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CN105578581B - A kind of method and device of resource allocation - Google Patents

A kind of method and device of resource allocation Download PDF

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Publication number
CN105578581B
CN105578581B CN201510977612.0A CN201510977612A CN105578581B CN 105578581 B CN105578581 B CN 105578581B CN 201510977612 A CN201510977612 A CN 201510977612A CN 105578581 B CN105578581 B CN 105578581B
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interference
small cell
cluster
parameter
small
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CN105578581A (en
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王友祥
孙乐
韩潇
马玥
范斌
赵亚兰
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04Transmission power control [TPC]
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • H04W52/244Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a kind of methods of resource allocation, are related to field of communication technology, can be effectively reduced the same layer interference that CRE user is subject to.The method include that determining connection relationship of the small minizone of every two in interference figure according to the interference parameter of each cell pair;It according to fixed connection relationship, is painted by the color of predetermined quantity to the cell in interference figure, and the cell with same color is determined as same small cell cluster;One of them small cell cluster is selected in fixed small cell cluster to interfere cluster, remaining small cell cluster is protection cluster;In protection cluster, all RB are distributed in a manner of poll all users, and, in interference cluster, ordinary user will be sequentially assigned to by SINR descending by the RB of all CRE user occupancies in protection cluster.The embodiment of the present invention is suitable for during heterogeneous network interference coordination.

Description

A kind of method and device of resource allocation
Technical field
The present invention relates to field of communication technology more particularly to a kind of method and devices of resource allocation.
Background technique
LTE-A has introduced many advanced technologies, such as CA (Carrier Aggregation, carrier wave polymerization), MIMO (Multi-input Multi-output, mimo antennas), CoMP (Coordinated Multiple Points, multiple spot Cooperation) etc..But due to power system capacity approximation theory value, so effect is not obvious.Therefore, heterogeneous network comes into being. Heterogeneous network is to joined some low power nodes, including femto base station under the traditional macro base station (macro) covering (Picocell), Home eNodeB (Femtocell), relaying (Relay) etc..These nodes are small in size, are convenient for flexible deployment, reduce Network overhead and operation cost are to solve indoor and hot spot scene capacity problem effective means.On the whole, they can be with The load for mitigating the base station macro, improves the performance of edge customer.
In order to allow user reasonably to access the base station macro or small cell, 3GPP proposition CRE (Cell Range Expansion, cell range extension) technology solves the problems, such as this, that is, allow the RSRP of the low power nodes that receive plus certain Bias, be then compared again with the RSRP of the base station macro received, if the former is big, force part macro User accesses low power nodes, this certain customers is also CRE user.Since a large amount of deployment of small cell are so that GRE user It is interfered by same layer extremely serious.
Summary of the invention
The embodiment of the present invention provides a kind of method and device of resource allocation, can be effectively reduced what CRE user was subject to Same layer interference.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
The embodiment of the invention provides a kind of methods of resource allocation, comprising:
Determine the interference sensor in each cell;
According to the interference information that the interference sensor is got, the interference parameter of each cell pair is determined;
According to the interference parameter of each cell pair, connection relationship of the small minizone of every two in interference figure is determined;
According to fixed connection relationship, painted by the color of predetermined quantity to the cell in interference figure, and Cell with same color is determined as same small cell cluster;Wherein, there is connection relationship in the interference figure after colouring Two cells have different colours;
One of them small cell cluster is selected in fixed small cell cluster to interfere cluster, remaining small cell cluster is protection Cluster;
In protection cluster, all RB are distributed in a manner of poll all users, and, it, will in interference cluster Ordinary user is sequentially assigned to by SINR descending by the RB of all CRE user occupancies in protection cluster.
The embodiment of the invention also provides a kind of devices of resource allocation, comprising:
First determination unit, for determining the interference sensor in each cell;
Second determination unit, the interference information for being got according to the interference sensor, determines each cell pair Interference parameter;
Third determination unit determines that the small minizone of every two is being interfered for the interference parameter according to each cell pair Connection relationship in figure;
Upper color element is used for according to fixed connection relationship, by the color of predetermined quantity to slight in interference figure It paints in area;
4th determination unit, for the cell with same color to be determined as same small cell cluster;Wherein, after colouring Interference figure in two cells with connection relationship have different colours;
Selecting unit, for selecting one of them small cell cluster to interfere cluster in fixed small cell cluster, remaining is small Cell cluster is protection cluster;
Allocation unit is used in protection cluster, all RB is distributed in a manner of poll all users, and, In interference cluster, ordinary user will be sequentially assigned to by SINR descending by the RB of all CRE user occupancies in protection cluster.
The method and device of resource allocation provided in an embodiment of the present invention, by determining interference according to same layer disturbed condition Cluster and protection cluster, and the transimission power of SBSs in interference cluster is reduced, it normal can be used in having little influence on interference cluster in this way In the case where family, effectively mitigate the same layer interference to CRE user in protection cluster.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.
Fig. 1 is a kind of method flow diagram of resource allocation provided in an embodiment of the present invention;
Fig. 2 is the method flow diagram of another resource allocation provided in an embodiment of the present invention;
Fig. 3 is a kind of composition block diagram of the device of resource allocation provided in an embodiment of the present invention;
Fig. 4 is the composition block diagram of the device of another resource allocation provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention provides a kind of method of resource allocation, it is applied to small cell cell and macro is macro In cell and the heterogeneous network deposited, as shown in Figure 1, comprising:
101, the interference sensor in each cell is determined.
In embodiments of the present invention, the CRE user for generally selecting channel quality best in each cell is as interference Sensor.
102, the interference information got according to the interference sensor, determines the interference parameter of each cell pair.
The concrete methods of realizing of the step 102 is as shown in Figure 2, comprising:
1021, in the same cell pair, respectively determine the first cell interference sensor and the second small cell it Between the first interference parameter, and, the second cell interference sensor and the first cell between the second interference parameter.
Wherein, the first and second cell belongs to the same cell pair;
1022, interference parameter of the greater of the first interference parameter and the second interference parameter as cell pair is selected.
103, according to the interference parameter of each cell pair, determine that connection of the small minizone of every two in interference figure is closed System.
Wherein, interference figure is to provide the instruction figure of cell interference relationships between any two,
In view of the internal small area interference of different cells has strong and weak difference, some needs to consider more by force, simultaneously Yet have some negligible interference.Therefore, the embodiment of the present invention provides a kind of determination side of connection relationship herein Method, specific as follows:
The size relation of step 1, the interference parameter for determining each cell pair and interference threshold.Be greater than when interference parameter or When equal to the interference threshold, 2 are thened follow the steps, it is no to then follow the steps 3.
Step 2, the cell for determining that the corresponding cell centering of interference parameter for being greater than interference threshold includes have connection Relationship.
Step 3, the cell for determining that the corresponding cell centering of interference parameter for being less than interference threshold includes do not have company Connect relationship.
104, according to fixed connection relationship, the cell in interference figure is carried out by the color of predetermined quantity Color, and the cell with same color is determined as same small cell cluster;Wherein, in the interference figure after colouring there is connection to close Two cells of system have different colours.
In embodiments of the present invention, it is painted, be can refer to the cell in interference figure by the color of predetermined quantity Four chromogens reason is indicated, therefore can produce four small cell clusters, and more face also can be set according to actual needs certainly Color indicates more small cell clusters.
105, one of them small cell cluster is selected in fixed small cell cluster to interfere cluster, remaining small cell cluster is to protect Protect cluster.
106, in protection cluster, all RB (resource block, resource block) are distributed to institute in a manner of poll Some users.
Wherein, all users may include CRE user and normal ordinary user, while require in different cells CRE user is not multiplexed identical user as far as possible.
107, it in interference cluster, will protect in cluster by RB being sequentially assigned to by SINR descending of all CRE user occupancies Ordinary user.
Simultaneously in order to be further reduced same layer interference, cell tune is carried out in the time domain the embodiment of the invention also provides a kind of The method of degree, specifically includes:
In the first subframe, small cell cluster A is selected to interfere cluster, remaining small cell cluster is protection cluster;
In the second subframe, small cell cluster B is selected to interfere cluster, remaining small cell cluster is protection cluster;
Wherein, the first subframe and the second subframe are two adjacent subframes, and small cell cluster A and small cell cluster B are different each other Small cell cluster.
For example, if small cell cluster 1 is set in the 1st and the 5th subframe time as interference using 8 subframes as a cycle Cluster;Small cell cluster 2 is set in the 2nd and the 6th subframe time to interfere cluster;It is set in the 3rd and the 5th 7 subframe time small Cell cluster 3 is interference cluster;Small cell cluster 4 is set in the 4th and the 8th subframe time to interfere cluster.In different subframes not by The small cell cluster for being selected as interference cluster is protection cluster.Meanwhile the small-cell base station in cluster being interfered to drop on the RB that CRE user uses Power protects the small-cell base station in cluster then to keep maximum transmission power on all holding resource blocks.By this flexible Scheduling scheme effectively mitigates same layer interference.
Based on the above-mentioned technical proposal, by determining that interference cluster and protection are thick according to same layer disturbed condition, and interference is reduced The transimission power of SBSs in cluster can effectively mitigate in having little influence on interference cluster in the case where normal user in this way Same layer interference to CRE user in protection cluster.
In addition, proposing the resource allocation optimization scheme of power domain to mitigate the cross-layer interference that CRE user is subject to.
When the transmission power of the base station macro is higher, the handling capacity of macro user is big, but be subject to due to CRE user Cross-layer serious interference, influences throughput of system;Conversely, when the transmission power of the base station macro is lower, the handling capacity of macro user It is smaller, but the cross-layer interference mitigation that CRE user is subject to, help to improve throughput of system.In order in macro user throughput A compromise point is obtained between the annoyance level that is subject to of CRE user, has introduced the design of game theory in embodiments of the present invention Thinking, to optimize the transmission power of each base station macro.
When carrying out the adjustment of macro base station power, can be used utility function as follows:The former is the reward function in relation to macro user throughput, and the latter is related CRE user The penalty of annoyance level.This is one using macro base station transmitting power as the optimization problem of independent variable, it is intended to be guaranteed It is taken into account while macro user throughput and reduces the cross-layer interference that CRE user is subject to, it, can be with by differential evolution optimization algorithm The transmission power of the base station macro optimized.
The embodiment of the invention also provides a kind of devices of resource allocation, as shown in Figure 3, comprising:
First determination unit 21, for determining the interference sensor in each cell.
Second determination unit 22, the interference information for being got according to the interference sensor, determines each cell Pair interference parameter.
Third determination unit 23 determines the small minizone of every two dry for the interference parameter according to each cell pair Disturb the connection relationship in figure.
Upper color element 24 is used for according to fixed connection relationship, by the color of predetermined quantity to small in interference figure Cell is painted.
4th determination unit 25, for the cell with same color to be determined as same small cell cluster;Wherein, it paints Two cells in interference figure afterwards with connection relationship have different colours.
Selecting unit 26, for selecting one of them small cell cluster to interfere cluster in fixed small cell cluster, remaining Small cell cluster is protection cluster.
Allocation unit 27, for all RB being distributed in a manner of poll all users in protection cluster, with And in interference cluster, ordinary user will be sequentially assigned to by SINR descending by the RB of all CRE user occupancies in protection cluster.
Optionally, first determination unit 21, the CRE for selecting channel quality best in each cell are used Family is as interference sensor.
Optionally, as shown in figure 4, second determination unit 22 includes:
First determining module 221, for determining the interference sensor of the first cell respectively in the same cell pair The first interference parameter between the second cell, and, between the interference sensor and the first cell of the second cell Second interference parameter;Wherein, the first and second cell belongs to the same cell pair;
Selecting module 222, for selecting the greater of the first interference parameter and the second interference parameter as cell pair Interference parameter.
Optionally, the third determination unit 23, for determining the interference parameter and interference threshold of each cell pair Size relation;When interference parameter is greater than or equal to the interference threshold, determine that the interference parameter for being greater than interference threshold is corresponding Cell centering include cell have connection relationship;When interference parameter is less than the interference threshold, determines to be less than and do It disturbs the cell that the corresponding cell centering of interference parameter of threshold value includes and does not have connection relationship.
Optionally, the 4th determination unit 25, in the first subframe, selecting small cell cluster A to interfere cluster, Remaining small cell cluster is protection cluster;In the second subframe, small cell cluster B is selected to interfere cluster, remaining small cell cluster is protection cluster.
Wherein, the first subframe and the second subframe are two adjacent subframes, and small cell cluster A and small cell cluster B are different each other Small cell cluster.
Based on the method flow that above-mentioned apparatus is realized, by determining that interference cluster and protection are thick according to same layer disturbed condition, And reduce interference cluster in SBSs transimission power, in this way can have little influence on interference cluster in normal user in the case where, Effectively mitigate the same layer interference to CRE user in protection cluster.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can borrow Help software that the mode of required common hardware is added to realize, naturally it is also possible to which the former is more preferably by hardware, but in many cases Embodiment.Based on this understanding, the portion that technical solution of the present invention substantially in other words contributes to the prior art Dividing can be embodied in the form of software products, which stores in a readable storage medium, such as count The floppy disk of calculation machine, hard disk or CD etc., including some instructions are used so that computer equipment (it can be personal computer, Server or the network equipment etc.) execute method described in each embodiment of the present invention.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims (10)

1.一种资源分配的方法,其特征在于,包括:1. A method for resource allocation, comprising: 确定各个小小区内的干扰传感器;Determine the interference sensors in each small cell; 根据所述干扰传感器获取到的干扰信息,确定每个小小区对的干扰参数;Determine the interference parameter of each small cell pair according to the interference information obtained by the interference sensor; 根据每个小小区对的干扰参数,确定每两个小小区间在干扰图中的连接关系;According to the interference parameters of each small cell pair, determine the connection relationship between each two small cells in the interference graph; 根据已确定的连接关系,通过预定数量的颜色对干扰图内的小小区进行上色,并将具有同样颜色的小小区确定为同一小小区簇;其中,上色后的干扰图中具有连接关系的两个小小区具有不同颜色;According to the determined connection relationship, the small cells in the interference map are colored by a predetermined number of colors, and the small cells with the same color are determined as the same small cell cluster; wherein, the colored interference map has a connection relationship The two small cells have different colors; 在已确定的小小区簇中选择其中一个小小区簇为干扰簇,其余小小区簇为保护簇;In the determined small cell clusters, select one of the small cell clusters as the interference cluster, and the remaining small cell clusters as the protection clusters; 在保护簇中,把所有的RB以轮询的方式分配给所有的用户,以及,在干扰簇中,将保护簇中被所有CRE用户占用的RB按SINR降序的顺序分配给普通用户;In the protection cluster, all RBs are allocated to all users in a polling manner, and, in the interference cluster, the RBs occupied by all CRE users in the protection cluster are allocated to ordinary users in descending order of SINR; 其中,所述小小区对包含两个不同的小小区。Wherein, the small cell pair includes two different small cells. 2.根据权利要求1所述的方法,其特征在于,所述确定各个小小区内的干扰传感器包括:2. The method according to claim 1, wherein the determining the interference sensor in each small cell comprises: 在每个小小区中选择信道质量最好的CRE用户作为干扰传感器。In each small cell, the CRE user with the best channel quality is selected as the interference sensor. 3.根据权利要求1所述的方法,其特征在于,所述根据所述干扰传感器获取到的干扰信息,确定每个小小区对的干扰参数包括:3. The method according to claim 1, wherein the determining the interference parameter of each small cell pair according to the interference information obtained by the interference sensor comprises: 在同一个小小区对中,分别确定第一小小区的干扰传感器与第二小小区之间的第一干扰参数,以及,第二小小区的干扰传感器与第一小小区之间的第二干扰参数;其中,第一、二小小区属于同一个小小区对;In the same small cell pair, respectively determine the first interference parameter between the interference sensor of the first small cell and the second small cell, and the second interference between the interference sensor of the second small cell and the first small cell parameter; wherein, the first and second small cells belong to the same small cell pair; 选择第一干扰参数和第二干扰参数的较大者作为小小区对的干扰参数。The larger of the first interference parameter and the second interference parameter is selected as the interference parameter of the small cell pair. 4.根据权利要求1所述的方法,其特征在于,所述根据每个小小区对的干扰参数,确定每两个小小区间在干扰图中的连接关系包括:4. The method according to claim 1, wherein, according to the interference parameter of each small cell pair, determining the connection relationship between every two small cells in the interference graph comprises: 确定每个小小区对的干扰参数与干扰阈值的大小关系;Determine the relationship between the interference parameter of each small cell pair and the interference threshold; 当干扰参数大于或等于所述干扰阈值时,确定大于干扰阈值的干扰参数对应的小小区对中包含的小小区具有连接关系;When the interference parameter is greater than or equal to the interference threshold, it is determined that the small cells included in the pair of small cells corresponding to the interference parameter greater than the interference threshold have a connection relationship; 当干扰参数小于所述干扰阈值时,确定小于干扰阈值的干扰参数对应的小小区对中包含的小小区不具有连接关系。When the interference parameter is smaller than the interference threshold, it is determined that the small cells included in the pair of small cells corresponding to the interference parameter smaller than the interference threshold do not have a connection relationship. 5.根据权利要求1所述的方法,其特征在于,所述在已确定的小小区簇中选择其中一个小小区簇为干扰簇,其余小小区簇为保护簇包括:5. The method according to claim 1, wherein the selecting one of the small cell clusters as the interference cluster from the determined small cell clusters, and the remaining small cell clusters as the protection clusters comprises: 在第一子帧中,选择小小区簇A为干扰簇,其余小小区簇为保护簇;In the first subframe, the small cell cluster A is selected as the interference cluster, and the remaining small cell clusters are selected as the protection clusters; 在第二子帧中,选择小小区簇B为干扰簇,其余小小区簇为保护簇;In the second subframe, the small cell cluster B is selected as the interference cluster, and the remaining small cell clusters are the protection clusters; 其中,第一子帧和第二子帧为相邻的两个子帧,小小区簇A与小小区簇B互为不同的小小区簇。The first subframe and the second subframe are two adjacent subframes, and the small cell cluster A and the small cell cluster B are mutually different small cell clusters. 6.一种资源分配的装置,其特征在于,包括:6. A device for resource allocation, comprising: 第一确定单元,用于确定各个小小区内的干扰传感器;a first determining unit, configured to determine interference sensors in each small cell; 第二确定单元,用于根据所述干扰传感器获取到的干扰信息,确定每个小小区对的干扰参数;a second determining unit, configured to determine the interference parameter of each small cell pair according to the interference information obtained by the interference sensor; 第三确定单元,用于根据每个小小区对的干扰参数,确定每两个小小区间在干扰图中的连接关系;a third determining unit, configured to determine the connection relationship between each two small cells in the interference graph according to the interference parameter of each small cell pair; 上色单元,用于根据已确定的连接关系,通过预定数量的颜色对干扰图内的小小区进行上色;a coloring unit for coloring the small cells in the interference map with a predetermined number of colors according to the determined connection relationship; 第四确定单元,用于将具有同样颜色的小小区确定为同一小小区簇;其中,上色后的干扰图中具有连接关系的两个小小区具有不同颜色;a fourth determining unit, configured to determine small cells with the same color as the same small cell cluster; wherein, two small cells with a connection relationship in the colored interference graph have different colors; 选择单元,用于在已确定的小小区簇中选择其中一个小小区簇为干扰簇,其余小小区簇为保护簇;a selection unit, configured to select one of the small cell clusters as the interference cluster among the determined small cell clusters, and the remaining small cell clusters as the protection clusters; 分配单元,用于在保护簇中,把所有的RB以轮询的方式分配给所有的用户,以及,在干扰簇中,将保护簇中被所有CRE用户占用的RB按SINR降序的顺序分配给普通用户;The allocation unit is used for allocating all RBs to all users in a round-robin manner in the protection cluster, and, in the interference cluster, allocating the RBs occupied by all CRE users in the protection cluster in descending order of SINR to general user; 其中,所述小小区对包含两个不同的小小区。Wherein, the small cell pair includes two different small cells. 7.根据权利要求6所述的装置,其特征在于,所述第一确定单元,用于在每个小小区中选择信道质量最好的CRE用户作为干扰传感器。7 . The apparatus according to claim 6 , wherein the first determining unit is configured to select a CRE user with the best channel quality in each small cell as an interference sensor. 8 . 8.根据权利要求6所述的装置,其特征在于,所述第二确定单元包括:8. The apparatus according to claim 6, wherein the second determining unit comprises: 第一确定模块,用于在同一个小小区对中,分别确定第一小小区的干扰传感器与第二小小区之间的第一干扰参数,以及,第二小小区的干扰传感器与第一小小区之间的第二干扰参数;其中,第一、二小小区属于同一个小小区对;The first determining module is configured to determine, in the same small cell pair, the first interference parameter between the interference sensor of the first small cell and the second small cell, and the interference sensor of the second small cell and the first small cell respectively. the second interference parameter between cells; wherein the first and second small cells belong to the same small cell pair; 选择模块,用于选择第一干扰参数和第二干扰参数的较大者作为小小区对的干扰参数。The selection module is configured to select the larger one of the first interference parameter and the second interference parameter as the interference parameter of the small cell pair. 9.根据权利要求6所述的装置,其特征在于,所述第三确定单元,用于确定每个小小区对的干扰参数与干扰阈值的大小关系;当干扰参数大于或等于所述干扰阈值时,确定大于干扰阈值的干扰参数对应的小小区对中包含的小小区具有连接关系;当干扰参数小于所述干扰阈值时,确定小于干扰阈值的干扰参数对应的小小区对中包含的小小区不具有连接关系。9 . The apparatus according to claim 6 , wherein the third determining unit is configured to determine the magnitude relationship between the interference parameter of each small cell pair and the interference threshold; when the interference parameter is greater than or equal to the interference threshold When the interference parameter is larger than the interference threshold, it is determined that the small cells included in the small cell pair corresponding to the interference parameter have a connection relationship; when the interference parameter is smaller than the interference threshold, it is determined that the small cell included in the small cell pair corresponding to the interference parameter smaller than the interference threshold has a connection relationship. Does not have a connection relationship. 10.根据权利要求6所述的装置,其特征在于,所述第四确定单元,用于在第一子帧中,选择小小区簇A为干扰簇,其余小小区簇为保护簇;在第二子帧中,选择小小区簇B为干扰簇,其余小小区簇为保护簇;10 . The apparatus according to claim 6 , wherein the fourth determining unit is configured to, in the first subframe, select the small cell cluster A as the interference cluster, and the remaining small cell clusters as the protection clusters; 10 . In the second subframe, the small cell cluster B is selected as the interference cluster, and the remaining small cell clusters are selected as the protection clusters; 其中,第一子帧和第二子帧为相邻的两个子帧,小小区簇A与小小区簇B互为不同的小小区簇。The first subframe and the second subframe are two adjacent subframes, and the small cell cluster A and the small cell cluster B are mutually different small cell clusters.
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