CN101018220B - Implementation method and device for avoiding the interference between the cells - Google Patents

Implementation method and device for avoiding the interference between the cells Download PDF

Info

Publication number
CN101018220B
CN101018220B CN 200610009117 CN200610009117A CN101018220B CN 101018220 B CN101018220 B CN 101018220B CN 200610009117 CN200610009117 CN 200610009117 CN 200610009117 A CN200610009117 A CN 200610009117A CN 101018220 B CN101018220 B CN 101018220B
Authority
CN
China
Prior art keywords
interference
cell
frequency
user
occupied
Prior art date
Application number
CN 200610009117
Other languages
Chinese (zh)
Other versions
CN101018220A (en
Inventor
杜高科
沈嘉
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN 200610009117 priority Critical patent/CN101018220B/en
Publication of CN101018220A publication Critical patent/CN101018220A/en
Application granted granted Critical
Publication of CN101018220B publication Critical patent/CN101018220B/en

Links

Abstract

The related method preventing subzone interference comprises: allocating corresponding frequency resource for subzone edge users applying interference coordination and interference elimination respectively, exactly, the frequency resource can be allocated in advance, or allocated when system business loading changes and satisfies a certain condition; then, adjusting the frequency resource for eliminating and coordinating interference. This invention makes full of two ways for avoiding interference, adds system flexibility, and supports wide business request.

Description

避免小区间出现干扰的实现方法及装置 Implementation method and apparatus to avoid inter-cell interference occurs

技术领域 FIELD

[0001] 本发明涉及无线通信技术领域,尤其涉及一种消除小区间干扰的技术。 [0001] The present invention relates to wireless communication technologies, and in particular relates to a technique for inter-cell interference cancellation.

[0002] 背景技术 [0002] BACKGROUND OF THE INVENTION

[0003] 目前,在无线通信系统中基于多载波的0FDM(正交频分复用)技术越来越受到业界的关注。 [0003] Currently, in a wireless communication system using multi-carrier 0FDM (orthogonal frequency-division multiplexing) technology more and more attention in the industry. OFDM技术的基本思想是将无线通信系统的时频资源在频域内分为若干正交的窄带子信道,高速数据流通过串并变换在各个子信道上并行传输。 The basic idea of ​​OFDM technology is a wireless communication system is divided into narrowband frequency resource in a number of orthogonal subchannels in the frequency domain, a high-speed serial data stream and converting the parallel transmissions on each subchannel. 由于子信道的窄带特性可以克服多径影响,保持子信道之间的正交性,从而保证了小区内部用户之间的干扰很小。 Since the characteristics of narrowband subchannels may overcome multipath affect and maintain the orthogonality between sub-channels, thereby ensuring minimal interference between the cells inside the user.

[0004] OFDM技术的优点是可以保证小区内部用户的信号之间是正交的,避免小区内部用户之间的干扰。 Advantage of [0004] OFDM technology is guaranteed between the internal cells are orthogonal user signals, interference between cells to avoid internal users. 但是,OFDM技术的小区之间仍然存在干扰,即对于处于小区边界的用户,其仍可能受到相邻小区发送的信号的干扰。 However, there is still inter-cell interference OFDM technology, i.e., the user at the cell border, it is still likely to be an interference signal transmitted by neighboring cells.

[0005] 为了解决所述的小区间干扰,便提出两种解决方案,即干扰协调(Interf erence Co-ordination)的实现方案和干扰消除(Interference Cancellation)的实现方案,以避免小区间出现干扰。 [0005] In order to solve the inter-cell interference, have proposed two solutions, i.e. interference coordination (Interf erence Co-ordination) implementations and interference cancellation (Interference Cancellation) implementations, in order to avoid inter-cell interference occurs.

[0006] 下面将分别对两方案的实现方式进行说明。 [0006] The following are two implementations of the embodiment will be described.

[0007] (1)干扰协调的实现方案 [0007] (1) achieve interference coordination scheme

[0008] 该方案中,是对频率资源进行划分,并将不同的频率资源分配给不同小区的处于小区边界的用户,从而可以使得处于小区边界的用户之间的干扰较少。 [0008] In this embodiment, the frequency resource is divided, and different frequency resources allocated to different cells in a cell-boundary users, so that the interference between users may be at the cell boundary less. 其中,对于优先分配给每个小区的用于边界用户的频率称为这个小区的主频率,该小区的其它的频率称为次频率。 Wherein the priority assigned to each of the frequencies for cell edge users is called a primary frequency of this cell, the frequency of the other sub-cell is referred to as frequency.

[0009] 在所述的干扰协调方案中,相邻小区的边界用户需要使用不同的主频率以避免小区间干扰,实现频率重用因子大于1,次频率可以分配给小区中心用户使用,频率重用因子为1。 [0009] In the interference coordination schemes, a neighboring cell edge users need to use different primary frequency to avoid inter-cell interference, achieve frequency reuse factor greater than 1, times the frequency can be assigned to cell center users, frequency reuse factor 1. 但是,在该方法中,对于某一小区,小区边界用户的可使用的子载波数量有限,因此局限了该小区边界用户峰值速率和吞吐量,对于某些特定的情况,由于频率资源的限制导致无法满足通信的需求,例如,当相邻小区边界用户数量很多或者小区边界存在高峰值速率业务需求时,则分配给小区边界用户的有限频率资源将无法满足相应的需求。 However, in this method, a limited number of subcarriers for a cell, the cell edge users may be used, and therefore limits the peak rate of the cell edge user throughput and, for certain cases, due to limitations of the frequency resources leads Unable to meet the communication needs, for example, when there is a peak rate service needs a lot number of neighboring cell border or cell boundary, the limited frequency resources allocated to the cell edge users will be unable to meet the corresponding requirements.

[0010] (2)干扰消除的实现方案 [0010] (2) interference cancellation scheme implemented

[0011] 该方法为:当相邻小区占用相同频率资源的用户互相干扰时,每个用户首先将干扰信号进行解调和解码,并将恢复出来的干扰信号从接收信号中分离除去,以提高对所需信号的解调和解码的正确率。 [0011] The method is: when the adjacent cells occupy the same frequency resources to users interfere with each other, each of the first user interference signal is demodulated and decoded, and the interference signal recovered from the received signal is separated and removed, in order to improve and accuracy required for decoding the demodulated signal.

[0012] 在进行干扰检测分离的过程中,需要接收用户知道来自于相邻小区的干扰用户的信号配置情况,包括调制编码方式、FEC (前向纠错)方式和编码速率等,这些信息均需要额外的大量信令通知相应用户,这必然会增加系统的负载和复杂度。 Process [0012] The isolated during the interference detection, the user needs to know the received signal from the user configuration of neighboring interfering cells, comprising the modulation and coding scheme, FEC (Forward Error Correction) scheme and coding rate, etc., such information is It requires a large number of additional signaling the user, which necessarily increases the load and complexity of the system.

[0013] 鉴于以上两种避免小区间干扰的实现方案存在的优点及缺点,目前还提出了将干扰协调的实现方案与干扰消除的实现方案相结合的避免小区间干扰的实现方法。 [0013] In view of the advantages and disadvantages of two or more implementations to avoid inter-cell interference exists, there is method of implementing the inter-cell interference avoiding interference coordination and implementation of the interference cancellation scheme implemented in combination. 其中,首先将所有用户划分为小区中心用户和小区边界用户,如图1所示:图中的灰色六边形区域的部分可以使用所有的频率资源,频率重用因子为1 ;图中的以条格、点状和空白标示的部 Wherein, first of all users into cell center and cell edge users, shown in Figure 1: the gray portion in FIG hexagonal area may be used in all of the frequency resources, the frequency reuse factor 1; FIG strip to lattice, dot and blank portions indicated

5分代表小区边界用户采用干扰协调频率规划的方法,频率重用因子大于1。 5 points representative of cell edge users using interference coordination method of frequency planning, frequency reuse factor greater than 1.

[0014] 另外,图1中的圆形的灰色区域标示的部分代表小区边界用户使用干扰检测并分离的方法,占用所有的子载波使频率重用因子为一。 [0014] Further, some representatives of the cell edge users in a circular gray area in FIG. 1 indicated using the interference detection and separation methods, all subcarriers occupy a frequency reuse factor one. 这些小区边界用户是采用相同位置相同大小的频率资源块(Chunk)进行干扰消除的,Chunk的定义为在时间上连续的几个符号在频率上连续的一些子载波。 The cell edge users are using the same frequency resource block size the same position (the Chunk) interference cancellation, Chunk is defined as the time in several consecutive symbols in a number of consecutive frequency subcarriers.

[0015] 上述两方案结合的实现方法的优势在于通过频分将相邻小区的干扰避免或降低到最小,有效的提高了小区边界用户的SIR(信号干扰比),并具有较低的实现复杂度。 [0015] The method to achieve the advantage of the combined solution is characterized by frequency division of neighboring cells interfering avoided or minimized, effectively improve cell edge users SIR (Signal to Interference Ratio), and has low implementation complexity degree.

[0016] 但是,在上述技术方案中没有根据每个小区具体的系统负载情况来设计详细的资源分配方法,如果不同负载情况的相邻小区采用相同的资源分配方式和比例,则对于有限物理资源的利用并没有得到合理的安排,系统的吞吐量也受到了限制。 [0016] However, no detailed design of each resource allocation method according to the particular cell system load in the above aspect, if the neighboring cells of different load conditions of the same resource allocation and proportions, for the limited physical resources use and do not get reasonable throughput scheduled, the system is also limited.

[0017] 另外,上述技术方案中也没有给出具体的物理资源决和编码块以及进行干扰检测消除的资源块之间的关系,如果假设映射与Chunk大小相同的编码块来进行编码,这样才可以从相同位置相同大小的Chunk上进行“双用户检测”或者“多用户检测,,来恢复干扰信号并将其分离,如果编码块的大小映射到物理资源不是一个Chunk大小时,例如为Chunk 大小的2倍时,如果还以Chunk为单位来进行干扰消除,则当进行解调和解码时,被干扰的Chunk只包含干扰块的一部分的干扰块,使得无法对干扰信号进行正确的解码和检测,也就无法恢复和去除这部分的干扰信号。 [0017] Further, the above technical solution also did not give a physical resource block and the coding decisions and the relationship between the resource blocks is performed to eliminate interference detection, if the mapping is the same Chunk coding block size is assumed to be encoded, so that it may be "dual-user detection" or "multi-user detection on the same size from the same position to restore the interference signal Chunk ,, and separating, if the size of the coding block is not mapped to a physical resource Chunk size, for example Chunk size when 2 times, if it is in Chunk interference cancellation units, when the demodulated and decoded, Chunk interfered interference block contains only part of the interference block so that the interference signals can not be correctly detected and decoded and are unable to recover and remove unwanted signals this section.

[0018] 总之,上述现有技术的实现方案仍然存在一些问题,使得无法有效避免无线通信系统中可能出现的干扰。 [0018] In summary, the above-described prior art implementations are still some problems, making it impossible to effectively avoid interference with the wireless communication system may occur.

[0019] 发明内容 [0019] SUMMARY OF THE INVENTION

[0020] 本发明的目的是提供一种避免小区间出现干扰的实现方法及装置,使得干扰协调的实现方案与干扰消除的实现方案之间可以有效实现优势互补,从而有效避免无线通信系统中可能出现的干扰。 [0020] The object of the present invention is to provide a method and apparatus implemented to avoid inter-cell interference occurs, making it possible to effectively achieve interference coordination between the implementation and realization of complementary interference cancellation, so as to effectively prevent the radio communication system may the occurrence of interference.

[0021] 本发明的目的是通过以下技术方案实现的: [0021] The object of the present invention is achieved by the following technical solution:

[0022] 本发明提供了一种避免小区间出现干扰的实现方法,包括: [0022] The present invention provides a method for implementing avoid inter-cell interference occurs, comprising:

[0023] 分别为使用干扰协调小区边界用户和使用干扰消除的小区边界用户分配相应的频率资源作为用于干扰消除和干扰协调占用的频率资源,并动态调整用于干扰消除和干扰协调占用的频率资源; Respective cell edge users allocating frequency resources [0023] are coordinated cell edge users and interference is to use interference cancellation as a interference cancellation and frequency resources occupied by the interference coordination, and interference cancellation for dynamically adjusting the frequency and interference coordination occupied resources;

[0024] 其中,所述分别为使用干扰协调小区边界用户和使用干扰消除的小区边界用户分配相应的频率资源作为用于干扰消除和干扰协调占用的频率资源具体包括: Cell edge users [0024] wherein each said coordinating interference at the cell border and use of interference cancellation allocated as frequency resources for the respective interference cancellation frequency resources occupied coordination and interference comprises:

[0025] 将所有可用频率资源中的一部分分配给使用干扰消除的小区边界用户作为用于干扰消除占用的频率资源,且该频率资源相邻小区用户共用; [0025] A portion of all available frequency resources allocated to the cell edge users using interference cancellation as a frequency resource occupied by the interference cancellation, and the neighboring cell users share a frequency resource;

[0026] 将其余的可用频率资源划分为主频率和次频率,其中,主频率优先分配给用于干扰协调的小区边界用户作为干扰协调占用的频率资源,次频率分配给小区中心用户; [0026] The remaining frequency resources available frequency resources into a main and a secondary frequency frequency, wherein the cell edge users preferentially allocated to the primary frequency interference coordination for interference coordination as occupied, secondary frequencies are allocated to the cell center users;

[0027] 或者,所述分别为使用干扰协调小区边界用户和使用干扰消除的小区边界用户分配相应的频率资源作为用于干扰消除和干扰协调占用的频率资源具体包括: [0027] Alternatively, the cell edge users are coordinated cell edge users and interference cancellation using the interference as a frequency resource allocated for the respective interference cancellation frequency resources occupied coordination and interference comprises:

[0028] 将所有可用频率资源划分为主频率和次频率,其中,主频率优先分配给小区边界用户作为干扰协调占用的频率资源,次频率分配给小区中心用户; [0028] all of the available frequency resources into a main frequency and a secondary frequency, wherein the frequency of the main frequency resources preferentially allocated to the cell edge users as interference coordination occupied times the frequency assigned to cell center users;

[0029] 当出现小区边界用户达到预定的数量值或者小区边界存在峰值速率需求达到预定的值时,则从所述主频率划分出一部分作为干扰消除占用的频率资源,并与相邻小区共同使用该频率资源;所述动态调整用于干扰消除和干扰协调占用的频率资源,具体包括: 动态调整所述的用于干扰检测消除和干扰协调占用的频率资源。 [0029] When the cell edge users appear to reach a peak value of the rate of demand reaches a predetermined value or a predetermined number of cell boundary, from the primary frequency interference cancellation as part of partitioned frequency resources occupied, and used in conjunction with the adjacent cell the frequency resource; interference cancellation for dynamically adjusting the frequency resources occupied coordination and interference comprises: dynamically adjusting the frequency resources and interference detection to eliminate interference coordination occupied for.

[0030] 所述的方法包括: [0030] said method comprising:

[0031] 用于干扰消除的包含一组连续子载波的干扰消除资源块包含至少一个完整的编码块,并在相同位置上,由整数倍的连续的物理资源块构成。 Interference [0031] for interference cancellation comprises a set of contiguous subcarriers eliminate resource block comprises at least one complete coded block, and at the same position, is composed of consecutive physical resource blocks is an integer multiple.

[0032] 所述的方法包括: [0032] said method comprising:

[0033]当某一用户的原始信息传输块大于预定的值时,则将用户原始的传输块分割成多个编码块,令每个编码块的大小与干扰消除资源块相对应。 [0033] When a user of the original information block is larger than a predetermined value is transmitted, the user is the original transport block into a plurality of coding blocks so that every coding block size and the interference canceling blocks corresponding resource.

[0034] 所述的方法包括: [0034] said method comprising:

[0035] 针对用于干扰协调占用的频率资源的调整是通过不同的时频图案区分不同小区边界用户占用的资源实现。 [0035] The adjustment for the frequency resource occupied for interference coordination is to distinguish between the different resources occupied by the user to achieve a cell boundary through different pilot pattern.

[0036] 所述的方法包括: [0036] said method comprising:

[0037] 针对用于干扰检测消除占用的频率资源的调整是通过不同的时频图案与用于干扰协调的频率资源进行区分实现。 [0037] For adjusting the frequency resource occupied for eliminating the interference is detected by the pilot pattern with a different frequency resources for interference coordination distinguish achieved.

[0038] 所述的方法包括: [0038] said method comprising:

[0039] 用于干扰检测消除占用的资源块采用不同的调制编码模式,或者采用相同的调制编码方式。 Resource blocks [0039] for detecting the interference elimination occupied employ a different modulation coding mode, or to use the same modulation and coding scheme.

[0040] 所述的方法还包括:当相邻小区用于干扰消除的资源块采用不同的调制编码方式时,需要将干扰用户的配置信息通知被干扰用户。 [0040] The method further comprises: when the adjacent cell interference cancellation for resource blocks with different modulation and coding scheme, needs to be configured to inform the user of the interference is the interference user.

[0041] 本发明中,将干扰用户的配置信息通知被干扰用户的过程包括: [0041] In the present invention, the configuration information notification process of the interference user is disturbed user comprises:

[0042] 干扰小区基站通知被干扰小区基站干扰用户的配置信息,再由被干扰小区基站将此信息通知被干扰的用户; [0042] The interfering base station notifies the interfering cell interference cell base station configuration information of the user, the user then notifies the base station of this cell interference information is interfered;

[0043]或者, [0043] Alternatively,

[0044] 干扰小区基站通知被干扰小区基站干扰用户的身份信息,再由被干扰小区基站根据所述身份信息将对应的干扰用户的配置信息通知被干扰用户。 [0044] The interfering base station notifies the cell base station interfering cell identity information of the user interference, then the base station is interfered cell interference according to the configuration information of the user identification information corresponding to the notification of the interfering users.

[0045] 所述的用于干扰协调占用的频率资源,设置为能够根据相邻小区不同的负载需求情况在相邻小区之间进行调整。 [0045] The frequency resource occupied for interference coordination, setting can be adjusted between adjacent cells of adjacent cells depending on the load demand.

[0046] 所述的动态调整具体包括: [0046] The dynamically adjusting comprises:

[0047] 在小区中,根据小区边界的用户数量或者小区边界用户的业务需求情况对小区中已经分配的用于干扰消除和干扰协调占用的频率资源进行调整。 [0047] in a cell, according to the service needs of the user or the number of cell edge users of a cell boundary and removes the frequency resources occupied by the cell interference coordination has been assigned for interference adjustment.

[0048] 本发明还提供了一种避免小区间出现干扰的实现装置,包括: [0048] The present invention further provides an apparatus for implementing avoid inter-cell interference occurs, comprising:

[0049] 频率资源分配模块:用于分别为干扰协调和干扰消除的小区边界用户确定相应的频率资源作为用于干扰消除和干扰协调占用的频率资源; [0049] The frequency resource allocation module: for each of interference coordination and interference cancellation for cell edge users as to determine the corresponding frequency resource for interference cancellation and frequency resources occupied interference coordination;

[0050] 频率调整模块:用于动态调整所述的用于干扰消除和干扰协调占用的频率资源; 其中,所述的频率资源分配模块具体包括: [0050] The frequency adjustment module: for dynamically adjusting the frequency resource and eliminating the interference for interference coordination occupied; wherein the frequency resource allocation module comprises:

[0051] 干扰消除频率资源分配模块:用于将小区的频率资源中的一部分分配给用于为干扰消除的小区边界用户作为用于干扰消除占用的频率资源,且该频率资源与相邻小区用户共用;[0052] 干扰协调频率资源分配模块:用于将小区的另一部分频率资源划分为主频率和次频率,其中,主频率优先分配给用于干扰协调小区边界用户作为干扰协调占用的频率资源, 次频率分配给小区中心用户; [0051] interference cancellation frequency resource allocation module: part for allocating frequency resources in the cell used for the cell edge users to eliminate interference as interference cancellation for the frequency resources occupied by the user of the cell and the adjacent frequency resources common; [0052] frequency resource allocation module interference coordination: another portion of a cell for the frequency resources and frequency divided into a main secondary frequency, wherein the frequency of the main frequency resources allocated to a priority for the cell edge users as interference coordination interference coordination occupied , secondary frequencies are allocated to the cell center users;

[0053] 或者,所述的频率资源分配模块具体包括: [0053] Alternatively, the frequency resource allocation module comprises:

[0054] 干扰协调频率资源分配模块:将小区的频率资源划分为主频率和次频率,其中, 主频率优先分配给小区边界用户作为干扰协调占用的频率资源,次频率分配给小区中心用户; [0054] Frequency resource allocation module interference coordination: the frequency resource into a cell-based secondary frequency and frequency, wherein the frequency of the main frequency resources preferentially allocated to the cell edge users as interference coordination occupied times the frequency assigned to cell center users;

[0055] 判断处理模块:用于当判断出现相邻小区边界用户数量达到预定值或者小区边界存在峰值速率需求达到预定值情况时,触发干扰消除频率资源分配模块; [0055] The determination processing module: determining a number of occurrences when a neighboring cell edge users reaches a predetermined value or a peak rate of demand reaches a predetermined value or a cell boundary, interference cancellation trigger frequency resource allocation module;

[0056] 干扰消除频率资源分配模块:干扰协调频率资源分配模块划分的所述主频率划分出一部分作为干扰消除占用的频率资源,并与相邻小区共同使用该频率资源。 [0056] interference cancellation frequency resource allocation module: frequency interference coordination the primary frequency resource allocation module divided portion of the divided frequency resources occupied as to eliminate interference with an adjacent cell and the use of a common frequency resource.

[0057] 所述的装置还包括: [0057] The apparatus further comprises:

[0058] 信息处理模块:用于当某一用户的原始信息传输块大于预定的值时,则将用户原始的传输块分割成多个CB,令每个CB的大小与ICRB相对应。 [0058] The information processing module: for, when a user's original information block is larger than a predetermined value is transmitted, the user is the original transport block into a plurality of CB, so that the size of each CB ICRB corresponds.

[0059] 本发明中,当相邻小区用于干扰消除的资源块采用不同的调制编码方式时,所述的装置还包括: [0059] In the present invention, when a resource block adjacent cell interference cancellation for different modulation and coding scheme, said apparatus further comprising:

[0060] 干扰信息通知模块:设置于干扰小区基站中,用于将干扰用户的配置信息通知被干扰小区基站; [0060] The interference information notifying module: a base station provided in an interfering cell, the interference for the user configuration information notified by the base station interfering cell;

[0061] 第一信息发送模块:设置于被干扰小区基站中,用于将所述的干扰用户的配置信息通知被干扰用户。 [0061] The first information transmission module: interfered cell disposed on the base station, configuration information for notification of the user interference is the interference user.

[0062] 本发明中,当相邻小区用于干扰消除的资源块采用不同的调制编码方式时,所述的装置还包括: [0062] In the present invention, when a resource block adjacent cell interference cancellation for different modulation and coding scheme, said apparatus further comprising:

[0063] 身份信息通知模块:设置于干扰小区基站中,用于将干扰用户的身份信息通知被干扰小区基站; [0063] The identity information notifying module: a base station provided in an interfering cell, the interference for the user identity information is notified interfering cell base station;

[0064] 第二信息发送模块:设置于被干扰小区基站中,用于根据所述的干扰用户的身份信息将对应的干扰用户的配置信息通知被干扰的用户。 [0064] The second information transmission module: interfered cell disposed on the base station, configuration information for the user according to the notification of the interfering user identity information corresponding to the user interference is interference.

[0065] 由上述本发明提供的技术方案可以看出,本发明提供了干扰协调干扰避免和干扰消除相结合的更灵活的实现方案,并给出了具体的物理资源块和编码块以及进行干扰检测消除的资源块之间的关系。 [0065] provided by the technical solution of the present invention can be seen, the present invention provides an interference coordination to avoid interference and interference cancellation more flexible implementations combined, and the concrete block and a physical resource block coding and interference the relationship between the resource block detection cancellation. 因此,本发明的实现使得在无线通信系统中可以同时利用两种避免小区间干扰的实现方法:一种是干扰协调以避免小区间干扰,另一种是进行干扰消除; 从而使得两种方法之间实现各自的优势互补,以减少各自的局限性。 Accordingly, the present invention is to realize such a wireless communication system may utilize two kinds while avoiding inter-cell interference implementations: one is interference coordination to avoid inter-cell interference, interference cancellation is the other; so that the two methods inter achieve their complementary advantages, in order to reduce their limitations. 同时,本发明还通过动态调整干扰消除和干扰协调各自占用的频率资源,从而增加了系统的灵活性,支持多样的业务需求。 Meanwhile, the present invention also eliminates interference by dynamically adjusting the frequency coordination and interference occupy their resources, thereby increasing the flexibility of the system to support a variety of business needs.

[0066] 另外,本发明不受用户数据传输块大小的限制从而支持多种业务需求,较大的数据传输块业务可以进行干扰消除,较小的数据传输块业务采用干扰协调进行干扰避免。 [0066] Further, the present invention is not user data transport block size limit needs to support multiple services, data transmission block large traffic interference cancellation may be smaller traffic data transmission block using interference coordination to avoid interference.

附图说明 BRIEF DESCRIPTION

[0067] 图1为现有技术中干扰消除与干扰协调结合的系统示意图; [0067] Figure 1 is a schematic view of the system in conjunction with interference coordination prior art interference cancellation;

[0068] 图2为本发明提供的干扰消除与干扰协调结合的系统的具体实现示意图;[0069] 图3为本发明中动态调整干扰消除和干扰协调占用的频率资源的示意图; Specific [0068] FIG. 2 of the present invention provides the interference elimination system and the interference coordination in combination to achieve a schematic view; [0069] FIG. 3 is an schematic dynamically adjusted interference coordination and interference cancellation frequency resources occupied;

[0070] 图4为基于干扰协调的资源分配方式示意图; [0070] FIG. 4 is a resource allocation based on interference coordination schematic;

[0071] 图5为用于干扰消除的频率资源调整过程示意图; [0071] FIG. 5 is a schematic diagram for the frequency resource interference cancellation adjustment process;

[0072] 图6为干扰消除块包含完整编码块的示意图; [0072] FIG 6 comprises a schematic view of eliminating the entire coding blocks which interference;

[0073] 图7为干扰消除块包含分割后的完整编码块的示意图; [0073] FIG. 7 is a schematic block contains the complete coding block divided interference cancellation;

[0074] 图8为本发明所述的装置的示意图。 [0074] FIG. 8 is a schematic view of the apparatus of the present invention.

具体实施方式 Detailed ways

[0075] 本发明是在基于干扰协调和干扰消除两种避免干扰的实现方案的基础上实现的。 [0075] The present invention is achieved based on interference avoidance and interference cancellation interference coordination based on the two kinds of implementations. 在实现过程中包括实现了对干扰协调和干扰消除占用的频率资源进行动态调整,从而有效支持不同系统环境以及多样的业务需求。 In the implementation process, including the realization of the frequency resources for interference coordination and interference cancellation occupied dynamically adjusted, so as to effectively support different system environments and diverse business needs.

[0076] 在本发明提供的干扰协调和干扰消除相结合的方案中,可以采用不同的频率资源分配方式实现对干扰协调和干扰消除占用的频率资源的动态调整;既可以事先分配好相应的频率资源,也可以在业务负载发生变化并符合预定的条件时完成干扰消除和干扰协调占用的频率资源的分配。 [0076] interference coordination and interference present invention provides elimination of combined scheme may use different frequency resources allocation dynamically adjusted to eliminate the frequency resources occupied by the interference coordination and interference; both good a corresponding frequency can be allocated in advance resources can also be changed in the traffic load and complete the assigned frequency interference cancellation and interference coordination of resources occupied when meets a predetermined condition.

[0077] 为便于对本发明的理解,下面将以采用以下两种具体的动态的频率资源分配方式为例对本发明的具体实现方式进行说明。 [0077] To facilitate understanding of the present invention, the following will be an example of the specific implementation of the present invention will be described using the following two specific dynamic frequency resource allocation. 当然,本发明的实现并不仅限于以下两种具体的资源分配方式。 Of course, implementations of the present invention is not limited to the following two specific resource allocation.

[0078] (1)第一种资源分配方式 [0078] (1) a first resource allocation scheme

[0079] 在该方式中,是从所有可用频率资源中专门划分出一部分分配给用于干扰消除的小区边界用户,这部分频率资源可以由相邻小区用户共用;之后,将其余的小区频率资源划分为主频率和次频率,主频率优先分配给用于干扰协调小区边界用户,次频率分配给小区中心用户;资源分配完成后,还可以根据不同系统负载情况动态调整用于干扰消除和干扰协调占用的频率资源。 [0079] In this embodiment, specifically dividing all the available frequency resources from a portion allocated to the cell edge user interference cancellation, this part of the frequency resources may be shared by adjacent cell user; then, the remaining frequency resources cells into a main and secondary frequency frequency, dominant frequency interference coordination preferentially allocated to a cell edge user, to the secondary cell center frequency allocation; after completion of the resource allocation, the interference may also be used to dynamically adjust depending on system load and to eliminate interference coordination occupied frequency resources.

[0080] 参照图2所示,首先,专门分配一部分频率资源用于小区边界用户的干扰检测消除,图2中的黑色圆圈部分即为用于小区边界用户干扰检测消除的频率资源;然后,再进行干扰协调资源分配,即图2中其它以条格、点状和空白标示的部分代表小区边界用户采用干扰协调频率规划避免干扰,且不采用干扰检测消除技术,中间的灰色六边形标示的部分为分配给小区中心用户可以使用所有的频率资源,频率重用因子为一。 [0080] Referring to FIG, first, the frequency resources specifically allocated a portion of the cell edge users 2 for elimination of interference detection, the black circles in FIG. 2 is the portion of the frequency resources for a cell boundary detecting user interference cancellation; Then, interference coordination resource allocation, i.e., FIG. 2 of the grid to the other, and the dot-shaped blank portions represent the cell border marked using interference coordination of frequency planning to avoid interference, and does not eliminate the interference detection technique employed, the intermediate gray labeled hexagons part assigned to cell center users can use all frequency resources, a frequency reuse factor.

[0081] 此时,可以将这部分分配给小区边界用户用于干扰消除的频率资源用进行半静态或者动态调整,如图3所示,不同小区基站可以根据各自不同的系统负荷需求将用于干扰消除的频率资源分配给小区边界用户用于干扰协调或者分配给小区中心用户,例如: [0081] In this case, this part of the frequency resource allocation to the cell boundary of interference cancellation for users with semi-static or dynamic adjustments, as shown in FIG. 3, the base station cell may be different according to their different requirements for system load interference cancellation frequency resources allocated to the cell edge users, or for interference coordination is assigned to cell center users, for example:

[0082] 当小区边界的系统负荷较小时,如图3中只存在干扰协调部分所示,在该情况下, 可以将分配给用于进行干扰检测消除的频率资源重新分配给小区中心用户,而小区边界间的干扰只通过比较简单的干扰协调技术就可以避免了。 [0082] When the system load cell boundary is small, in FIG. 3 in the presence of interference coordination portion, in this case, the frequency resources allocated to the interference detection to eliminate reassigned to cell center users, while border inter-cell interference can be avoided only by relatively simple interference coordination technology. 而且,由于当一部分资源分配给小区中心用户时,由于距离相邻小区较远,信号功率衰减较大,对相邻小区造成的干扰很小, 因此不再需要进行干扰检测消除。 Further, since the time when a part of the resources allocated to the cell center, since the farther the distance between adjacent cells, the signal power attenuation greater interference caused by neighboring cells is small, and therefore no longer necessary to eliminate the interference detection.

[0083] 当某一小区边界负载很大或者存在高峰值速率需求的时候,如图3中只存在干扰消除部分所示,此时不存在用于干扰协调的频率资源,所有小区边界用户共用尽量多的频 [0083] When a large load cell boundary or present when the peak rate requirements, as shown in the presence of an interference cancellation section 3, the frequency resources do not exist at this time for interference coordination, the cell edge users share all possible multi-frequency

9率资源,以满足系统需求。 9 of resources to meet system requirements.

[0084] (2)第二种资源分配方式 [0084] (2) The second resource allocation scheme

[0085] 另一种资源分配方式是基于干扰协调的方法。 [0085] Another method of resource allocation is based on interference coordination.

[0086] 在该方式中,首先按照频率协调方案将小区中的频率资源划分为主频率和次频率:将主频率优先分配给每个小区的边界用户,且相邻小区的边界用户使用不同的主频率, 以避免小区间干扰;次频率则分配给小区中心用户使用。 [0086] In this manner, according to the first embodiment the frequency coordination of frequency resources in the cell-based frequency and the secondary frequency division: the main frequency assigned to the priority of each user cell boundaries, and the boundary of neighboring cells use different user main frequency, in order to avoid inter-cell interference; secondary frequencies allocated to the cell center user. 然后,当某一小区边界或者某些相邻小区边界出现大量用户或者存在高峰值速率需求,此时,干扰协调的方法无法满足现有系统需要,因此,需要将此小区或与此小区相邻的某些相邻小区的主频率划分出一部与相邻小区共用,以进行干扰检测消除。 Then, when a certain neighboring cell boundary or boundaries of cells or the presence of a large number of users demand peak rates, this time, the interference coordination method can not meet the needs of existing systems, therefore, this needs to neighboring cells or cells with this some of the main frequency is divided on a neighboring cell and the adjacent cell common to detect interference elimination. 同时,在通信系统中还需要动态调整用于干扰检测消除和干扰协调占用的频率资源。 It also requires dynamic adjustment for interference detection and elimination of frequency resources occupied interference coordination in a communication system.

[0087] 举例说明,如图4所示,当出现相邻小区频率争用的情况,小区1和小区2的边界用户很多(即达到预定的用户数量值)或者都需要很高的峰值速率(即峰值速率需求达到预定值)时,经过两个小区的协商,可以将这两个相邻小区用于干扰协调的频率资源划分出一部分,并将该部分频率资源作为小区1和小区2的边界用户都可以使用的频率资源。 [0087] way of example, as shown, when the frequency of the neighbor cell where contention occurs, a lot of cell edge users and cell 2 (i.e., the number of users reaches a predetermined value), or requires a high peak rate (4 that is, when the peak demand rate reaches a predetermined value), after consultation of two cells, the two adjacent frequency resources can be used for cell interference coordination divided portion, and the portion of the frequency resources as a boundary of cell 1 and cell 2 users can use the frequency resources. 同时,利用这一部分频率采用干扰消除技术将干扰检测并分离出去,相应的用于干扰消除的频率资源也可以根据不同的系统负载情况进行调整。 Meanwhile, the frequency of use of this part of the interference using interference cancellation techniques will be detected and separated, corresponding frequency resources for interference cancellation can also be adjusted depending on system load.

[0088] 另外,在本发明提供的干扰协调和干扰消除相结合的方案中,分配给某一小区用于干扰协调的主频率资源,即优先分配给小区边界用的频率资源,也可以根据该小区和与该相邻小区边界各自不同的系统负载情况进行半静态或者动态调整,例如,当某一小区边界存在突发的大量吞吐量需求时,如相邻小区边界的负载较小,则经过该小区基站和相邻小区基站协商,将相邻小区边界用户占用的一部分频率资源重新分配给该小区用户,此时各小区的频率重用因子大小可以不是整数。 [0088] Further, in the interference coordination and interference cancellation according to the present invention provides a combined scheme, frequency resources allocated to a primary cell for interference coordination, i.e. preferentially allocated to a frequency resource with a cell boundary, it can be based on the and a neighboring cell to the cell boundary of the system load different respective semi-statically or dynamically adjusted, e.g., when there is a sudden demand for a large number of certain cell boundary, such as a load cell boundary adjacent the smaller, then through the cell and a neighboring cell base station negotiate a portion adjacent frequency resources occupied by the user cell boundaries reassigned to the user the cell, this time the frequency reuse factor of each cell size may not be an integer.

[0089] 用于干扰协调的频率资源可以通过不同的时频图案来划分不同小区边界用户占用的频率资源,用于干扰消除的频率资源则可以通过不同的时频图案与用于干扰协调的频率资源进行区分。 Frequency resources [0089] for interference coordination may be divided into different frequency resources occupied by the cell edge users by different patterns of frequency, the frequency resources used for interference cancellation may be patterned by different frequency for interference coordination with the frequency resources to make that distinction. 举例说明,如图5所示,不同图案的时频图案代表不同相邻小区使用的时频资源,空白、灰色和条形部分分别代表3个相邻小区1、小区2和小区3分别占用的用于干扰协调的时频资源。 Illustration, shown in Figure 5, different pilot pattern representative of a pattern of frequency resources used in different neighboring cells, blank, gray and stripe portions represent three adjacent cell 1, cell 2 and cell 3 are occupied by when used for frequency interference coordination of resources. 当小区1和小区2的小区边界都出现很多用户(达到预定用户数量值)或者高峰值速率需求(峰值速率需求达到预定值)时,而小区3的小区边界没有负载时,可以将原先分配给小区3的用于干扰协调的时频资源重新分配给小区1和小区2的边界用户共用,用作干扰消除。 When the cell 1 cell border and cell 2 are a lot of users (up to a predetermined number of users value) or when the rate of demand (peak rate demand reaches a predetermined value) peak, and the cells in the cell boundary 3 is not load may be originally assigned to when the 3-cell interference coordination for frequency resource re-allocated to a cell edge users and cell 2 share, as interference cancellation.

[0090] 本发明中,为实现上述干扰协调技术和干扰消除相结合的方案,还针对具体的物理资源块和编码块以及进行干扰检测消除的资源块之间的关系进行了重新定义,目的是为了保证在干扰消除过程中,可以正确检测到相应位置的干扰信号并进行分离。 [0090] In the present invention, to achieve the above interference coordination technique combining and interference cancellation scheme, but also for specific physical resource block and the coding block as well as the relationship between the resource blocks detected interference cancellation redefined, the aim in order to ensure that the interference cancellation process in the interference signal can be correctly detected and separated corresponding positions. 具体可定义为:ICRB (Interference Cancellation Resource Block,干扰消除资源块)ICRB 由连续的整数个物理资源块PRB(Physical Resource Block,物理资源块)组成,该数量可以由某一合适的典型系统负载来确定并保证足够的信道编码增益,其中PRB即为所述的Chunk。 Specifically defined as: ICRB (Interference Cancellation Resource Block, interference cancellation resource blocks) of a continuous integer ICRB physical resource block PRB (Physical Resource Block, physical resource block), with this quantity may be supported by some suitable exemplary system and determining channel to ensure adequate coding gain, wherein the PRB is the Chunk. ICRB 包含至少一个完整的CB (Code Block,编码块),该CB中包含的信号为干扰信号和被干扰信号的叠加。 ICRB comprising at least one complete CB (Code Block, block encoding), the signal CB is contained in the superposition signal and the interfering signal interference. 当进行干扰检测消除时,必须在相同位置并且相同大小的ICRB上才可以正确检测干扰并分离出去。 When detecting the interference elimination, interference must only be detected at the same position and the same size and separated ICRB correct.

10[0091] 当用于干扰消除用户的CB大小映射到物理资源上可以容纳到一个ICRB时,即采用干扰消除的ICRB包含某些用户完整的CB时,举例说明,如图6所示,当相邻小区A和B 要进行干扰检测消除时,采用的ICRB包含某些用户一个完整CB,该CB映射到物理资源上包含几个的PRB,在图6中,每个ICRB由4个连续PRB组成,该4个PRB包含小区A和小区B 两个边界用户的一个完整的编码块,6个用户的6个CB对应6个ICRB。 10 [0091] When CB size for interference cancellation of users can be mapped to physical resources to accommodate a ICRB, that comprises using interference cancellation ICRB some users complete CB, illustration, shown in Figure 6, when neighboring cells a and B to detect interference elimination, ICRB employed contains some user a complete CB, CB of the PRB is mapped to the physical resource comprises several, in FIG. 6, each consisting of four consecutive PRB ICRB composition, which contains a 4 PRB complete coding block a and the cell B cell boundary of two users, the user 6 6 6 correspond CB ICRB. 这样,进行干扰消除时只需要进行简单的“双用户检测”即可将干扰信号恢复出来并进行分离。 In this way, just a simple "dual-user detection" interference cancellation signal can be recovered from interferences and separated out.

[0092] 当某一用户的原始信息传输块较大时,比如按照某一编码增益的CB映射到物理资源上大于特定可以进行干扰消除的资源块时,则可以将用户原始的传输块分割成多个CB 以保证每个CB的大小与ICRB相对应。 When [0092] When a user original information transport block is large, such as greater than a particular mapped to the physical resources may be resource blocks CB interference cancellation in accordance with a coding gain, the user may be divided into the original transport block a plurality of CB CB to ensure that each correspond to the size of ICRB. 例如,如图7所示,小区A的用户3和用户4和小区B的用户2占用两个连续的ICRB,包含两个完整的CB,而小区B的用户1占用3个不连续的ICRB,每个ICRB各自包含一个完整的CB。 For example, as shown in FIG. 7, the cell A of the user 3 and user 4 and user B of the cell occupies two consecutive ICRB 2, comprising two complete CB, the cell B 1 and the user 3 occupies discontinuous ICRB, each ICRB each containing a complete CB. 此时,每ICRB包含的PRB的个数仍要保证适合典型的系统负载和足够的编码增益。 At this time, each of the number of PRB ICRB still contain typical system load assure proper and sufficient coding gain. 所以在这种情况下,即使用于干扰检测消除的用户原始信息传输块较大,也可以进行类似的“双用户检测”完成干扰消除。 So in this case, even if the original transmission of the user information used for interference cancellation detection of a large block may be performed a similar "dual-user detection" complete interference cancellation.

[0093] 用于干扰检测消除的资源块可以采用不同调制编码模式,例如,采用不同的调制模式、FEC模式和编码增益以适应不同的信道情况;或者,也可以采用相同的调制编码方式,如QPSK(四相移键控)和Turbo (并行级联交织卷积码)编码,这样会很大程度上简化用户检测干扰信号的操作。 [0093] for the interference detection to eliminate resource block can use different modulation and coding modes, e.g., different modulation mode, the FEC mode and coding gain to adapt to different channel conditions; or, the same modulation and coding scheme may also be employed, such as QPSK (Quadrature phase shift keying) and Turbo (interleaved parallel concatenated convolutional codes) coding, which will greatly simplify the operation of the user detected interference signal.

[0094] 另外,使用干扰检测分离的干扰消除方法需要接收用户获知来自相邻小区干扰用户的配置信息,即干扰信号的一些配置信息,包括调制编码方式,FEC方式和编码速率等,这样,才可以将干扰信号恢复出来并进行分离处理。 [0094] Further, the interference detection using separate interference cancellation method needs to receive from a user to know the neighboring cell configuration information of the user interference, i.e. interference signals some configuration information, including modulation and coding scheme, coding rate of the FEC method and the like, in this way, it can be restored and the interference signal separation processing. 因此,在通信系统中,需要一些额外的方法或者信令进行干扰用户的配置信息的通知。 Thus, in the communication system, the method requires some additional signaling or configuration information notification interfering users. 本发明中采用的通知干扰用户的配置信息的方式具体可以采取以下两种方式实现,分别为: Configuration information to notify the user of the interference present invention can be employed in particular take the following two ways, namely:

[0095] 1、由干扰小区基站通知被干扰小区基站干扰用户的配置信息,再由被干扰小区基站将此信息通知被干扰的用户。 [0095] 1, by the interfering cell interfered base station informs the base station configuration information of the cell interfering users, the user then notifies the base station of this cell interference information is interfered.

[0096] 2、由干扰小区基站通知被干扰小区基站干扰用户的ID (用户身份),再由被干扰小区基站将相应的信息通知被干扰的用户,被干扰用户接收干扰小区基站发送的此用户身份的配置信息。 [0096] 2, ID (user) by the interfering cell base station notifies the interfering cell base station interfering users, then the user is interfering cell base station corresponding information notification interfered, interference user user receives interfering cell from the base station configuration information for identity.

[0097] 当相邻小区用于干扰消除的资源块采用相同的调制编码方式时,则由于被干扰用户事先已经获知干扰用户的配置信息,因此,不需要额外信令进行干扰信号信息的通知。 [0097] When a resource block adjacent cell interference cancellation using the same modulation and coding scheme, since the interference user configuration information has previously been known to interfere with the user, thus, no additional signaling the interference notification signal information.

[0098] 本发明还提供了一种避免小区间出现干扰的实现装置,所述装置的具体实现如图8所示,具体包括以下组成模块: [0098] The present invention further provides an apparatus for implementing avoid inter-cell interference occurs, a specific implementation of the device shown in Figure 8, comprises the following component modules:

[0099] (1)频率资源分配模块 [0099] (1) a frequency resource allocation module

[0100] 用于分别为干扰协调和干扰消除的小区边界用户确定相应的频率资源作为用于干扰消除和干扰协调占用的频率资源; [0100] respectively for interference coordination and interference cancellation for cell edge users as to determine the corresponding frequency resource for interference cancellation and frequency resources occupied interference coordination;

[0101] 该模块具体可以采用以下两种具体结构实现,分别为: [0101] The module may be specifically implemented using two specific structures, respectively:

[0102] 在第一种实现结构中,所述的频率资源分配模块具体包括: [0102] In one implementation, the first configuration, the frequency resource allocation module comprises:

[0103] 干扰消除频率资源分配模块:用于将小区的频率资源中的一部分分配给用于为干扰消除的小区边界用户作为用于干扰消除占用的频率资源,且该频率资源与相邻小区用户共用;[0104] 干扰协调频率资源分配模块:用于将小区的另一部分频率资源划分为主频率和次频率,其中,主频率优先分配给用于干扰协调小区边界用户作为干扰协调占用的频率资源, 次频率分配给小区中心用户。 [0103] interference cancellation frequency resource allocation module: part for allocating frequency resources in the cell used for the cell edge users to eliminate interference as interference cancellation for the frequency resources occupied by the user of the cell and the adjacent frequency resources common; [0104] frequency resource allocation module interference coordination: another portion of a cell for the frequency resources and frequency divided into a main secondary frequency, wherein the frequency of the main frequency resources allocated to a priority for the cell edge users as interference coordination interference coordination occupied , secondary frequencies are allocated to the cell center user.

[0105] 在第二种实现结构中,所述的频率资源分配模块具体包括: [0105] In a second implementation structure, the frequency resource allocation module comprises:

[0106] 干扰协调频率资源分配模块:将小区的频率资源划分为主频率和次频率,其中, 主频率优先分配给小区边界用户作为干扰协调占用的频率资源,次频率分配给小区中心用户; [0106] Frequency resource allocation module interference coordination: the frequency resource into a cell-based secondary frequency and frequency, wherein the frequency of the main frequency resources preferentially allocated to the cell edge users as interference coordination occupied times the frequency assigned to cell center users;

[0107] 判断处理模块:用于当判断出现相邻小区边界用户达到预定值或者小区边界存在峰值速率需求达到预定值的情况时,触发干扰消除频率资源分配模块; [0107] determination processing module: for the case when it is judged that the cell edge users of adjacent cells reaches a predetermined value or there boundary peak rate demand reaches a predetermined value occurs, the trigger frequency resource allocation module interference cancellation;

[0108] 干扰消除频率资源分配模块:干扰协调频率资源分配模块划分的所述主频率划分出一部分作为干扰消除占用的频率资源,并与相邻小区共同使用该频率资源。 [0108] interference cancellation frequency resource allocation module: frequency interference coordination the primary frequency resource allocation module divided portion of the divided frequency resources occupied as to eliminate interference with an adjacent cell and the use of a common frequency resource.

[0109] (2)频率调整模块 [0109] (2) frequency adjustment module

[0110] 用于动态调整所述的用于干扰消除和干扰协调占用的频率资源。 [0110] for dynamically adjusting for the interference cancellation and frequency resources occupied by interference coordination.

[0111] 所述的装置还包括: [0111] The apparatus further comprises:

[0112] 信息处理模块:用于当某一用于干扰消除的小区边界用户的原始信息传输块大于预定的值时,则将用户原始的传输块分割成多个CB,令每个CB的大小与ICRB相对应。 [0112] The information processing module: used for interference cancellation, when a transport block of information of the original cell edge users is greater than a predetermined value, the user is the original transport block into a plurality of CB, so that the size of each CB and ICRB, respectively.

[0113] 另外,当相邻小区用于干扰消除的资源块采用不同的调制编码方式时,在所述的装置中还需要将干扰用户的配置信息通知被干扰的用户,为此,仍如图8所示,需要在所述的装置增加设置相应的模块,具体可以通过以下两种具体的结构实现: [0113] Further, the resource blocks when the adjacent cell interference cancellation for different modulation and coding scheme, said apparatus further user configuration information needed to inform the user of the interference of the interference, therefore, still in FIG. 8, the corresponding need to increase the apparatus modules arranged, in particular can be done in two specific configuration:

[0114] 结构1为在所述装置中增加的模块如下: [0114] Structure 1 is increased in the device modules are as follows:

[0115] 干扰信息通知模块:设置于干扰小区基站中,用于将干扰用户的配置信息通知被干扰小区基站; [0115] The interference information notifying module: a base station provided in an interfering cell, the interference for the user configuration information notified by the base station interfering cell;

[0116] 第一信息发送模块:设置于被干扰小区基站中,用于将所述的干扰用户的配置信息通知被干扰用户。 [0116] The first information transmission module: interfered cell disposed on the base station, configuration information for notification of the user interference is the interference user.

[0117] 结构2为在所述的装置中增加的模块如下: [0117] Structure 2 is increased in the apparatus modules are as follows:

[0118] 身份信息通知模块:设置于干扰小区基站中,用于将干扰用户的身份信息通知被干扰小区基站; [0118] Identity information notifying module: a base station provided in an interfering cell, the interference for the user identity information is notified interfering cell base station;

[0119] 第二信息发送模块:设置于被干扰小区基站中,用于根据所述的干扰用户的身份信息将对应的干扰用户的配置信息通知被干扰的用户。 [0119] The second information transmission module: interfered cell disposed on the base station, configuration information for the user according to the notification of the interfering user identity information corresponding to the user interference is interference.

[0120] 综上所述,本发明的实现使得在无线通信系统中可以同时利用两种避免小区间干扰的实现方法:一种是干扰协调以避免小区间干扰,另一种是进行干扰消除;从而使得两种方法之间实现各自的优势互补,以减少各自的局限性。 [0120] In summary, the present invention is to realize such a wireless communication system may utilize two kinds while avoiding inter-cell interference implementations: one is interference coordination to avoid inter-cell interference, interference cancellation is another; so that to achieve their complementary advantages to reduce their own limitations between the two methods. 同时,本发明还通过动态调整干扰消除和干扰协调各自占用的频率资源,从而增加了系统的灵活性,支持多样的业务需求。 Meanwhile, the present invention also eliminates interference by dynamically adjusting the frequency coordination and interference occupy their resources, thereby increasing the flexibility of the system to support a variety of business needs.

[0121] 以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到的变化或替换, 都应涵盖在本发明的保护范围之内。 [0121] The above are only the preferred specific embodiments of the invention, but the scope of the present invention is not limited thereto, any skilled in the art in the art within the scope of the invention disclosed can be easily thought variations or replacements shall fall within the protection scope of the present invention. 因此,本发明的保护范围应该以权利要求的保护范围为准。 Accordingly, the scope of the present invention should be defined by the scope of the claims.

Claims (14)

  1. 一种避免小区间出现干扰的实现方法,其特征在于,包括:分别为使用干扰协调小区边界用户和使用干扰消除的小区边界用户分配相应的频率资源作为用于干扰消除和干扰协调占用的频率资源,并动态调整用于干扰消除和干扰协调占用的频率资源;其中,所述分别为使用干扰协调小区边界用户和使用干扰消除的小区边界用户分配相应的频率资源作为用于干扰消除和干扰协调占用的频率资源具体包括:将所有可用频率资源中的一部分分配给使用干扰消除的小区边界用户作为用于干扰消除占用的频率资源,且该频率资源相邻小区用户共用;将其余的可用频率资源划分为主频率和次频率,其中,主频率优先分配给用于干扰协调的小区边界用户作为干扰协调占用的频率资源,次频率分配给小区中心用户;或者,所述分别为使用干扰协调小区边界用户和使用 A Method to avoid inter-cell interference occurs, characterized by comprising: a frequency corresponding to respective resource coordination cell edge users and interference cancellation allocated to cell edge users as interference for interference cancellation using frequency resources occupied by the interference coordination and and dynamically adjust for interference cancellation and frequency resources occupied interference coordination; wherein respective frequency resource, each said interference coordination using cell edge users and interference cancellation allocated as the cell edge users and interference coordination for interference cancellation occupancy frequency resources comprises: allocating a portion of all available frequency resources to cell edge users using interference cancellation as the frequency resource occupied for interference cancellation, and the neighboring cell users to share the frequency resource; the rest of the available frequency resource into frequency and time-based frequency, wherein the frequency resources in the cell edge users preferentially allocated to the primary frequency interference coordination for interference coordination as occupied, secondary frequencies are allocated to the cell center users; or, respectively, the cell edge users using interference coordination and use 扰消除的小区边界用户分配相应的频率资源作为用于干扰消除和干扰协调占用的频率资源具体包括:将所有可用频率资源划分为主频率和次频率,其中,主频率优先分配给小区边界用户作为干扰协调占用的频率资源,次频率分配给小区中心用户;当出现小区边界用户达到预定的数量值或者小区边界存在峰值速率需求达到预定值时,则从所述主频率划分出一部分作为干扰消除占用的频率资源,并与相邻小区共同使用该频率资源;所述动态调整用于干扰消除和干扰协调占用的频率资源,包括:动态调整所述的用于干扰检测消除和干扰协调占用的频率资源。 Interference cancellation for cell edge users as a resource allocation corresponding frequency interference coordination for interference cancellation and frequency resources occupied comprises: dividing frequency resources available for all the main and secondary frequency frequency, wherein the main frequency preferentially allocated to cell edge users as frequency resource occupied by the interference coordination, the secondary frequencies are allocated to the cell center users; occurs when the cell edge users demand rate reaches a peak value reaches a predetermined value or a predetermined number of cell boundary, from the primary frequency interference cancellation as part of partitioned occupied frequency resources, the neighbor cell and the common frequency resources; dynamic adjustment for the interference cancellation and frequency resources occupied by the interference coordination, comprising: dynamically adjusting a frequency resource interference detection and elimination of interference coordination for the occupied .
  2. 2.根据权利要求1所述的方法,其特征在于,所述的方法包括:用于干扰消除的包含一组连续子载波的干扰消除资源块包含至少一个完整的编码块, 并在相同位置上,由整数倍的连续的物理资源块构成。 2. The method according to claim 1, wherein said method comprises: means for interference cancellation comprises a set of contiguous subcarriers interference canceling a resource block comprising at least one complete coded block, and in the same position composed of consecutive physical resource blocks is an integer multiple.
  3. 3.根据权利要求1所述的方法,其特征在于,所述的方法包括:当某一用户的原始信息传输块大于预定的值时,则将用户原始的传输块分割成多个编码块,令每个编码块的大小与干扰消除资源块相对应。 3. The method according to claim 1, characterized in that the method comprises: when a user's original information block is larger than a predetermined value is transmitted, the user is the original transport block into a plurality of coding blocks, so that every coding block size and the interference canceling blocks corresponding to the resource.
  4. 4.根据权利要求1所述的方法,其特征在于,所述的方法包括:针对用于干扰协调占用的频率资源的调整是通过不同的时频图案区分不同小区边界用户占用的资源实现, 4. The method according to claim 1, characterized in that the method comprises: adjusting the frequency resource occupied for interference coordination is used to distinguish between different resources occupied by the user to achieve a cell boundary through different frequency patterns,
  5. 5.根据权利要求1所述的方法,其特征在于,所述的方法包括:针对用于干扰检测消除占用的频率资源的调整是通过不同的时频图案与用于干扰协调的频率资源进行区分实现。 5. The method according to claim 1, characterized in that the method comprises: adjusting a frequency resource used for detecting the interference elimination is occupied by a different pilot pattern and the frequency resources for interference coordination distinguish achieve.
  6. 6.根据权利要求1所述的方法,其特征在于,所述的方法包括:用于干扰检测消除占用的资源块采用不同的调制编码模式,或者采用相同的调制编码方式。 6. The method according to claim 1, characterized in that the method comprises: means for detecting the interference elimination using the resource block occupied by a different modulation coding mode, or with the same modulation and coding scheme.
  7. 7.根据权利要求1所述的方法,其特征在于,所述的方法还包括:当相邻小区用于干扰消除的资源块采用不同的调制编码方式时,需要将干扰用户的配置信息通知被干扰用户。 7. The method according to claim 1, wherein said method further comprises: when a resource block adjacent cell interference cancellation for different modulation and coding scheme, needs to be configured to inform the user of the interference is interfere with the user.
  8. 8.根据权利要求7所述的方法,其特征在于,将干扰用户的配置信息通知被干扰用户的过程包括:干扰小区基站通知被干扰小区基站干扰用户的配置信息,再由被干扰小区基站将此信息通知被干扰的用户;2或者,干扰小区基站通知被干扰小区基站干扰用户的身份信息,再由被干扰小区基站根据所述身份信息将对应的干扰用户的配置信息通知被干扰用户。 8. The method according to claim 7, wherein the interfering user configuration information notification process is interfered with the user comprises: an interference cell configuration information of the interfered station notifies the base station cell interference user, and then to the interfered cell base station users interfered notification information; or 2, the base station notifies the interfering cell interfered cell base station identification information of the user interference, then the base station is interfered cell interference according to the configuration information of the user identification information corresponding to the notification of the interfering users.
  9. 9.根据权利要求1所述的方法,其特征在于,所述的用于干扰协调占用的频率资源,设置为能够根据相邻小区不同的负载需求情况在相邻小区之间进行调整。 9. The method according to claim 1, wherein said means for frequency resources occupied by interference coordination, can be adjusted to between adjacent cells of adjacent cells depending on the load demand.
  10. 10.根据权利要求1所述的方法,其特征在于,所述的动态调整具体包括:在小区中,根据小区边界的用户数量或者小区边界用户的业务需求情况对小区中已经分配的用于干扰消除和干扰协调占用的频率资源进行调整。 10. The method according to claim 1, wherein said dynamically adjusting comprises: in a cell, according to the service needs of the user or the number of cell edge users of a cell boundary for the interference of the cell has been assigned cancellation and interference coordination occupied frequency resources to be adjusted.
  11. 11. 一种避免小区间出现干扰的实现装置,其特征在于,包括:频率资源分配模块:用于分别为干扰协调和干扰消除的小区边界用户确定相应的频率资源作为用于干扰消除和干扰协调占用的频率资源;频率调整模块:用于动态调整所述的用于干扰消除和干扰协调占用的频率资源;其中,所述的频率资源分配模块具体包括:干扰消除频率资源分配模块:用于将小区的频率资源中的一部分分配给用于为干扰消除的小区边界用户作为用于干扰消除占用的频率资源,且该频率资源与相邻小区用户共用;干扰协调频率资源分配模块:用于将小区的另一部分频率资源划分为主频率和次频率,其中,主频率优先分配给用于干扰协调小区边界用户作为干扰协调占用的频率资源,次频率分配给小区中心用户;或者,所述的频率资源分配模块具体包括:干扰协调频率资源 11. An apparatus for implementing avoid inter-cell interference occurs, characterized by comprising: a frequency resource allocation module: for interference coordination and interference cancellation for cell edge users as to determine the corresponding frequency resource and eliminating the interference for interference coordination, respectively frequency resource occupied; frequency adjustment module: used for interference cancellation dynamically adjusting the frequency resource occupied coordination and interference; wherein the frequency resource allocation module comprises: an interference cancellation frequency resource allocation module: for allocating a portion of the frequency resources in the cell to the frequency resource occupied for eliminating the cell edge users as interference cancellation for interference, and the frequency resource is shared with an adjacent cell user; interference coordination frequency resource allocation module: for the cell another portion of the frequency resource into a main frequency and a secondary frequency, wherein the main frequency interference coordination preferentially allocated to the cell edge users as frequency resources occupied by the interference coordination, the secondary frequencies are allocated to the cell center user; alternatively, the frequency resources allocation module comprises: a frequency resource interference coordination 分配模块:将小区的频率资源划分为主频率和次频率,其中,主频率优先分配给小区边界用户作为干扰协调占用的频率资源,次频率分配给小区中心用户;判断处理模块:用于当判断出现相邻小区边界用户达到预定值或者小区边界存在峰值速率需求达到预定值情况时,触发干扰消除频率资源分配模块;干扰消除频率资源分配模块:干扰协调频率资源分配模块划分的所述主频率划分出一部分作为干扰消除占用的频率资源,并与相邻小区共同使用该频率资源。 Distribution module: the frequency of frequency resources of the cell divided into a main and a secondary frequency, wherein the frequency of the main frequency resources preferentially allocated to the cell edge users as interference coordination occupied times the frequency assigned to cell center; determining a processing module: means for determining when when the cell edge users of adjacent occurs reaches a predetermined value or a peak rate of demand reaches a predetermined value or a cell boundary, interference cancellation trigger frequency resource allocation module; interference cancellation frequency resource allocation module: the frequency resource allocation modules coordinate the divided main interference frequency allocations as part of the frequency resource occupied by the interference canceller, and the neighbor cell common frequency resource.
  12. 12.根据权利要求11所述的装置,其特征在于,所述的装置还包括:信息处理模块:用于当某一用户的原始信息传输块大于预定的值时,则将用户原始的传输块分割成多个编码块CB,令每个编码块CB的大小与干扰消除资源块ICRB相对应。 12. The apparatus as claimed in claim 11, wherein said apparatus further comprises: an information processing module: for, when a user's original information block is larger than a predetermined value is transmitted, the user is the original transport block is divided into a plurality of coding blocks CB, so that the size of each encoded block CB interference cancellation ICRB resource block corresponds.
  13. 13.根据权利要求11所述的装置,其特征在于,当相邻小区用于干扰消除的资源块采用不同的调制编码方式时,所述的装置还包括:干扰信息通知模块:设置于干扰小区基站中,用于将干扰用户的配置信息通知被干扰小区基站;第一信息发送模块:设置于被干扰小区基站中,用于将所述的干扰用户的配置信息通知被干扰用户。 13. The apparatus according to claim 11, wherein, when the adjacent cell interference cancellation for resource blocks with different modulation and coding scheme, said apparatus further comprising: an interference information notifying module: disposed in interfering cell the base station, interference for the user configuration information notified by the base station interfering cell; a first information sending module: interfered cell disposed on the base station, configuration information for the interfering user notification is disturbed user.
  14. 14.根据权利要求11所述的装置,其特征在于,当相邻小区用于干扰消除的资源块采用不同的调制编码方式时,所述的装置还包括:身份信息通知模块:设置于干扰小区基站中,用于将干扰用户的身份信息通知被干扰小区基站;第二信息发送模块:设置于被干扰小区基站中,用于根据所述的干扰用户的身份信息将对应的干扰用户的配置信息通知被干扰的用户。 14. The apparatus according to claim 11, wherein, when the adjacent cell interference cancellation for resource blocks with different modulation and coding scheme, said apparatus further comprising: a notification module identification information: cell disposed in interfering the base station, the interference status information for notifying the user of the interfered cell base station; and a second information sending module: interfered cell disposed on the base station, configuration information for the user based on the interference of the interference user information corresponding to the identity of notify the user be disturbed.
CN 200610009117 2006-02-09 2006-02-09 Implementation method and device for avoiding the interference between the cells CN101018220B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200610009117 CN101018220B (en) 2006-02-09 2006-02-09 Implementation method and device for avoiding the interference between the cells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200610009117 CN101018220B (en) 2006-02-09 2006-02-09 Implementation method and device for avoiding the interference between the cells

Publications (2)

Publication Number Publication Date
CN101018220A CN101018220A (en) 2007-08-15
CN101018220B true CN101018220B (en) 2011-02-16

Family

ID=38726978

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200610009117 CN101018220B (en) 2006-02-09 2006-02-09 Implementation method and device for avoiding the interference between the cells

Country Status (1)

Country Link
CN (1) CN101018220B (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101420746B (en) 2007-10-26 2011-05-11 中兴通讯股份有限公司 Method for interference coordination between cells and interference coordination information transmission method therefor
CN101436889B (en) 2007-11-14 2012-11-28 中兴通讯股份有限公司 Method for reducing or eliminating multicast and broadcast boundary interference
WO2009067842A1 (en) * 2007-11-27 2009-06-04 Zte Corporation Downlink transmission system and method for borrowing spectrum resources and channel resources from adjacent cells
CN104734833B (en) * 2007-12-04 2019-04-23 蔚蓝公司 Inhibit the method and apparatus of inter-cell interference
CN101500237B (en) * 2008-02-02 2013-05-01 夏普株式会社 Dynamic interference coordination method and base station
CN102421197B (en) * 2008-03-20 2014-09-03 华为技术有限公司 Coordination method, coordination device and user equipment
CN101541011B (en) * 2008-03-20 2011-09-14 华为技术有限公司 Method, device and user equipment for coordination
CN101599793B (en) * 2008-06-05 2014-03-12 华为技术有限公司 Method for determining service condition of physical resource block, device and system
CN101605382B (en) 2008-06-13 2011-03-30 大唐移动通信设备有限公司 Method and device for coordinating intercell interference
CN101616423B (en) 2008-06-24 2012-03-21 华为技术有限公司 Methods for transmitting inter-cell interference coordination measurement event and user equipment
US9867203B2 (en) * 2008-07-11 2018-01-09 Qualcomm Incorporated Synchronous TDM-based communication in dominant interference scenarios
CN101730239B (en) 2008-10-24 2012-05-09 中兴通讯股份有限公司 Method for distributing cell frequency resources and terminal channel quality indicated value feedback device
CN101754371B (en) 2008-12-01 2012-08-22 华为技术有限公司 Information sending method and device
CN101848532B (en) 2009-03-24 2012-08-29 电信科学技术研究院 Reference signal received power threshold adjusting method and equipment
EP2425670B1 (en) * 2009-04-30 2016-07-20 Nokia Technologies Oy Methods, apparatuses and computer program product for managing device-to-device interference
US9106378B2 (en) 2009-06-10 2015-08-11 Qualcomm Incorporated Systems, apparatus and methods for communicating downlink information
US8437298B2 (en) * 2009-07-29 2013-05-07 Qualcomm Incorporated Methods and apparatus for blind interference decrease/cancellation techniques
US9144037B2 (en) * 2009-08-11 2015-09-22 Qualcomm Incorporated Interference mitigation by puncturing transmission of interfering cells
US9277566B2 (en) 2009-09-14 2016-03-01 Qualcomm Incorporated Cross-subframe control channel design
US8942192B2 (en) 2009-09-15 2015-01-27 Qualcomm Incorporated Methods and apparatus for subframe interlacing in heterogeneous networks
CN102065550B (en) * 2009-11-12 2014-09-17 电信科学技术研究院 Method and device for reducing inter-cell interference of orthogonal frequency division multiplexing system and terminal thereof
CN102111769B (en) * 2009-12-24 2013-09-18 鼎桥通信技术有限公司 Carrier resource allocation method for user equipment (UE)
CN102111883B (en) * 2009-12-29 2015-11-25 株式会社Ntt都科摩 The method of Home eNodeB distributing radio resource and Home eNodeB
CN101765210B (en) 2009-12-31 2012-05-23 上海华为技术有限公司 Method, device and base station for utilizing cell edge frequency band resources
US9609536B2 (en) 2010-04-13 2017-03-28 Qualcomm Incorporated Measurement of received power and received quality in a wireless communication network
US9226288B2 (en) 2010-04-13 2015-12-29 Qualcomm Incorporated Method and apparatus for supporting communications in a heterogeneous network
US9271167B2 (en) 2010-04-13 2016-02-23 Qualcomm Incorporated Determination of radio link failure with enhanced interference coordination and cancellation
US9125072B2 (en) 2010-04-13 2015-09-01 Qualcomm Incorporated Heterogeneous network (HetNet) user equipment (UE) radio resource management (RRM) measurements
US9392608B2 (en) 2010-04-13 2016-07-12 Qualcomm Incorporated Resource partitioning information for enhanced interference coordination
CN102448173B (en) * 2010-09-30 2015-04-29 华为技术有限公司 Resource coordination processing method, equipment and base station thereof
US8886190B2 (en) 2010-10-08 2014-11-11 Qualcomm Incorporated Method and apparatus for measuring cells in the presence of interference
US10448351B2 (en) 2013-04-02 2019-10-15 Qualcomm Incorporated Employing neighboring cell assistance information for interference mitigation
WO2014169488A1 (en) * 2013-04-19 2014-10-23 华为技术有限公司 Interference coordination method, device and apparatus for systems with different modes
CN107852730A (en) * 2015-04-09 2018-03-27 华为技术有限公司 Method and device, base station and the disturbed user equipment of transmission parameter information

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999037033A1 (en) 1998-01-20 1999-07-22 Viasat, Inc. Self-interference cancellation for relayed communication networks
US6023625A (en) 1997-02-18 2000-02-08 Ericsson Inc. System and method for reducing multicast interference in a distributed antenna network
WO2000051390A1 (en) 1999-02-22 2000-08-31 Telefonaktiebolaget Lm Ericsson (Publ) Mobile radio system and a method for channel allocation in a mobile radio system
CN1622493A (en) 2003-11-28 2005-06-01 大唐移动通信设备有限公司 Method for implementing frequency resource dynamic optimization in TDD mobile communication system
CN1672450A (en) 2002-07-24 2005-09-21 摩托罗拉公司 A communication system and method of allocating resource therefore
CN1694557A (en) 2004-05-04 2005-11-09 阿尔卡特公司 Method for inter-cell interference coordination with power planning for OFDM mobile communication system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6023625A (en) 1997-02-18 2000-02-08 Ericsson Inc. System and method for reducing multicast interference in a distributed antenna network
WO1999037033A1 (en) 1998-01-20 1999-07-22 Viasat, Inc. Self-interference cancellation for relayed communication networks
WO2000051390A1 (en) 1999-02-22 2000-08-31 Telefonaktiebolaget Lm Ericsson (Publ) Mobile radio system and a method for channel allocation in a mobile radio system
CN1672450A (en) 2002-07-24 2005-09-21 摩托罗拉公司 A communication system and method of allocating resource therefore
CN1622493A (en) 2003-11-28 2005-06-01 大唐移动通信设备有限公司 Method for implementing frequency resource dynamic optimization in TDD mobile communication system
CN1694557A (en) 2004-05-04 2005-11-09 阿尔卡特公司 Method for inter-cell interference coordination with power planning for OFDM mobile communication system

Also Published As

Publication number Publication date
CN101018220A (en) 2007-08-15

Similar Documents

Publication Publication Date Title
CN100579272C (en) Restrictive reuse for wireless communication system
ES2298696T3 (en) Method of coordination of inter-cell interference with power planning in a ofdm mobile communication system.
US7835696B2 (en) Adaptive subcarrier loading
RU2344548C2 (en) System and method of band subchannel control with adaptive modulation and coding (amc) in communication system of multiple access with orthogonal-frequency division
KR100909522B1 (en) Method and apparatus for providing soft handoff for the reverse link with frequency reuse in a wireless communication system
RU2407230C2 (en) Frequency-selective and frequency-separated transmission in wireless communication system
EP1867125B1 (en) Transmission methods and apparatus combining pulse position modulation and hierarchical modulation
CN101406080B (en) Method & system for fractional frequency reuse in a wireless communication network
US8477746B2 (en) Base station apparatus, wireless communication system, and wireless transmission method
EP1603266B1 (en) Method and apparatus for transmitting uplink acknowledgement information in an OFDMA communication system
US9853796B2 (en) Terminal apparatus and method for controlling channel quality indicator transmission
CN1139207C (en) Digital audio broadcasting method and apparatus using puncturable convolutional code
US8571132B2 (en) Constrained hopping in wireless communication systems
US7839822B2 (en) Method and apparatus for wireless resource allocation
CN101682876B (en) Base station device, mobile station and wireless communication system, and communication control method
KR101007770B1 (en) Beacon signaling in a wireless system
CN1965602B (en) Communication terminal device, base station device, and radio communication system
EP2765818B1 (en) Base station, user device, and method used in mobile communication system
US7995527B2 (en) Multiple access wireless communications system using a multi-sector configuration
KR100804651B1 (en) Method and apparatus for multi-carrier communication systems with adaptive transmission and feedback
JP4568284B2 (en) Transmission power range setting during channel assignment for interference balancing in cellular radio communication systems
JP2007209031A (en) Ofdm frequency reuse method in mobile communication system
CN101835160B (en) Layered reuse for a wireless communication system
CN101820670B (en) The base station apparatus and a communication method
US20090245197A1 (en) Methods and systems to mitigate inter-cell interference

Legal Events

Date Code Title Description
C06 Publication
C10 Request of examination as to substance
C14 Granted