block number, all sub-districts go out the round-robin order of said repeating query resource in the minizone that respectively reports the not enough information of edge resource and comprise according to the said algorithm computation that presets in the said cell set:

The cell ID that said public administration entity is not enough with all edge resource and the sub-district serial number information of resource repeating query dispose to all sub-districts or with the cell ID of each edge resource deficiency and the sub-district serial number information of resource repeating query and dispose separately to corresponding district;

When the sub-district serial number information of said public administration entity cell ID that edge resource is not enough and resource repeating query disposed to all sub-districts, each sub-district was calculated as follows out current repeating query resource:

Wherein, n _RNumber for the repeating query resource;

And be calculated as follows out the sequence number of current repeating query resource home cell:

When the sub-district serial number information of said public administration entity cell ID that each edge resource is not enough and resource repeating query when configuration is to corresponding district separately, each sub-district is calculated as follows out current repeating query resource:

And whether repeating query is to this sub-district to be calculated as follows and to rule out current repeating query resource:

Wherein, n _mNumber for the not enough sub-district of edge resource in the said cell set;

When the sub-district is not configured the sub-district sequence number of resource repeating query, do not use the repeating query resource of the repeating query resource sequence number that is calculated as follows out

In said method; When confirming the number of the continuous physical resource piece that the repeating query Resource Block is included in advance, all sub-districts go out the round-robin order of said repeating query resource in the minizone that respectively reports the not enough information of edge resource and comprise according to the said algorithm computation that presets in the said cell set:

The cell ID that said public administration entity is not enough with edge resource and the sub-district sequence number of resource repeating query dispose to all sub-districts in the cell set, and select a random function, and all sub-districts in the cell set are given in configuration;

Each sub-district in the said cell set also is calculated as follows out the sequence number of current repeating query resource home cell:

Each sub-district in the said cell set is applied to initial moment of time of sub-district as the input of said random function with the repeating query resource, draw the original position of the employed repeating query Resource Block in sub-district that the current time repeating query arrives through said random function;

Current time not repeating query to the sub-district also make corresponding calculated, the resource block location of result of calculation indication is vacated, leave the sub-district that current repeating query arrives for and use.

In said method, this method further comprises:

When the sub-district is judged as the edge resource deficiency, report the not enough information of edge resource to the public administration entity;

When the not enough sub-district of former edge resource is judged as edge resource when enough, report the enough information of edge resource to the public administration entity;

The public administration entity is when receiving the not enough information of edge resource and reporting any in the enough information of edge resource; The sub-district sequence number of the cell ID of updating edge inadequate resource and resource repeating query, and the not enough cell ID of the edge resource after will upgrading and the sub-district sequence number of resource repeating query are indicated to all sub-districts in the cell set;

Local preservation information is correspondingly upgraded in each sub-district, restart and preset algorithm, and the moment that will receive the renewal indication of public administration entity starts constantly as presetting algorithm.

In said method, this method further comprises:

When all sub-districts in the cell set all became the enough sub-district of edge resource, said public administration entity all sub-districts indication algorithms in said cell set finished, and said each sub-district empties local information of preserving.

In said method, this method further comprises:

The public administration entity notifies the related content of each minizone resource repeating query in the cell set to the outer adjacent area of the group of cell set;

Said group of outer adjacent area according to the information of each minizone resource repeating query in the said cell set with current repeating query resource vacate need not, finish up to the said algorithm that presets.

By above-mentioned visible, the technical scheme in the instance of the present invention is got the neighbor cell of some through the public administration entity; As a cell set, and reserved resource, as the repeating query resource of said cell set; When sub-district in the cell set when the public administration entity reports edge resource not enough, all sub-district starting algorithms in the public administration entity indicating cell group, all sub-districts go out the round-robin order of said repeating query resource in each minizone according to said algorithm computation in the cell set; And according to said round-robin order use repeating query resource; Realized need not to realize the dynamic interference coordination algorithm, avoided Load Information interacting message in the X2 interface interactive information; That possibly cause and new presence of intercell interference other adjacent sub-district, and static resource is divided and can't be adapted to the unbalanced situation of minizone edge resource.Simultaneously, public administration physical arrangements of the present invention is simple, and the calculating of algorithm is mainly accomplished at inside of base station, and operand is little.

Description of drawings

Fig. 1 is the flow chart of the dynamic adjustment minizone resource allocation methods in the instance one of the present invention;

Fig. 2 is the flow chart that the public administration entity receives the not enough information of edge resource that the sub-district reports in the cell set in the embodiment of the invention two;

Fig. 3 is the sub-district repeating query sketch map in the embodiment of the invention three;

Fig. 4 is the different application situation sketch map to non-reserved resource in the embodiment of the invention three;

Fig. 5 is the sub-district repeating query situation sketch map in the embodiment of the invention four;

Fig. 6 is the different application situation sketch map to non-reserved resource in the embodiment of the invention four;

Embodiment

In order to make the object of the invention, technical scheme and advantage clearer, describe the present invention below in conjunction with accompanying drawing and specific embodiment.

Instance one

Fig. 1 is the flow chart of the dynamic adjustment minizone resource allocation methods in the instance one of the present invention; As shown in Figure 1; Instance one of the present invention has proposed a kind of method of dynamic adjustment minizone resource allocation, and this method does not need the support of interface signaling, realizes through following steps:

101, get the neighbor cell of some, as a cell set, and reserved resource, as the repeating query resource of cell set;

102, when the public administration entity received the edge resource deficiency information that the sub-district reports in the cell set, algorithm was preset in all sub-districts startups in the indicating cell group;

103, all sub-districts go out the round-robin order of repeating query resource in the minizone that respectively reports the not enough information of edge resource according to the said algorithm computation that presets in the cell set;

104, said repeating query resource is used according to said round-robin order in the sub-district that reports the not enough information of edge resource in the cell set.

Therefore; The present invention need be in the X2 interface interactive information; Can realize the dynamic interference coordination algorithm; Avoided Load Information interacting message, that possibly cause and new presence of intercell interference other adjacent sub-district, and static resource is divided and can't be adapted to the unbalanced situation of minizone edge resource.

Implement one through the present invention, the core process of the dynamic adjustment minizone resource allocation that the present invention is proposed is introduced, below through two～five pairs of the embodiment of the invention dynamically the more detailed process of adjustment minizone resource allocation methods introduce.Wherein comprise: confirm unique repeating query resource in advance owing to reserved resource; Or, confirm a plurality of repeating query resources in advance, and the original position of each repeating query resource and included Physical Resource Block number; Or, confirm the multiple mode of number of the continuous physical resource piece that the repeating query resource is included in advance, so these three kinds of diverse ways are carried out detailed introduction through instance three～five.

Instance two

Fig. 2 is the flow chart that the public administration entity receives the not enough information of edge resource that the sub-district reports in the cell set in the embodiment of the invention two.As shown in Figure 2, it is following that the public administration entity receives the not enough information concrete steps of edge resource that the sub-district reports in the cell set:

201, the public administration entity is provided with threshold T h _Dyn-start, and dispose and give all sub-districts in the cell set, wherein threshold value can adopt empirical value;

202, each sub-district in the cell set with edge customer in this sub-district to edge resources occupation rate U _EdgeWith threshold T h _Dyn-startCompare;

203, work as U _Edge＞Th _Dyn-startThe time, this sub-district reports edge resource not enough to the public administration entity.

Instance three

Confirm the concrete steps of repeating query resource situation in the instance three of the present invention in advance.

The simplest repeating query resource selection is promptly confirmed the repeating query resource, and indicates and give each sub-district that each sub-district is used same repeating query resource regularly in advance.

(1) get the neighbor cell of some, as a cell set, and reserved resource, as the repeating query resource of said cell set.

Get some (n _cIndividual) neighbor cell, as a cell set, and reserve a resource (n _PRBIndividual PRB), as the repeating query resource of each not enough minizone of edge resource in the cell set.

(2) when the public administration entity receives the edge resource deficiency information that the sub-district reports in the cell set, algorithm is preset in all sub-districts startups in the indicating cell group.

The public administration entity is provided with threshold T h _Dyn-start, and dispose and give all sub-districts in the cell set, wherein threshold value adopts empirical value.Edge customer is to edge resources occupation rate U in the sub-district _Edge＞Th _Dyn-start, the sub-district reports edge resource not enough to the public administration entity.In case one or more (n are arranged in the cell set _mIndividual, n _m≤n _c) sub-district reports edge resource not enough to the public administration entity, then all sub-districts start these algorithms in the public administration entity indicating cell group, and each sub-district will receive moment that public administration entity indication algorithm starts as TTI ₀

(3) calculate the round-robin order of repeating query resource through following method in the minizone that respectively reports the not enough information of edge resource:

Suppose that the time that the repeating query resource is applied to each sub-district is T, make T=kTTI, wherein k is a positive integer.Then in cell set, accomplish first resource repeating query process shown in the according to the form below.

Table 1

First row and secondary series in the last table can pass through the public administration physical arrangements and accomplish, and the public administration entity is given all sub-districts with this two row configuration alternatively or only disposed and give related cell.In the practical application, if the sub-district sequence number of (2) row in the table is known in the cell set on other sub-district correspondences in each sub-district, then each sub-district press following formula (1) and is calculated the current repeating query resource of judgement and belong to which adjacent area; If only there is the sub-district sequence number of local area the sub-district, then whether repeating query is to local area through the current SFN resource of computes; If the sub-district is not configured the sub-district sequence number, think that then pre-configured repeating query resource is unavailable.

That is to say; The cell ID that the public administration entity is not enough with all edge resource and the sub-district serial number information of resource repeating query dispose to all sub-districts; That is, give all sub-districts, or corresponding district is given in the independent configuration of the sub-district serial number information of cell ID that each edge resource is not enough and resource repeating query with all information configuration of row of first in the table 1 and secondary series; That is the information that, each row is corresponding in row of first in the table 1 and secondary series configuration is separately given corresponding district.The sub-district ID that wherein edge resource is not enough and the sub-district sequence number of resource repeating query should be one-to-one relationship.

When the sub-district serial number information of public administration entity cell ID that edge resource is not enough and resource repeating query disposed to all sub-districts, each sub-district calculated the sequence number of current repeating query resource home cell by following formula:

Wherein, current TTI is a current time, TTI ₀For all sub-districts of said public administration entity indication start moment of prefabricated algorithm, T is applied to time of each sub-district, n for the repeating query resource _mNumber for the not enough sub-district of edge resource in the said cell set;

When the sub-district serial number information of public administration entity cell ID that each edge resource is not enough and resource repeating query when corresponding district is given in configuration separately, current repeating query resource is calculated and ruled out in each sub-district by following formula (1), and whether this sub-district is arrived in repeating query;

When the sub-district is not configured the sub-district sequence number of resource repeating query, do not use the repeating query resource.

(4) the repeating query resource is used according to round-robin order in all sub-districts in the cell set.

Press the method among the embodiment three; With three sub-districts is example, and sub-district 0 has indicated its edge resource not enough with sub-district 1 to the public administration entity, and then each cell algorithm starts in the public administration entity indicating cell group; The moment 0 of the moment as (3) row in the table 1 will be somebody's turn to do in each sub-district; Fig. 3 is the sub-district repeating query sketch map in the embodiment of the invention three, shows resource repeating query between sub-district 0 and sub-district 1 like figure institute 3.

The horizontal line dash area is represented the repeating query resource reserved among Fig. 3, and diagonal line hatches is partly represented non-reserved resource.

To the different application of non-reserved resource, has following resource distribution mode.Fig. 4 is the different application situation sketch map to non-reserved resource in the embodiment of the invention three.

Among Fig. 4, central user can be used the diagonal line hatches partial-band, preferentially uses netted dash area frequency band; Edge customer can use horizontal line dash area and diagonal line hatches partial-band, and wherein, the user priority near cell edge uses horizontal line dash area frequency band.

Instance four

Instance four is for confirming a plurality of repeating query resources in advance among the present invention, the number of said a plurality of repeating query resources, and the concrete steps under each repeating query resource situation:

(1) get the neighbor cell of some, as a cell set, and reserved resource, as the repeating query resource of said cell set.

Get some (n _cIndividual) neighbor cell, as a cell set, and reserve a resource, as the repeating query resource of each not enough minizone of edge resource in the cell set.

(2) when said public administration entity receives the edge resource deficiency information that the sub-district reports in the said cell set, algorithm is preset in all sub-districts startups in the indicating cell group.

Threshold T h is set _Dyn-start, edge customer is to edge resources occupation rate U in the sub-district _Edge＞Th _Dyn-start, the sub-district reports edge resource not enough to the public administration entity.In case one or more (n are arranged in the cell set _mIndividual, n _m≤n _c) sub-district reports edge resource not enough to the public administration entity, then all sub-districts start these algorithms in the public administration entity indicating cell group, and each sub-district will receive moment that public administration entity indication algorithm starts as TTI ₀

(3) calculate the round-robin order of repeating query resource through following method in the minizone that respectively reports the not enough information of edge resource:

Suppose that the time that the repeating query resource is applied to each sub-district is T, make T=kTTI, wherein k is a positive integer.Then in cell set, accomplish first resource repeating query process shown in the according to the form below.Wherein, repeating query resource has expanded to n _RWhich Physical Resource Block piece by this sub-district repeating query Resource Block number, and specifically comprises in every resource, and according to the form below is shown in each not enough minizone circulation of edge resource in the cell set.

Table 2

First row and secondary series in the last table can pass through the public administration physical arrangements and accomplish, and the public administration entity is given all sub-districts with this two row configuration alternatively or only disposed and give related cell.The sub-district sequence number of (2) row in the table need be known in the cell set on other sub-district correspondences in each sub-district; Then current repeating query resource is confirmed by following formula (2) in each sub-district; Further; In conjunction with the sub-district sequence number computing formula of the resource repeating query of current correspondence, confirm local area with this Resource Block as edge resource, or do not use this resource.If the sub-district is not configured the sub-district sequence number, think that then to be calculated as follows the repeating query Resource Block that draws unavailable.

That is to say; The cell ID that the public administration entity is not enough with all edge resource and the sub-district serial number information of resource repeating query dispose to all sub-districts; That is, give all sub-districts, or corresponding district is given in the independent configuration of the sub-district serial number information of cell ID that each edge resource is not enough and resource repeating query with all information configuration of row of first in the table 1 and secondary series; That is the information that, each row is corresponding in row of first in the table 1 and secondary series configuration is separately given corresponding district.The sub-district ID that wherein edge resource is not enough and the sub-district sequence number of resource repeating query should be one-to-one relationship.

When the sub-district serial number information of public administration entity cell ID that edge resource is not enough and resource repeating query disposed to all sub-districts, each sub-district was calculated as follows out current repeating query resource:

Wherein, n _RNumber for the repeating query resource;

And be calculated as follows out the sequence number of current repeating query resource home cell:

When the sub-district serial number information of public administration entity cell ID that each edge resource is not enough and resource repeating query when configuration is to corresponding district separately, each sub-district is calculated as follows out current repeating query resource:

And whether repeating query is to this sub-district to be calculated as follows and to rule out current repeating query resource:

Wherein, n _mNumber for the not enough sub-district of edge resource in the said cell set;

When the sub-district is not configured the sub-district sequence number of resource repeating query, do not use the repeating query resource of the repeating query resource sequence number that is calculated as follows out

(4) said repeating query resource is used according to said round-robin order in the sub-district that reports the not enough information of edge resource in the cell set.

By the method among the embodiment four among the present invention; With three sub-districts is example, and sub-district 0 has indicated its edge resource not enough with sub-district 1 to the public administration entity, and then each cell algorithm starts in the public administration entity indicating cell group; The moment 0 of the moment as (3) row in the table 1 will be somebody's turn to do in each sub-district; Fig. 5 is the sub-district repeating query situation sketch map in the embodiment of the invention four, and is as shown in Figure 5, resource repeating query between sub-district 0 and sub-district 1.

The horizontal line dash area is represented the repeating query resource among Fig. 5, and diagonal line hatches is partly represented the non-repeating query resource of current time.

To the different application of non-reserved resource, the possible resource distribution mode and the embodiment of the invention three are said similar.Fig. 6 is the different application situation sketch map to non-reserved resource in the embodiment of the invention four.

Instance five

Instance five is the concrete steps of the number situation of the included continuous physical resource piece of this sub-district repeating query Resource Block among the present invention:

(1) get the neighbor cell of some, as a cell set, and reserved resource, as the repeating query resource of said cell set.

Get some (n _cIndividual) neighbor cell, as a cell set, and reserve a resource, as the repeating query resource of each not enough minizone of edge resource in the cell set.

(2) when said public administration entity receives the edge resource deficiency information that the sub-district reports in the said cell set, algorithm is preset in all sub-districts startups in the indicating cell group.

Threshold T h is set _Dyn-start, edge customer is to edge resources occupation rate U in the sub-district _Edge＞Th _Dyn-start, the sub-district reports edge resource not enough to the public administration entity.In case one or more (n are arranged in the cell set _mIndividual, n _m≤n _c) sub-district reports edge resource not enough to the public administration entity, then all sub-districts start these algorithms in the public administration entity indicating cell group, and each sub-district will receive moment that public administration entity indication algorithm starts as TTI ₀

(3) calculate the round-robin order of repeating query resource through following method in the minizone that respectively reports the not enough information of edge resource:

In order to obtain bigger frequency diversity gain, can use the selection that following process is accomplished the repeating query resource.Only confirm the included continuous PRB number of repeating query Resource Block in advance, and give all sub-districts in the cell set (2) row configuration of table 2.

Each sub-district in the cell set is calculated as follows out the sequence number of current repeating query resource home cell:

Each sub-district in the cell set is applied to initial moment of time of sub-district as the input of said random function with the repeating query resource, draw the original position of the employed repeating query Resource Block in sub-district that the current time repeating query arrives through said random function;

Current time not repeating query to the sub-district also make corresponding calculated, the resource block location of result of calculation indication is vacated, leave the sub-district that current repeating query arrives for and use.

Wherein, random function is to be used to generate a random number, and for example rand () can generate the random number between the 0-1, if be integer, just with int (rand () * 10), the integer of expression 0 to 9.Further, different according to the random function of selecting for use, can generate the random number that satisfies different distributions, for example Matlab can provide following random number generation function: the random number generator of poissrnd Poisson distribution; The random number generator of raylrnd rayleigh distributed; The discrete equally distributed random number generator of unidrnd etc.In instance of the present invention, can select suitable random function according to the practical implementation situation.

(4) the repeating query resource is used according to round-robin order in all sub-districts in the cell set.

The repeating query resource is used according to round-robin order in all sub-districts in the cell set, and the mode of its implementation and instance of the present invention three, four is basic identical.The difference of the repeating query resource that its difference is to use.Its repeating query resource mainly is the number decision through original position that calculates according to random function and predetermined repeating query Resource Block.

More than through embodiment 3-5 three kinds of diverse ways have been carried out detailed introduction, below other parts are carried out detailed introduction.

After this algorithm starts, because former edge resource possibly be compressed, if the thresholding Th when still starting with algorithm _Dyn-startJudge cell status, cause that probably the still sufficient sub-district of more edge resource gets into resource repeating query tabulation, therefore needs to start the back at algorithm and upgrades thresholding Th _Dyn-update, be used for starting the back and judge cell status at algorithm.

After presetting the algorithm startup, each sub-district is calculated according to following formula and is upgraded thresholding Th _Dyn-update, and with upgrading thresholding Th _Dyn-updateSubstitute threshold T h _Dyn-start

${\mathrm{Th}}_{\mathrm{Dyn}-\mathrm{update}}=\frac{{\mathrm{Th}}_{\mathrm{Dyn}-\mathrm{start}}\·n_{\mathrm{PRB}-\mathrm{edge}}}{n_{\mathrm{PRB}-\mathrm{edge}}-\frac{1}{3}{n}_{\mathrm{PRB}}}$

Wherein, n _PRB-edgeFor before this presets algorithm and start, system default is distributed to the PRB number of the edge customer of each sub-district, n _PRBPRB number for the repeating query resource.

In calculating process, also may exist the 1st in the table 1,2 row and the 2nd column information to change, promptly certain sub-district moves to reasons such as center of housing estate zone owing to edge customer service ending or edge customer, becomes the enough sub-districts of edge resource.

When the sub-district is judged as the edge resource deficiency, report the not enough information of edge resource to the public administration entity;

When the not enough sub-district of former edge resource is judged as edge resource when enough, report the enough information of edge resource to the public administration entity;

The public administration entity is when receiving the not enough information of edge resource and reporting any in the enough information of edge resource; The sub-district sequence number of the cell ID of updating edge inadequate resource and resource repeating query, and the not enough cell ID of the edge resource after will upgrading and the sub-district sequence number of resource repeating query are indicated to all sub-districts in the cell set;

Local preservation information is correspondingly upgraded in each sub-district, restart and preset algorithm, and the moment that will receive the renewal indication of public administration entity starts constantly as presetting algorithm.

When all sub-districts in the cell set all became the enough sub-district of edge resource, public administration entity all sub-districts indication algorithms in said cell set finished, and said each sub-district empties local information of preserving.

Simultaneously, in case cell set starts the Inter-Cell Interference Coordination algorithm among the present invention,, possibly cause the presence of intercell interference of sub-district outside sub-district and the cell set in the cell set then because the change of the method for using of frequency resource in the group.For addressing this problem; Can the related content of each minizone resource repeating query in the cell set be notified to the outer adjacent area of the group of cell set by the public administration entity; Organize outer adjacent area according to the information of each minizone resource repeating query in the said cell set with current repeating query resource vacate need not, finish up to presetting algorithm.Promptly look the algorithm specific embodiments by the public administration entity; Give the outer adjacent area of group of cell set with the said table 1 of preamble or table 2 context notification, organize outer adjacent area correspondingly, be similar in the group processing method of the sub-district that not repeating query arrives; Current repeating query resource vacate need not, algorithm finishes.

In sum; Relative prior art; The present invention need can not realize the dynamic interference coordination algorithm in the X2 interface interactive information, has avoided Load Information interacting message; That possibly cause and new presence of intercell interference other adjacent sub-district, and static resource is divided and can't be adapted to the unbalanced situation of minizone edge resource.Simultaneously, public administration physical arrangements of the present invention is simple, and mainly inner completion of fighting fiercely, operand is little in the calculating of algorithm.

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 made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.

Claims (10)

1. the disturbance coordination method of a minizone is characterized in that, this method comprises:

Get the neighbor cell of some, as a cell set, and reserved resource, as the repeating query resource of said cell set;

When said public administration entity received the edge resource deficiency information that the sub-district reports in the said cell set, algorithm was preset in all sub-districts startups in the indicating cell group;

All sub-districts go out the round-robin order of said repeating query resource in the minizone that respectively reports the not enough information of edge resource according to the said algorithm computation that presets in the said cell set;

Said repeating query resource is used according to said round-robin order in the sub-district that reports the not enough information of edge resource in the said cell set.

2. method according to claim 1 is characterized in that, said public administration entity receives the not enough information of edge resource that the sub-district reports in the said cell set and specifically comprises:

The public administration entity is provided with threshold T h _Dyn-start, and all sub-districts in the cell set are given in configuration;

Each sub-district in the said cell set with edge customer in this sub-district to edge resources occupation rate U _EdgeWith said threshold T h _Dyn-startCompare, work as U _Edge＞Th _Dyn-startThe time, this sub-district reports edge resource not enough to the public administration entity.

3. method according to claim 2 is characterized in that, this method further comprises:

After presetting the algorithm startup, each sub-district is calculated according to following formula and is upgraded thresholding Th _Dyn-update, and with upgrading thresholding Th _Dyn-updateSubstitute threshold T h _Dyn-start

${\mathrm{Th}}_{\mathrm{Dyn}-\mathrm{update}}=\frac{{\mathrm{Th}}_{\mathrm{Dyn}-\mathrm{start}}\·n_{\mathrm{PRB}-\mathrm{edge}}}{n_{\mathrm{PRB}-\mathrm{edge}}-\frac{1}{3}{n}_{\mathrm{PRB}}}$

Wherein, n _PRB-edgeFor before this presets algorithm and start, system default is distributed to the PRB number of the edge customer of each sub-district, n _PRBPRB number for the repeating query resource.

4. method according to claim 1 is characterized in that, said reserved resource comprises:

Confirm unique repeating query resource in advance;

Or, confirm a plurality of repeating query resources in advance, and the original position of each repeating query resource and included Physical Resource Block number;

Or, the number of the continuous physical resource piece that definite in advance repeating query resource is included.

5. method according to claim 4; It is characterized in that; When confirming unique repeating query resource in advance, all sub-districts go out the round-robin order of said repeating query resource in the minizone that respectively reports the not enough information of edge resource and comprise according to the said algorithm computation that presets in the said cell set:

The cell ID that said public administration entity is not enough with all edge resource and the sub-district serial number information of resource repeating query dispose to all sub-districts or with the cell ID of each edge resource deficiency and the sub-district serial number information of resource repeating query and dispose separately to corresponding district;

When the sub-district serial number information of said public administration entity cell ID that edge resource is not enough and resource repeating query disposed to all sub-districts, each sub-district calculated the sequence number of current repeating query resource home cell by following formula:

Wherein, current TTI is a current time, TTI ₀For all sub-districts of said public administration entity indication start moment of prefabricated algorithm, T is applied to time of each sub-district, n for the repeating query resource _mNumber for the not enough sub-district of edge resource in the said cell set;

When the sub-district serial number information of said public administration entity cell ID that each edge resource is not enough and resource repeating query when corresponding district is given in configuration separately, current repeating query resource is calculated and rule out in each sub-district, and whether this sub-district is arrived in repeating query by following formula;

When the sub-district is not configured the sub-district sequence number of resource repeating query, do not use the repeating query resource.

6. method according to claim 4; It is characterized in that; Confirm a plurality of repeating query resources when in advance; And when the original position of each repeating query resource and included Physical Resource Block number, all sub-districts go out the round-robin order of said repeating query resource in the minizone that respectively reports the not enough information of edge resource and comprise according to the said algorithm computation that presets in the said cell set:

The cell ID that said public administration entity is not enough with all edge resource and the sub-district serial number information of resource repeating query dispose to all sub-districts or with the cell ID of each edge resource deficiency and the sub-district serial number information of resource repeating query and dispose separately to corresponding district;

When the sub-district serial number information of said public administration entity cell ID that edge resource is not enough and resource repeating query disposed to all sub-districts, each sub-district was calculated as follows out current repeating query resource:

Wherein, n _RNumber for the repeating query resource;

And be calculated as follows out the sequence number of current repeating query resource home cell:

When the sub-district serial number information of said public administration entity cell ID that each edge resource is not enough and resource repeating query when configuration is to corresponding district separately, each sub-district is calculated as follows out current repeating query resource:

And whether repeating query is to this sub-district to be calculated as follows and to rule out current repeating query resource:

Wherein, n _mNumber for the not enough sub-district of edge resource in the said cell set;

When the sub-district is not configured the sub-district sequence number of resource repeating query, do not use the repeating query resource of the repeating query resource sequence number that is calculated as follows out

7. method according to claim 4; It is characterized in that; When confirming the number of the continuous physical resource piece that the repeating query Resource Block is included in advance, all sub-districts go out the round-robin order of said repeating query resource in the minizone that respectively reports the not enough information of edge resource and comprise according to the said algorithm computation that presets in the said cell set:

The cell ID that said public administration entity is not enough with edge resource and the sub-district sequence number of resource repeating query dispose to all sub-districts in the cell set, and select a random function, and all sub-districts in the cell set are given in configuration;

Each sub-district in the said cell set also is calculated as follows out the sequence number of current repeating query resource home cell:

Each sub-district in the said cell set is applied to initial moment of time of sub-district as the input of said random function with the repeating query resource, draw the original position of the employed repeating query Resource Block in sub-district that the current time repeating query arrives through said random function;

Current time not repeating query to the sub-district also make corresponding calculated, the resource block location of result of calculation indication is vacated, leave the sub-district that current repeating query arrives for and use.

8. according to claim 5,6 or 7 described methods, it is characterized in that this method further comprises:

When the sub-district is judged as the edge resource deficiency, report the not enough information of edge resource to the public administration entity;

When the not enough sub-district of former edge resource is judged as edge resource when enough, report the enough information of edge resource to the public administration entity;

The public administration entity is when receiving the not enough information of edge resource and reporting any in the enough information of edge resource; The sub-district sequence number of the cell ID of updating edge inadequate resource and resource repeating query, and the not enough cell ID of the edge resource after will upgrading and the sub-district sequence number of resource repeating query are indicated to all sub-districts in the cell set;

Local preservation information is correspondingly upgraded in each sub-district, restart and preset algorithm, and the moment that will receive the renewal indication of public administration entity starts constantly as presetting algorithm.

9. method according to claim 8 is characterized in that, this method further comprises:

When all sub-districts in the cell set all became the enough sub-district of edge resource, said public administration entity all sub-districts indication algorithms in said cell set finished, and said each sub-district empties local information of preserving.

10. method according to claim 1 is characterized in that, this method further comprises:

The public administration entity notifies the related content of each minizone resource repeating query in the cell set to the outer adjacent area of the group of cell set;

Said group of outer adjacent area according to the information of each minizone resource repeating query in the said cell set with current repeating query resource vacate need not, finish up to the said algorithm that presets.

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