CN104852748A - Interference suppression device and method, and receiver - Google Patents

Interference suppression device and method, and receiver Download PDF

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CN104852748A
CN104852748A CN201410051612.3A CN201410051612A CN104852748A CN 104852748 A CN104852748 A CN 104852748A CN 201410051612 A CN201410051612 A CN 201410051612A CN 104852748 A CN104852748 A CN 104852748A
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interference
region
noise
unit
calculating
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CN201410051612.3A
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李宝金
王昕�
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富士通株式会社
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Abstract

The embodiment of the invention provides an interference suppression device and method, and a receiver. The device comprises an estimation unit which is used for estimating an IN-SCM matrix of each region of a transmission bandwidth; a first calculation unit which is used for calculating a measurement value according to the estimated IN-SCM matrixes of all regions, wherein the measurement value reflects the level of interference in the transmission bandwidth and noise ratio of the transmission bandwidth; and a filtering unit which is used for the whitening filtering of received data and/or a signal when the measurement value is greater than a preset threshold value. Through the measurement value which is calculated according to the estimated IN-SCM matrixes and used for reflecting the level of interference in the transmission bandwidth and noise ratio of the transmission bandwidth, the device adaptively carries out the whitening filtering of received data and/or the signal, thereby obtaining a good effect of interference suppression in different interference scenes, and guaranteeing the performance of a system.

Description

干扰抑制装置、方法以及接收机 Interference suppression device, method, and receiver

技术领域 FIELD

[0001] 本发明涉及通信技术领域,尤其涉及一种干扰抑制装置、方法以及接收机。 [0001] The present invention relates to communication technologies, and particularly to a interference suppression apparatus, a method and a receiver.

背景技术 Background technique

[0002] 随着对于支持更多用户设备进行更高传输速率通信的需求不断增长,导致频率复用的普遍应用。 [0002] As the demand for higher transmission rates to support more user communication devices continues to grow, leading to widespread use of frequency reuse. 从而,同信道干扰成为限制系统性能的主要因素之一。 Thus, co-channel interference become one of the major factors limiting system performance. 现有的抑制同信道干扰的方法例如有干扰抑制合并法(InterferenceRejectionCombining,IRC),该方法需要获取有关干扰信号的信息,例如获取干扰和噪声空间协方差矩阵(Interferenceand NoiseSpatialCovarianceMatrix,IN-SCM)。 Conventional co-channel interference suppression method for example, interference rejection combining method (InterferenceRejectionCombining, IRC), which need to obtain information about the interference signal, interference and noise, for example, acquiring spatial covariance matrix (Interferenceand NoiseSpatialCovarianceMatrix, IN-SCM). 该IN-SCM矩阵可通过在参考信号的资源兀素上对接收信号进行估计而获得,由于干扰的时频选择特性,对于IN-SCM矩阵的估计一般基于限定的时域-频域区域。 The IN-SCM matrix may estimate the received signal is obtained on the resource by Wu prime reference signal, the interference due to the frequency selection characteristic, for estimating IN-SCM-based matrix generally defined time domain - frequency area.

[0003] 应该注意,上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、 完整的说明,并方便本领域技术人员的理解而阐述的。 [0003] It should be noted that the above description of background art is merely for convenience aspect of the present invention are clear and complete description and to facilitate understanding of the skilled in the art and set forth herein. 不能仅仅因为这些方案在本发明的 Just because of these programs in the present invention

背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。 Background Art section are set forth that the above technical solutions known to those skilled in the art.

发明内容 SUMMARY

[0004] 现有的干扰抑制合并法(IRC)为了提高估计IN-SCM矩阵的精确度,需要增加用于估计的限定时域-频域区域的参考信号的数量。 [0004] The conventional method of interference rejection combining (IRC) in order to improve the accuracy of the estimation matrix IN-SCM, defining the time domain needs to be increased for estimation - the number of the reference signal frequency area. 发明人在实现本发明的过程中发现,可用于进行估计的参考信号的数量通常不足,从而影响进行IN-SCM矩阵估计的质量。 In the process of implementing the present invention it found that the number of reference signals may be used to estimate generally insufficient, thus affecting the IN-SCM matrix were estimated quality. 并且,在一些应用场景下,例如在干扰与噪声比较低的情况下,进行IN-SCM矩阵估计的灵敏度损失将十分明显,此时利用干扰抑制合并法的接收机的性能相对于传统的将小区间干扰看作加性高斯白噪声(AdditiveWhiteGaussianNoise,AWGN)接收机的性能不会有任何的改善, 甚至性能会下降。 And, in some scenarios, for example in the interference and noise is relatively low, for IN-SCM matrix estimate loss of sensitivity will be very clear, this time using the interference suppression performance of the receiver with respect to the conventional combining method of the cell seen as interference between performance additive white Gaussian noise (AdditiveWhiteGaussianNoise, AWGN) receivers will not have any improvement, even performance will decline.

[0005] 本发明实施例提供一种干扰抑制装置、方法以及接收机,通过根据估计的IN-SCM 矩阵计算反映干扰与噪声比水平的度量值,自适应的对接收的数据和/或信道进行白化滤波,从而能够在不同的干扰场景下都获得良好的干扰抑制效果,保证系统的性能。 [0005] Embodiments of the present invention provides an interference suppression apparatus, a method and a receiver by IN-SCM matrix calculations reflect the estimated interference and noise levels than the metric, the adaptive received data and / or channel whitening filter, it is possible to obtain good interference suppression effect, guarantee the performance of the system under different interference scenarios.

[0006] 根据本发明实施例的第一方面,提供一种干扰抑制装置,所述装置包括:估计单元,所述估计单元用于估计传输带宽的各个区域的干扰和噪声空间协方差矩阵,其中,所述区域是指在频域上包括至少一个物理资源块,且在时域上包括至少一个子帧的时频范围; 第一计算单元,所述第一计算单元用于根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值,其中,所述度量值反映所述传输带宽内的干扰与噪声比的水平;滤波单元,所述滤波单元用于当所述度量值大于预先设定的阈值时,对接收的数据和/或信道进行白化滤波。 [0006] According to a first aspect of the embodiment of the present invention, there is provided An interference suppression device, the apparatus comprising: estimating means, the means for estimating interference and noise covariance matrix of each space region estimated transmission bandwidth, wherein , refers to the region in the frequency domain comprise at least one physical resource block, and when the time-frequency range comprising at least one subframe domain; a first calculating unit, the first calculating unit for respective regions based on the estimated spatial interference and noise covariance matrix calculated measures, wherein the level of interference and noise ratio within the transmission bandwidth metric reflecting the; filter unit, the filter unit is configured to, when the measurement value is greater than a preset when the threshold value, the received data and / or whitening filter channel.

[0007] 根据本发明实施例的第二方面,提供一种接收机,所述接收机包括根据本发明实施例的第一方面所述的干扰抑制装置。 [0007] According to a second aspect of the embodiment of the present invention, there is provided a receiver, the receiver comprises a first interference suppression means according to the aspect of the embodiment of the present invention described embodiment.

[0008] 根据本发明实施例的第三方面提供一种干扰抑制方法,所述方法包括:估计传输带宽的各个区域的干扰和噪声空间协方差矩阵,其中,所述区域是指在频域上包括至少一个物理资源块,且在时域上包括至少一个子帧的时频范围;根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值,其中,所述度量值反映所述传输带宽内的干扰与噪声比的水平;当所述度量值大于预先设定的阈值时,对接收的数据和/或信道进行白化滤波。 [0008] According to a third aspect provides an embodiment of the present invention provides a method for suppressing interference, the method comprising: estimating interference and noise covariance matrix of each space area of ​​transmission bandwidth, wherein said region refers to the frequency domain comprising at least one physical resource block, and includes a frequency range of at least one subframe in the time domain; spatial interference and noise covariance matrix calculated measure based on the estimated respective areas, wherein said metric reflecting the transmission bandwidth interference and noise ratio in the horizontal; when the measurement value is greater than a predetermined threshold value, the received data and / or whitening filter channel.

[0009] 本发明的有益效果在于:通过根据估计的IN-SCM矩阵计算反映干扰与噪声比水平的度量值,自适应的对接收的数据和/或信道进行白化滤波,从而能够在不同的干扰场景下都获得良好的干扰抑制效果,保证系统的性能。 [0009] Advantageous effects of the present invention is characterized: by IN-SCM matrix based on the estimated calculation reflected interference and noise metric than the level adaptive to the received data and / or channel whitening filter, it can be different interference at obtain good interference suppression effect, a scenario to ensure system performance.

[0010] 参照后文的说明和附图,详细公开了本发明的特定实施方式,指明了本发明的原理可以被采用的方式。 [0010] With reference to the description and drawings, particular embodiments disclosed detailed embodiment of the present invention, the embodiment specifies principles of the invention may be employed. 应该理解,本发明的实施方式在范围上并不因而受到限制。 It should be understood that the embodiments of the present invention is not limited correspondingly in scope. 在所附权利要求的精神和条款的范围内,本发明的实施方式包括许多改变、修改和等同。 Within the scope and spirit of the appended claims the terms, embodiments of the present invention includes many changes, modifications, and equivalents.

[0011] 针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用,与其它实施方式中的特征相组合,或替代其它实施方式中的特征。 [0011] For one embodiment described and / or illustrated features may be used in the same or similar manner in one or more other embodiments, be combined with features in other embodiments, other alternative embodiments or embodiment the characteristics.

[0012] 应该强调,术语"包括/包含"在本文使用时指特征、整件、步骤或组件的存在,但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。 [0012] It should be emphasized that the term "comprises / comprising" when used herein refers to features, integers, steps or components but does not preclude one or more other features, integers, steps or components or additional .

附图说明 BRIEF DESCRIPTION

[0013] 所包括的附图用来提供对本发明实施例的进一步的理解,其构成了说明书的一部分,用于例示本发明的实施方式,并与文字描述一起来阐释本发明的原理。 [0013] The accompanying drawings are included to provide a further understanding of embodiments of the present invention, which constitute part of the specification, illustrate the embodiment of the present invention is used, together with the description, explain the principles of the present invention. 显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。 Apparently, the drawings in the following description are only some embodiments of the present invention, those of ordinary skill in the art is concerned, without any creative effort, and can obtain other drawings based on these drawings. 在附图中: In the drawings:

[0014] 图1是本发明实施例1的干扰抑制装置的结构示意图; [0014] FIG. 1 is a schematic view of the interference suppression device of the embodiment of the present invention in Example 1;

[0015] 图2是本发明实施例1的第一计算单元的结构示意图; [0015] FIG. 2 is a schematic diagram of a first embodiment of a computing unit of the embodiment of the present invention;

[0016] 图3是本发明实施例1的第一计算单元计算度量值的方法流程图; [0016] FIG. 3 is a flowchart of a first metric calculation unit calculates Example 1 of the present invention;

[0017] 图4是本发明实施例1的第二计算单元的结构示意图; [0017] FIG. 4 is a schematic diagram of the second embodiment of the calculation unit 1 of the embodiment of the present invention;

[0018] 图5是本发明实施例1的干扰抑制装置进行干扰抑制的流程图; [0018] FIG. 5 is an embodiment of the present invention, the interference suppression device of Example 1 is a flowchart of interference suppression;

[0019] 图6是本发明实施例2的接收机的结构示意图; [0019] FIG. 6 is a schematic diagram of the receiver according to embodiment 2 of the present invention;

[0020] 图7是本发明实施例2的接收机的系统构成的一示意框图; [0020] FIG. 7 is a schematic block diagram of a receiver of the system configuration of Example 2 of the present invention;

[0021] 图8是本发明实施例3的干扰抑制方法的流程图; [0021] FIG 8 is a flowchart of a method of interference suppression according to the third embodiment of the present invention;

[0022] 图9是本发明实施例4的干扰抑制方法的流程图。 [0022] FIG. 9 is a flowchart of a method of interference suppression in Example 4 of the present invention.

具体实施方式 Detailed ways

[0023] 参照附图,通过下面的说明书,本发明的前述以及其它特征将变得明显。 [0023] Referring to the drawings, the following description, the foregoing and other features of the present invention will become apparent. 在说明书和附图中,具体公开了本发明的特定实施方式,其表明了其中可以采用本发明的原则的部分实施方式,应了解的是,本发明不限于所描述的实施方式,相反,本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。 In the description and drawings, particular embodiments specifically disclosed embodiment of the present invention, which shows the principles of the invention may be employed from the first embodiment, it is understood that the present invention is not limited to the described embodiments, on the contrary, the present invention includes all modifications falling within the scope of the appended claims, modifications and equivalents thereof.

[0024] 实施例1 [0024] Example 1

[0025] 图1是本发明实施例1的干扰抑制装置的结构示意图。 [0025] FIG. 1 is a schematic view of the interference suppression device of the embodiment of Example 1 of the present invention. 如图1所示,该装置100 包括:估计单元101、第一计算单元102以及滤波单元103,其中, As shown in FIG. 1, the apparatus 100 comprises: estimating unit 101, a first calculating unit 102 and a filtering unit 103, wherein,

[0026] 估计单元101用于估计传输带宽的各个区域的干扰和噪声空间协方差矩阵,其中,该区域是指在频域上包括至少一个物理资源块,且在时域上包括至少一个子帧的时频范围; [0026] unit 101 for estimating interference and noise covariance matrix of each space region estimated transmission bandwidth, wherein the region is intended to include at least one physical resource block in the frequency domain, and includes at least one subframe in the time domain time-frequency range;

[0027] 第一计算单元102用于根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值,其中,该度量值反映传输带宽内的干扰与噪声比的水平; [0027] The first calculating unit 102 for spatial interference and noise covariance matrix calculated measure based on the estimated each region, wherein, the measure reflects the level of interference and noise ratio of the transmission bandwidth;

[0028] 滤波单元103用于当该度量值大于预先设定的阈值时,对接收的数据和/或信道进行白化滤波。 [0028] The filtering unit 103 is used when the metric is greater than a predetermined threshold value, the received data and / or whitening filter channel.

[0029] 由上述实施例可知,通过根据估计的IN-SCM矩阵计算反映干扰与噪声比水平的度量值,自适应的对接收的数据和/或信道进行白化滤波,从而能够在不同的干扰场景下都获得良好的干扰抑制效果,保证系统的性能。 [0029] apparent from the above embodiment, the IN-SCM matrix based on the estimated calculation reflected interference noise ratio measure level adaptive to the received data and / or channel whitening filter, thereby scene different interference under obtain good interference suppression effect, to ensure system performance.

[0030] 在本实施例中,该传输带宽可以是系统带宽或物理下行共享信道(Physical DownlinkSharedChannel,PDSCH)的带宽。 [0030] In the present embodiment, the transmission bandwidth may be the bandwidth of the system bandwidth or a physical downlink shared channel (Physical DownlinkSharedChannel, PDSCH) is.

[0031] 该区域是指在频域上包括至少一个物理资源块,且在时域上包括至少一个子帧的时频范围,例如,该区域是指在频域上包括一个物理资源块,且在时域上包括一个子帧的时频范围,但本发明实施例并不对该区域的范围进行限制。 [0031] The area refers to the frequency domain comprises at least one physical resource block, and includes a frequency range of at least one subframe in the time domain, e.g., the zone is meant to include a physical resource block in the frequency domain, and when the sub-frame comprises a time domain in the frequency range, but the present invention is not to be limiting embodiment of the range of the region.

[0032] 在本实施例中,可使用现有的任一种方法估计传输带宽的各个区域的干扰和噪声空间协方差矩阵(IN-SCM)。 [0032] In the present embodiment, the space may be estimated interference and noise covariance matrix (IN-SCM) transmission bandwidth of each region using any conventional method. 以下对本发明实施例采用的估计传输带宽的各个区域的IN-SCM矩阵的方法进行示例性的说明。 IN-SCM matrix of each method of estimation of the transmission bandwidth region employed in the embodiment of the present invention will be described exemplary.

[0033] 例如,在频域上第i个区域的IN-SCM矩阵可利用以下的公式(1)和(2)计算得到: [0033] For example, in the first matrix of the frequency domain IN-SCM i zones may be (1) (2) obtained and calculated using the following formula:

Figure CN104852748AD00061

[0036] 其中,把> 表示在频域上第i个区域估计的IN-SCM矩阵,Nks 表示各个区域内使用的参考信号所占资源元素的数量,M表示在用于估计干扰和噪声的参考信号的资源元素(k,1)上复用的服务小区的参考信号数量,及&以力和#'^,/)分别表示来自服务小区的第h个参考信号端口的估计信道响应矢量和参考信号序列;Yks (k,l)表示在参考信号的资源元素(k,1)上的接收信号矢量;其中,取决于具体的传输模式,用于估计IN-SCM矩阵的参考信号可以是小区参考信号(Cell-specificReferenceSignal,CRS)或解调参考信号(DemodulationReferenceSignal,DM_RS);k,1分别表示子载波系数以及OFDM符号系数, i,k,1均为非负的整数。 [0036] wherein, the> represents the first time in the frequency domain of the i-th region estimation matrix IN-SCM, Nks represents the number of resource elements occupied by the reference signal used within each region, M is a reference for estimating interference and noise resource element signals (k, 1) the number of reference signals multiplexed serving cell, and & a force and # '^, /) denote estimated channel h-th reference signal port from the serving cell response vector and the reference signal sequence; Yks (k, l) represents a received signal vector on the resource elements (k, 1) of the reference signal; wherein, depending on the particular transmission mode, the reference signal estimate for iN-SCM matrix may be a cell reference signal (Cell-specificReferenceSignal, CRS) or demodulation reference signal (DemodulationReferenceSignal, DM_RS); k, 1 denote OFDM symbols and subcarriers coefficient coefficient, i, k, 1 are non-negative integers. 其中,对于基于DM-RS的IN-SCM估计,表示预编码的信道响应,表示经过扩频的参考信号序列。 Wherein, an estimate based on DM-RS-IN-SCM, represent precoded channel response indicates reference signal sequence after spreading.

[0037] 在本实施例中,第一计算单元102用于根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值,其中,该度量值反映传输带宽内的干扰与噪声比的水平。 [0037] In the present embodiment, the first calculating unit 102 according to noise and interference spatial covariance matrix of the respective areas calculated measure estimate, wherein the measure reflects the level of interference and noise ratio of the transmission bandwidth. 在本发明实施例中,可使用现有的任一种方法计算该度量值。 In an embodiment of the present invention, the measure may be calculated using any conventional method. 以下对本发明实施例采用的计算度量值的方法进行示例性的说明。 An exemplary method is described of calculating the following values ​​employed in the embodiment of the present invention.

[0038] 图2是本实施例的第一计算单元的结构示意图。 [0038] FIG. 2 is a schematic structural diagram of a first embodiment of the calculating unit of the present embodiment. 如图2所示,第一计算单元102 包括第三计算单元201、第四计算单元202以及处理单元203,其中, 2, the first calculation unit 102 includes a third calculating unit 201, calculation unit 202, and the fourth processing unit 203, wherein,

[0039] 第三计算单元201用于计算各个区域的干扰和噪声空间协方差矩阵在频域上的平均值; [0039] The third calculation unit 201 for calculating the average interference and noise covariance matrix of each space region in the frequency domain;

[0040] 第四计算单元202用于根据各个区域的干扰和噪声空间协方差矩阵在频域上的平均值计算瞬时度量值; [0040] The fourth calculation unit 202 for calculating the average value of the instantaneous measure of the interference regions respective spatial covariance matrix and the noise in the frequency domain;

[0041] 处理单元204用于对该瞬时度量值进行时域平滑处理,以获得所述度量值。 [0041] The processing unit 204 for performing time-domain smoothing the instantaneous metric, the metric to obtain.

[0042] 图3是本实施例的第一计算单元计算度量值的方法流程图。 [0042] FIG. 3 is a process for calculating the first metric calculation unit of the present embodiment. FIG. 如图3所示,该方法包括: As shown in FIG. 3, the method comprising:

[0043] 计算各个区域的干扰和噪声空间协方差矩阵在频域上的平均值; [0043] The average value calculation and noise interference spatial covariance matrix of each region in the frequency domain;

[0044] 根据各个区域的干扰和噪声空间协方差矩阵在频域上的平均值计算瞬时度量值; [0044] The metric calculating the instantaneous mean value of each region and the interference spatial covariance matrix of noise in the frequency domain;

[0045] 对该瞬时度量值进行时域平滑处理,以获得该度量值。 [0045] When the instantaneous value of the domain smoothing process to obtain the measure.

[0046] 在本实施例中,可使用现有的任一种方法计算各个区域的干扰和噪声空间协方差矩阵在频域上的平均值,例如,可利用以下的公式(3)计算得到该平均值及: [0046] In the present embodiment, the interference and noise space may calculate the average of the respective co-variance matrix of the region in the frequency domain using either conventional methods, for example, by the following equation (3) is calculated to give the and the average of:

Figure CN104852748AD00071

[0048]其中,NMgim表示传输带宽内该区域的数量,i为正整数,且1彡i彡队_n。 [0048] wherein, NMgim represents the number of transmission bandwidth within the region, i is a positive integer, and 1 team San i San _n.

[0049] 在获得该平均值及,可使用现有的任一种方法计算瞬时度量值。 [0049] In obtaining the average value and may be used to calculate the instantaneous value of any of the conventional method. 以下对本发明实施例采用的计算瞬时度量值的方法进行示例性的说明。 An exemplary method will be described calculating the instantaneous metric employed in the embodiment of the present invention.

[0050] 例如,可利用以下的公式(4)计算干扰和噪声的功率PI+N: [0050] For example, (4) calculates the power of interference and noise PI + N using the following equation:

Figure CN104852748AD00072

[0052] 其中,瓦",,,">表示矩阵1的第!11行、第111列的元素,1彡111彡乂,乂表示接收天线的数量。 [0052] wherein W ',,,'> denotes a matrix of! 11 row 1, column elements 111, 111 1 San San qe, qe denotes the number of receive antennas.

[0053] 在获得干扰和噪声的功率后,可利用以下的公式(5)计算矩阵及的非对角元素的模的平方的最大值3 : [0053] After obtaining the power of interference and noise, may be (5) calculating the maximum value of 3 and a matrix of squares of non-diagonal elements of the die using the following equation:

Figure CN104852748AD00073

[0055] 其中,瓦,;>表示矩阵及的第i行、第j列的元素,i,j为正整数,1彡i,j彡Nk。 [0055] wherein W,;> represents a matrix and the i-th row, j-th column element, i, j is a positive integer, 1 San i, j San Nk.

[0056] 然后,可利用以下的公式(6)计算瞬时度量值a: [0056] Then, (6) a metric calculating an instantaneous available using the following equation:

Figure CN104852748AD00074

[0058] 其中,@表示根据公式(5)计算得到的矩阵! [0058] where @ denotes (5) the matrix obtained is calculated according to the formula! 的非对角元素的模的平方的最大值, PI+N表示根据公式(4)计算得到的干扰和噪声的功率。 Non-maximum value of the square of the diagonal elements of the mold, PI + N indicating the calculated interference and noise obtained according to the formula (4) power.

[0059] 在本实施例中,在获得该瞬时度量值之后,可使用现有的任一种方法对该瞬时度量值进行时域平滑处理,以获得反映传输带宽内的干扰与噪声比水平的度量值。 [0059] In the present embodiment, after obtaining the instantaneous metric, the smoothing processing using the domain A method of any conventional measure the transient to obtain reflect the interference and noise levels than transmission bandwidth metric. 例如,可利用以下的公式(7)进行时域平滑处理: For example, the smoothing process may time domain by the following equation (7):

Figure CN104852748AD00081

[0061] 其中,a(n)表示第n个子帧的度量值,n表示时域遗忘因子,〇<n< 1,a表示根据公式(6)计算得到的瞬时度量值。 [0061] where, A (n) represents a measure of the n th frame, n represents the forgetting factor time-domain, square <n <1, a represents the instantaneous metric according to the equation (6) is calculated.

[0062] 在本实施例中,在获得该度量值之后,滤波单元103用于当该度量值大于预先设定的阈值时,对接收的数据和/或信道进行白化滤波。 [0062] In the present embodiment, after obtaining the metric, the filtering unit 103 is used when the metric is greater than a predetermined threshold value, the received data and / or whitening filter channel.

[0063] 在本实施例中,可在干扰抑制装置中单独设置一判断单元,用于判断该度量值是否大于预先设定的阈值;也可不单独设置该判断单元,由滤波单元或第一计算单元实现该判断单元的功能。 [0063] In the present embodiment, the interference suppression may be provided in a separate apparatus determination means for determining whether the metric is greater than a predetermined threshold value; the determining unit may not be provided separately, or the first calculated by the filtering means It means realizing functions of the determination unit. 本发明实施例不对此进行限制。 Embodiments of the invention is not to be limiting.

[0064] 在本实施例中,在判断为该度量值大于预先设定的阈值的情况下,可使用现有的任一种方法对接收的数据和/或信道进行白化滤波。 [0064] In the present embodiment, when it is determined that the degree of magnitude greater than the threshold value set in advance, the data can be received and / or channel whitening filter using any conventional method. 以下对本发明实施例采用的白化滤波方法进行示例性的说明。 Whitening method employed in the embodiment of the present invention will be described exemplary.

[0065] 在本实施例中,该干扰抑制装置还可以包括第二计算单元104,其中, [0065] In the present embodiment, the interference suppression apparatus may further comprise a second calculation unit 104, wherein,

[0066] 该第二计算单元104用于根据估计的各个区域的IN-SCM矩阵计算进行白化滤波的滤波权值。 [0066] The second calculation unit 104 for performing filtering based whitening filter weights IN-SCM matrix calculating respective regions estimated. 该第二计算单元104是可选部件,在图1中用虚线框表示。 The second calculation unit 104 is an optional component, is shown in FIG. 1 by a dashed box.

[0067] 图4是本实施例的第二计算单元的结构示意图。 [0067] FIG. 4 is a schematic diagram of the second calculation unit of the present embodiment. 如图4所示,第二计算单元104 包括分解单元401以及转换单元402,其中, 4, the second calculation unit 104 includes a decomposition unit 401 and a conversion unit 402, wherein,

[0068] 该分解单元401用于根据估计的各个区域的IN-SCM矩阵进行乔里斯基(Cholesky)分解,获得下三角矩阵; [0068] The unit 401 for performing Cholesky decomposition (the Cholesky) decomposition according to the IN-SCM matrix of each region estimated to obtain a lower triangular matrix;

[0069] 该变换单元402用于对该下三角矩阵进行矩阵的逆变换,获得进行白化滤波矩阵,即获得该滤波权值。 [0069] The transformation unit 402 for the lower triangular matrix inverse transformation matrix to obtain a whitening filter matrix, i.e., the filter weight is obtained.

[0070]其中,分解单元401可利用以下的公式(8)进行乔里斯基(Cholesky)分解: [0070] wherein the Cholesky decomposition unit 401 may be (the Cholesky) using the following equation (8) Decomposition:

Figure CN104852748AD00082

[0072] 其中,/T表示在频域上第i个区域估计的IN-SCM矩阵,L(i)表示分解后获得的下三角矩阵。 [0072] wherein, / T represents the estimated first frequency domain i-th area IN-SCM matrix, L (i) represents the lower triangular matrix obtained after decomposition.

[0073] 在获得该下三角矩阵L(i)后,变换单元402可利用以下的公式(9)进行矩阵逆变换: [0073] After obtaining the lower triangular matrix L (i), the transformation unit 402 may perform inverse transformation matrix using the following equation (9):

[0074]F⑴= (Lw)-1 (9) [0074] F⑴ = (Lw) -1 (9)

[0075] 其中,F(i)表示在频域上第i个区域的白化滤波矩阵,i为正整数。 [0075] where, F (i) represents the whitening filter matrix for the i-th area in the first frequency domain, i is a positive integer.

[0076] 在获得该白化滤波矩阵F(i)后,滤波单元103可根据该矩阵F(i),利用以下的公式(10)和/或公式(11)对接收的数据和/或信道进行白化滤波: [0076] After obtaining the whitening filter matrix F (i), the filter unit 103 according to this matrix F (i), (10) and / or formula (11) the received data and / or channels using the following formulas whitening filter:

[0077]Y,data(k,1)=F⑴Ydata(IU) (10) [0077] Y, data (k, 1) = F⑴Ydata (IU) (10)

Figure CN104852748AD00083

[0079]其中,Ydata(k,1)和#data(M)分别表示在数据资源元素(k,1)上的接收信号矢量和估计信道响应矩阵,HO:,/)和#^(〖,/)分别表示进行白化滤波后的在数据资源元素(k,1)上的接收信号矢量和估计信道响应矩阵。 [0079] wherein, Ydata (k, 1) and #data (M) represent the data resource elements (k, 1) received signal vector and the estimated channel on the response matrix, HO:, /) and # ^ (〖, /) denote the received signal vector and channel estimation on a data resource elements (k, 1) is performed after the whitening filter response matrix.

[0080] 在本实施例中,用于判断度量值大小的阈值可根据实际情况和实际需要预先设定。 [0080] In the present embodiment, a threshold value for determining the size of the metric can be preset according to actual situation and the actual needs. 例如,该干扰抑制装置还可以包括阈值确定单元105,其中, For example, the apparatus may further comprise interference suppression threshold value determination unit 105, wherein,

[0081] 阈值确定单元105用于根据传输带宽内该区域的数量、各个区域内使用的参考信号的数量以及接收天线的数量中的一个或多个确定该预先设定的阈值。 [0081] The threshold value determining unit 105 according to the number of areas within the transmission bandwidth, a number of reference signals used in the respective areas and the number of receiving antennas in one or more of the determination threshold set in advance.

[0082] 在本实施例中,该阈值确定单元为可选部件,在图1中用虚线框表示。 [0082] In the present embodiment, the threshold determination unit is an optional feature, represented in FIG. 1 by dashed box.

[0083] 其中,阈值确定单元105可利用以下的公式(12)确定该阈值TH: [0083] wherein the threshold determination unit 105 may be (12) The threshold value TH is determined using the following formula:

[0084]TH=f(Nregion,NES_region,Ne) (12) [0084] TH = f (Nregion, NES_region, Ne) (12)

[0085] 其中,Nregim表示传输带宽内该区域的数量,Nks _"表示各个区域内使用的参考信号所占资源元素的数量,Nk表示接收天线的数量。 [0085] wherein, Nregim represents the number of the region in the transmission bandwidth, Nks _ "represents the number of resource elements occupied by the reference signal used within each region, Nk denotes the number of receive antennas.

[0086] 例如,当该区域在频域上包括一个物理资源块、在时域上包括一个子帧时,该阈值TH可利用以下的公式(13)表示: [0086] For example, when the region comprises a physical resource block in the frequency domain, including one subframe in the time domain, the threshold TH may utilize the following equation (13):

Figure CN104852748AD00091

[0088] 其中,Nregim表示该区域的数量,Nks 表示各个区域内使用的参考信号所占资源元素的数量,Nk表示接收天线的数量;^Vregim < 表示下行链路的物理资源块的数量;表示下行链路的物理资源块的最大数量;a(NKSMgim,NK)和b(NRS_regiQn,Nr)表不NRS_regiQn 和Nr 的变里,s(Nr)表不Nr 的变里;LUT(Nregian,NRS_regiQn,Nr)表示基于^regionj ^ES_region和Nk的查找表。 [0088] wherein, Nregim represents the number of the region, Nks occupied by the reference signal represents the number of resource elements used within each region, Nk denotes the number of receive antennas; ^ Vregim <denotes the number of physical resource blocks of the downlink; represents the maximum number of physical resource blocks of the downlink; becomes a (NKSMgim, NK), and b (NRS_regiQn, Nr) and the table does not NRS_regiQn Nr's, s (Nr) in the table does not become Nr; LUT (Nregian, NRS_regiQn, nr) represents the basis ^ regionj ^ ES_region and Nk lookup table. 在本实施例中,可设定X=6,但本发明实施例不限于该取值。 In the present embodiment, it may be set to X = 6, embodiments of the present invention is not limited to this value.

[0089] 以下对本发明实施例中利用公式(13)获得阈值TH进行示例性的说明。 Example TH threshold value is obtained using equation will be described an exemplary [0089] embodiment of the present invention, the following (13).

[0090] 例如,在接收天线的数量为2的情况下,8卩NK=2的情况下, [0090] For example, in the case where the number of receiving antennas is 2, 8 Jie NK = 2 case,

[0091]如果用于IN-SCM矩阵估计的区域数量NMgim彡6,那么NKSMgim和Nk的变量a(Nks_regi(m,NK)和b(NKSr_n,NK)可以如表1 所示,且e⑵=0• 105。 [0091] If the number of areas NMgim San IN-SCM matrix for estimating 6, the variable Nk NKSMgim and a (Nks_regi (m, NK), and b (NKSr_n, NK) may be as shown in Table 1, and e⑵ = 0 • 105.

[0092]表1 [0092] TABLE 1

[0093] [0093]

Figure CN104852748AD00101

[0094] 如果用于IN-SCM矩阵估计的区域数量N,egim〈6,那么阈值TH可利用如下的查找表(表2)获得。 [0094] If the number of areas for IN-SCM matrix estimate N, egim <6, then the threshold value TH may be obtained using the following lookup table (Table 2).

[0095]表2 [0095] TABLE 2

Figure CN104852748AD00111

[0097] 例如,在接收天线的数量为4的情况下,8卩NK=4的情况下, [0097] For example, in the case where the number of reception antennas is 4, the case 8 Jie NK = 4,

[0098] 如果用于IN-SCM矩阵估计的区域数量N,egim彡6,那么NKS_,_n和Nk的变量a(Nks_ r_n,Nk)和b(Nks-r_n,Nk)可以如表3 所示,且e(4) =0• 19。 [0098] zone number N if the IN-SCM matrix for estimating, egim San 6, then NKS _, _ n and Nk variable a (Nks_ r_n, Nk), and b (Nks-r_n, Nk) may be as shown in Table 3 and e (4) = 0 • 19.

[0099] 表3 [0099] TABLE 3

[0100] [0100]

Figure CN104852748AD00121

[0101] 如果用于IN-SCM矩阵估计的区域数量NMgim〈6,那么阈值TH可利用如下的查找表(表4)获得。 [0101] If the number of regions NMgim IN-SCM matrix for estimating <6, the threshold value TH may be obtained using the following lookup table (Table 4).

[0102]表4 [0102] TABLE 4

Figure CN104852748AD00131

[0104] 以上仅是对本发明实施例的阈值TH的取值进行示例性的说明,本发明实施例并不限于这些取值。 [0104] These are only embodiments of the present invention the threshold value TH values ​​will be described exemplary embodiments of the present invention is not limited to these values.

[0105] 图5是本实施例的干扰抑制装置进行干扰抑制的流程图。 [0105] FIG. 5 is a disturbance suppressing apparatus of the present embodiment is a flowchart of interference suppression. 如图5所示,估计单元101根据来自服务小区的第h个参考信号端口的估计信道响应矢量力(</)和参考信号序列以及在参考信号的资源元素(k,l)上的接收信号矢量Yks (k,l),计算获得各个区域的IN-SCM矩阵,第一计算单元102根据各个区域的IN-SCM矩阵Pw 计算获得反映传输带宽内的干扰与噪声比的水平的度量值a(n)以及干扰和噪声功率PI+N,当该度量值a (n)>TH时,第二计算单元104和滤波单元103工作,第二计算单元104根据各个区域的IN-SCM矩阵计算进行白化滤波的滤波权值,即滤波矩阵, 滤波单元103根据该滤波矩阵对接收的数据{Ydata(k,1)}和信道•(及data〇U;)}进行白化滤波,获得滤波后的数据fFd'ata (M)丨和信道(M)}。 5, the estimating unit 101 estimates the channel response based on the h-th reference signal port of the force vector from the serving cell (</) and a reference signal sequence and received signal resource elements (k, l) of the reference signal vector Yks (k, l), obtained by calculation iN-SCM matrix of each region, a first calculation unit 102 calculates Pw according to iN-SCM matrix of each region to obtain a measure of the level of interference and noise within the transmission bandwidth ratio reflects a ( n) and the interference and noise power PI + N, when the metric a (n)> TH, the second calculating means 103 operates and filtering unit 104, a second calculation unit 104 according to the iN-SCM whitening matrix calculation of each area data fFd} whitening filter to obtain filtered; and the filtered weight median filtering, i.e. filtering matrix, the filtering unit 103 {Ydata (k, 1)} • and a channel (and data〇U) according to the received data filtering matrix 'ata (M) and Shu channel (M)}.

[0106] 因此,当该度量值a(n)>TH时,输出的数据{Y〃data(k,1)}和信道{H〃data(k,1)} 为滤波后的数据{Y'data(k,l)}和信道输出的干扰和噪声功率沪(";)为常数1;当该度量值a(n)STH时,第二计算单元104和滤波单元103不工作,输出的数据{Y"data(k,1)}和信道{H"data(k,1)}为接收的数据{Ydata(k,1)}和信^tKta(M)I输出的干扰和噪声功率&(«)为第一计算单元102计算获得的干扰和噪声功率PI+N。 [0106] Thus, when the metric a (n)> TH, the output data {Y〃data (k, 1)} and {H〃data channel (k, 1)} of the filtered data {Y ' data (k, l)} and the channel output interference and noise power Shanghai ( ';) is a constant 1; when the metric a (n) STH, second calculating unit 104 and the filtering unit 103 does not work, the output data {Y "data (k, 1)} and the channel {H" data (k, 1)} for the received data {Ydata (k, 1)} and channel ^ tKta (M) I output from the interference and noise power & ( « ) calculates interference and noise power PI + N obtained by the first calculating unit 102.

[0107] 由上述实施例可知,通过根据估计的IN-SCM矩阵计算反映干扰与噪声比水平的度量值,自适应的对接收的数据和/或信道进行白化滤波,从而能够在不同的干扰场景下都获得良好的干扰抑制效果,保证系统的性能。 [0107] apparent from the above embodiment, the IN-SCM matrix based on the estimated calculation reflected interference noise ratio measure level adaptive to the received data and / or channel whitening filter, thereby scene different interference under obtain good interference suppression effect, to ensure system performance.

[0108] 实施例2 [0108] Example 2

[0109] 图6是本发明实施例2的接收机的结构示意图,如图6所示,该接收机600包括干扰抑制装置601,该干扰抑制装置601的结构与功能与实施例1中的记载相同,此处不再重复。 [0109] FIG. 6 is a schematic structure of a receiver according to embodiment 2 of the present invention, shown in Figure 6, the receiver 600 includes an interference suppression unit 601, the structure and function of interference suppression device 601 and the embodiment described in Example 1 the same will not be repeated here.

[0110] 图7是本发明实施例2的接收机700的系统构成的一示意框图。 [0110] FIG. 7 is a schematic block diagram of a receiver system 700 constituting the embodiment 2 of the present invention. 如图7所示,接收机700可以包括中央处理器701和存储器702 ;存储器702耦合到中央处理器701。 As shown in FIG 7, the receiver 700 may include a central processor 701 and memory 702; a memory 702 coupled to the central processor 701. 该图是示例性的;还可以使用其他类型的结构,来补充或代替该结构,以实现电信功能或其他功能。 This figure is exemplary; may also be used other types of structures, in addition to or instead of this configuration, in order to achieve the telecommunications functions or other functions.

[0111] 如图7所示,该电子设备700还可以包括:通信模块703、输入单元704、显示器705、电源706。 [0111] As shown in FIG 7, the electronic device 700 may further include: a communication module 703, an input unit 704, a display 705, power supply 706.

[0112] 在一个实施方式中,干扰抑制装置的功能可以被集成到中央处理器701中。 [0112] In one embodiment, the interference suppression means may be integrated into the central processor 701. 其中, 中央处理器701可以被配置为:估计传输带宽的各个区域的干扰和噪声空间协方差矩阵, 其中,所述区域是指在频域上包括至少一个物理资源块,且在时域上包括至少一个子帧的时频范围;根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值,其中,所述度量值反映所述传输带宽内的干扰与噪声比的水平;当所述度量值大于预先设定的阈值时,对接收的数据和/或信道进行白化滤波。 Wherein the central processor 701 may be configured to: estimate interference and noise covariance matrix of each space area of ​​transmission bandwidth, wherein said region is intended to include at least one physical resource block in the frequency domain, in time domain and comprising at least one subframe in the time-frequency range; the interference and noise space covariance matrix calculated measure respective areas estimates, wherein the level of interference and noise ratio within the transmission bandwidth of said metric reflecting; if the metric when the value is greater than a threshold value set in advance, the received data and / or whitening filter channel.

[0113] 其中,中央处理器701还可以被配置为:根据估计的各个区域的干扰和噪声空间协方差矩阵计算进行白化滤波的滤波权值。 [0113] wherein, the central processor 701 may be further configured to: filter weights whitening filter according to the interference and noise covariance matrix calculating respective spatial region RA estimated.

[0114] 其中,所述根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值,包括: 计算各个区域的干扰和噪声空间协方差矩阵在频域上的平均值;根据各个区域的干扰和噪声空间协方差矩阵在频域上的平均值计算瞬时度量值;对所述瞬时度量值进行时域平滑处理,以获得所述度量值。 [0114] wherein, according to said estimated interference and noise space covariance matrix calculated measure each region, comprising: calculating interference and noise space co-variance matrix of the average for all regions in the frequency domain; the respective regions according to the interference and the average value of the noise covariance matrix in the spatial frequency domain to calculate the instantaneous metric; smoothing processing for the instantaneous metric, the metric to obtain.

[0115] 其中,中央处理器701还可以被配置为:根据传输带宽内所述区域的数量、各个区域内使用的参考信号所占资源元素的数量以及接收天线的数量中的至少一个确定所述预先设定的阈值。 [0115] wherein, the central processor 701 may be further configured to: according to the number of regions of the transmission bandwidth, number of antennas and receiving the reference signal resource elements occupied in each region using at least one of said determined a preset threshold value.

[0116] 在另一个实施方式中,干扰抑制装置可以与中央处理器701分开配置,例如可以将干扰抑制装置配置为与中央处理器701连接的芯片,通过中央处理器的控制来实现干扰抑制装置的功能。 [0116] In another embodiment, the interference suppression means may be arranged separately from the central processor 701, for example, may be configured as a chip interference suppression means connected to the central processor 701 to implement interference suppression means by the control of the central processor function.

[0117] 在本实施例中电子设备700也并不是必须要包括图7中所示的所有部件 [0117] In the present embodiment, the electronic device 700 is also not necessary to include all the components shown in FIG. 7

[0118] 如图7所示,中央处理器701有时也称为控制器或操作控件,可以包括微处理器或其他处理器装置和/或逻辑装置,中央处理器701接收输入并控制电子设备700的各个部件的操作。 [0118] As shown in FIG. 7, sometimes referred to as a central processor 701 controls operation of the controller or may include a microprocessor or other processor device and / or a logic device, a central processing unit 701 receives an input device 700 and the control electronics the operations of the respective components.

[0119] 存储器702,例如可以是缓存器、闪存、硬驱、可移动介质、易失性存储器、非易失性存储器或其它合适装置中的一种或更多种。 [0119] memory 702, for example, a buffer, a flash memory, hard drive, removable media, a volatile memory, non-volatile memory or other suitable device or more. 可储存上述与失败有关的信息,此外还可存储执行有关信息的程序。 Store information about the failure, but can also store information about program execution. 并且中央处理器701可执行该存储器702存储的该程序,以实现信息存储或处理等。 And the central processor 701 can execute the program stored in the memory 702, to enable the information storage or processing. 其他部件的功能与现有类似,此处不再赘述。 Other functional components similar to the conventional, not further described herein. 接收机700的各部件可以通过专用硬件、固件、软件或其结合来实现,而不偏离本发明的范围。 Each member receiver 700 may be implemented by dedicated hardware, firmware, software, or a combination thereof, without departing from the scope of the invention.

[0120] 由上述实施例可知,通过根据估计的IN-SCM矩阵计算反映干扰与噪声比水平的度量值,自适应的对接收的数据和/或信道进行白化滤波,从而能够在不同的干扰场景下都获得良好的干扰抑制效果,保证系统的性能。 [0120] apparent from the above embodiment, the IN-SCM matrix based on the estimated calculation reflected interference noise ratio measure level adaptive to the received data and / or channel whitening filter, thereby scene different interference under obtain good interference suppression effect, to ensure system performance.

[0121] 实施例3 [0121] Example 3

[0122] 图8是本发明实施例3的干扰抑制方法的流程图,对应于实施例1的干扰抑制装置。 [0122] FIG 8 is a flowchart of a method of interference suppression according to the third embodiment of the present invention, corresponding to Example 1 of the interference suppression device embodiment. 如图8所示,该方法包括: 8, the method comprising:

[0123] 步骤801 :估计传输带宽的各个区域的干扰和噪声空间协方差矩阵,其中,该区域是指在频域上包括至少一个物理资源块,且在时域上包括至少一个子帧的时频范围; [0123] Step 801: estimating interference and noise space covariance matrix of each region of the transmission bandwidth, wherein the region is intended to include at least one physical resource block in the frequency domain, and includes at least one subframe in the time domain frequency range;

[0124] 步骤802 :根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值,其中, 该度量值反映所述传输带宽内的干扰与噪声比的水平; [0124] Step 802: spatial interference and noise covariance matrix calculated measure based on the estimated each region, wherein, the measure reflects the level of interference and noise ratio within the transmission bandwidth;

[0125] 步骤803:当该度量值大于预先设定的阈值时,对接收的数据和/或信道进行白化滤波。 [0125] Step 803: when the metric is greater than a predetermined threshold value, the received data and / or whitening filter channel.

[0126] 在本实施例中,估计传输带宽的各个区域的干扰和噪声空间协方差矩阵的方法、 根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值的方法、对接收的数据和/ 或信道进行白化滤波的方法以及确定该阈值的方法与实施例1中的记载相同,此处不再重复。 [0126] In the present embodiment, estimation of interference and noise space covariance matrix of each region of the transmission bandwidth, the interference of each region estimation and the method of covariance matrices calculated measure noise spatial association, data received and / or the channel whitening filter and a method of determining the threshold value is the same as the embodiment described in Example 1, will not be repeated here.

[0127] 由上述实施例可知,通过根据估计的IN-SCM矩阵计算反映干扰与噪声比水平的度量值,自适应的对接收的数据和/或信道进行白化滤波,从而能够在不同的干扰场景下都获得良好的干扰抑制效果,保证系统的性能。 [0127] apparent from the above embodiment, the IN-SCM matrix based on the estimated calculation reflected interference noise ratio measure level adaptive to the received data and / or channel whitening filter, thereby scene different interference under obtain good interference suppression effect, to ensure system performance.

[0128] 实施例4 [0128] Example 4

[0129] 图9是本发明实施例4的干扰抑制方法的流程图,对应于实施例1的干扰抑制装置。 [0129] FIG. 9 is a flowchart of a method of interference suppression in Example 4 of the present invention, corresponding to Example 1 of the interference suppression device embodiment. 如图9所示,该方法包括: 9, the method comprising:

[0130] 步骤901:估计传输带宽的各个区域的干扰和噪声空间协方差矩阵,其中,该区域是指在频域上包括至少一个物理资源块,且在时域上包括至少一个子帧的时频范围; [0130] Step 901: estimating interference and noise space covariance matrix of each region of the transmission bandwidth, wherein the region is intended to include at least one physical resource block in the frequency domain, and includes at least one subframe in the time domain frequency range;

[0131] 步骤902:根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值,其中, 该度量值反映所述传输带宽内的干扰与噪声比的水平; [0131] Step 902: The spatial interference and noise covariance matrix calculated measure respective areas estimated, wherein the measure reflects the level of interference and noise ratio within the transmission bandwidth;

[0132] 步骤903:根据传输带宽内所述区域的数量、各个区域内使用的参考信号所占资源元素的数量以及接收天线的数量中的一个或多个确定该预先设定的阈值; [0132] Step 903: The number of regions within the transmission bandwidth, the number of resource elements occupied by the reference signal in each region and using the number of receive antennas of one or more of the predetermined threshold value is determined;

[0133] 步骤904:判断该度量值是否大于该阈值;当判断结果为"是"时,进入步骤1205, 当判断结果为"否"时,直接输出; [0133] Step 904: determining whether the metric is greater than the threshold value; when the determination result is "YES", the process proceeds to step 1205, when the judgment result is "NO", the direct output;

[0134] 步骤905:对接收的数据和/或信道进行白化滤波。 [0134] Step 905: the data received and / or whitening filter channel.

[0135] 在本实施例中,估计传输带宽的各个区域的干扰和噪声空间协方差矩阵的方法、 根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值的方法、对接收的数据和/ 或信道进行白化滤波的方法以及确定该阈值的方法与实施例1中的记载相同,此处不再重复。 [0135] In the present embodiment, estimation of interference and noise space covariance matrix of each region of the transmission bandwidth, the interference of each region estimation and the method of covariance matrices calculated measure noise spatial association, data received and / or the channel whitening filter and a method of determining the threshold value is the same as the embodiment described in Example 1, will not be repeated here.

[0136] 由上述实施例可知,通过根据估计的IN-SCM矩阵计算反映干扰与噪声比水平的度量值,自适应的对接收的数据和/或信道进行白化滤波,从而能够在不同的干扰场景下都获得良好的干扰抑制效果,保证系统的性能。 [0136] apparent from the above embodiment, the IN-SCM matrix based on the estimated calculation reflected interference noise ratio measure level adaptive to the received data and / or channel whitening filter, thereby scene different interference under obtain good interference suppression effect, to ensure system performance.

[0137] 本发明实施例还提供一种计算机可读程序,其中当在干扰抑制装置或接收机中执行所述程序时,所述程序使得计算机在所述干扰抑制装置或接收机中执行实施例3或实施例4所述的干扰抑制方法。 [0137] The present invention further provides a computer-readable program, wherein the program when executed interference suppressing means or receiver, the program causing a computer to execute the interference suppression means or receiver Example interference Example 3 or 4, wherein the inhibiting embodiment.

[0138] 本发明实施例还提供一种存储有计算机可读程序的存储介质,其中所述计算机可读程序使得计算机在干扰抑制装置或接收机中执行实施例3或实施例4所述的干扰抑制方法。 [0138] Embodiments of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causing a computer to perform interference suppression apparatus of the embodiment or the receiver 4 or interfering Example 3 suppression methods.

[0139] 本发明以上的装置和方法可以由硬件实现,也可以由硬件结合软件实现。 [0139] The above device and method of the present invention may be implemented by hardware, or combination of hardware and software. 本发明涉及这样的计算机可读程序,当该程序被逻辑部件所执行时,能够使该逻辑部件实现上文所述的装置或构成部件,或使该逻辑部件实现上文所述的各种方法或步骤。 The present invention is directed to such computer-readable program, when the program is executed by a logic means, the logic means enables the apparatus described hereinabove or components implemented, or that the logic elements realized the various methods described above or steps. 本发明还涉及用于存储以上程序的存储介质,如硬盘、磁盘、光盘、DVD、flash存储器等。 The present invention further relates to a storage medium for storing the above program, such as a hard disk, optical disk, DVD, flash memory or the like.

[0140] 以上结合具体的实施方式对本发明进行了描述,但本领域技术人员应该清楚,这些描述都是示例性的,并不是对本发明保护范围的限制。 [0140] with reference to specific embodiments of the present invention has been described, it should be apparent to those skilled in the art, these descriptions are exemplary, not limiting the scope of the present invention. 本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和修改,这些变型和修改也在本发明的范围内。 Those skilled in the art can make various variations and modifications of the invention in accordance with the spirit and principles of the invention, such variations and modifications are scope of the invention.

[0141] 关于包括以上实施例的实施方式,还公开下述的附记: [0141] containing the above embodiment example of the embodiment, also disclosed following supplements:

[0142] 附记1、一种干扰抑制装置,所述装置包括: [0142] Appendix 1. An interference suppression device, said apparatus comprising:

[0143] 估计单元,所述估计单元用于估计传输带宽的各个区域的干扰和噪声空间协方差矩阵,其中,所述区域是指在频域上包括至少一个物理资源块,且在时域上包括至少一个子帧的时频范围; [0143] estimating means, the means for estimating interference and noise covariance matrix of each space region estimated transmission bandwidth, wherein said region is intended to include at least one physical resource block in the frequency domain and the time domain in when at least one subframe in the frequency range;

[0144] 第一计算单元,所述第一计算单元用于根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值,其中,所述度量值反映所述传输带宽内的干扰与噪声比的水平; [0144] The first calculation means, said first calculation unit for each region according to the interference noise estimation and spatial covariance matrix calculation metric, wherein the metric reflects the interference and noise ratio of the transmission bandwidth s level;

[0145] 滤波单元,所述滤波单元用于当所述度量值大于预先设定的阈值时,对接收的数据和/或信道进行白化滤波。 [0145] filtering means, said filtering means when said metric value is greater than a preset threshold value, the received data and / or whitening filter channel.

[0146] 附记2、根据附记1所述的装置,其中,所述装置还包括: [0146] Appendix 2, the apparatus according to Supplementary note 1, wherein said apparatus further comprises:

[0147] 第二计算单元,所述第二计算单元用于根据估计的各个区域的干扰和噪声空间协方差矩阵计算进行白化滤波的滤波权值。 [0147] a second computing unit, the second calculating unit for filtering whitening filter weights calculated based on the interference and noise covariance matrix of each space region estimated.

[0148] 附记3、根据附记1所述的装置,其中,所述第一计算单元包括: [0148] Appendix 3, apparatus according to Supplementary note 1, wherein the first calculation unit comprises:

[0149] 第三计算单元,所述第三计算单元用于计算各个区域的干扰和噪声空间协方差矩阵在频域上的平均值; [0149] The third computing means, the third computing means for calculating the average interference and noise covariance matrix of each space region in the frequency domain;

[0150] 第四计算单元,所述第四计算单元用于根据各个区域的干扰和噪声空间协方差矩阵在频域上的平均值计算瞬时度量值; [0150] The fourth computing means, said fourth calculating means for calculating the average value of each region and the interference spatial covariance matrix of noise in the frequency domain instantaneous metric;

[0151] 处理单元,所述处理单元用于对所述瞬时度量值进行时域平滑处理,以获得所述度量值。 [0151] a processing unit, said processing unit for smoothing processing of the instantaneous value of the time domain to obtain the metric.

[0152] 附记4、根据附记1所述的装置,其中,所述装置还包括: [0152] Appendix 4, apparatus according to Supplementary note 1, wherein said apparatus further comprises:

[0153] 阈值确定单元,所述阈值确定单元用于根据传输带宽内所述区域的数量、各个区域内使用的参考信号所占资源元素的数量以及接收天线的数量中的至少一个确定所述预先设定的阈值。 [0153] threshold determining means, means for determining the threshold within the predetermined number of regions of the transmission bandwidth, number of antennas and receiving the reference signal resource elements occupied by the use of respective regions determined according to at least one of set threshold value.

[0154] 附记5、根据附记4所述的装置,其中,所述阈值确定单元利用以下的公式(1)确定所述预先设定的阈值: [0154] Appendix 5, apparatus according to Supplementary Note 4, wherein the threshold determination means (1) determines the predetermined threshold value is set using the following equation:

[0155] [0155]

Figure CN104852748AD00161

[0156] 其中,Nregim表示所述区域的数量,Nks 表示各个区域内使用的参考信号所占资源元素的数量,Nk表示接收天线的数量;^iVregirai ,TV=表示下行链路的物理资源块的数量;;_表示下行链路的物理资源块的最大数量;a(NKSMgim,NK)和b(NRS-regi()n,Nr)表不NRS-regiQn 和Nr 的变里,e(Nr)表不Nr 的变里;LUT(Nregim,NRS-regiQn,Nr)表示基于^regionj ^ES_region和Nk的查找表。 [0156] wherein, Nregim represents the number of regions, Nks occupied by the reference signal represents the number of resource elements used within each region, Nk denotes the number of receive antennas; ^ iVregirai, TV = represents a physical resource block of downlink number ;; _ represents the maximum number of physical resource blocks of the downlink; a (NKSMgim, NK), and b (NRS-regi () n, Nr) table does not change and NRS-regiQn Nr's, e (Nr) table Nr becomes not there; LUT (Nregim, NRS-regiQn, Nr) represents a lookup table based on ^ regionj ^ ES_region and the Nk.

[0157] 附记6、一种接收机,所述接收机包括根据附记1所述的干扰抑制装置。 [0157] Appendix 6, A receiver, said receiver comprising interference suppression device according to claim 1 Appendix.

[0158] 附记7、一种干扰抑制方法,所述方法包括: [0158] Appendix 7. A method of interference suppression, the method comprising:

[0159] 估计传输带宽的各个区域的干扰和噪声空间协方差矩阵,其中,所述区域是指在频域上包括至少一个物理资源块,且在时域上包括至少一个子帧的时频范围; [0159] estimating interference and noise covariance matrix of each space area of ​​transmission bandwidth, wherein said region is intended to include at least one physical resource block in the frequency domain, and includes at least one subframe in time domain frequency range ;

[0160] 根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值,其中,所述度量值反映所述传输带宽内的干扰与噪声比的水平; [0160] The spatial interference and noise covariance matrix calculated measure respective areas estimates, wherein said metric reflecting the level of interference and noise ratio of the transmission bandwidth;

[0161] 当所述度量值大于预先设定的阈值时,对接收的数据和/或信道进行白化滤波。 [0161] When the measurement value is greater than a predetermined threshold value, the received data and / or whitening filter channel.

[0162] 附记8、根据附记7所述的方法,其中,所述方法还包括: [0162] Appendix 8. The method according to Appendix 7, wherein said method further comprises:

[0163] 根据估计的各个区域的干扰和噪声空间协方差矩阵计算进行白化滤波的滤波权值。 [0163] whitening filter for filtering the weight is calculated based on the interference and noise covariance matrix of each space region estimated.

[0164] 附记9、根据附记7所述的方法,其中,所述根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值,包括: [0164] Appendix 9 The method according to Appendix 7, wherein said interference and noise space covariance matrix calculated measure based on the estimated respective areas, comprising:

[0165] 计算各个区域的干扰和噪声空间协方差矩阵在频域上的平均值; [0165] calculating the average interference and noise covariance matrix of each space region in the frequency domain;

[0166] 根据各个区域的干扰和噪声空间协方差矩阵在频域上的平均值计算瞬时度量值; [0166] The metric calculating the instantaneous mean value of each region and the interference spatial covariance matrix of noise in the frequency domain;

[0167] 对所述瞬时度量值进行时域平滑处理,以获得所述度量值。 [0167] the instantaneous value of the time-domain smoothing processing, to obtain the metric.

[0168] 附记10、根据附记7所述的方法,其中,所述方法还包括: [0168] Appendix 10 The method according to Appendix 7, wherein said method further comprises:

[0169] 根据传输带宽内所述区域的数量、各个区域内使用的参考信号所占资源元素的数量以及接收天线的数量中的至少一个确定所述预先设定的阈值。 [0169] The number of the inner region of the transmission bandwidth, the number of resource elements occupied by the reference signal in each region and using the number of receive antennas of the at least one pre-determined threshold value set.

[0170] 附记11、根据附记10所述的方法,其中,利用以下的公式(1)确定所述预先设定的阈值: [0170] Appendix 11, according to Appendix 10, wherein, (1) determine the predetermined threshold value is set using the following equation:

[0171] [0171]

Figure CN104852748AD00171

[0172] 其中,Nregim表示所述区域的数量,Nks 表示各个区域内使用的参考信号所占资源元素的数量,Nk表示接收天线的数量;A^regim <iVg,表示下行链路的物理资源块的数量;:KKA/=-max,A/=-1胃表示下行链路的物理资源块的最大数量;a(NKSMgim,Nk)和b(NRS-regi()n,Nr)表不NRS-regiQn 和Nr 的变里,e(Nr)表不Nr 的变里;LUT(Nregim,NRS-regiQn,Nr)表示基于^regionj ^ES_region和Nk的查找表。 [0172] wherein, Nregim represents the number of regions, Nks occupied by the reference signal represents the number of resource elements used within each region, Nk denotes the number of receive antennas; A ^ regim <iVg, represents the downlink physical resource blocks quantity;: KKA / = - max, a / = - 1 represents the maximum number of physical resource stomach downlink blocks; a (NKSMgim, Nk), and b (NRS-regi () n, Nr) table does not NRS- and variations regiQn Nr's, e (Nr) in the table does not become Nr; LUT (Nregim, NRS-regiQn, Nr) represents ^ regionj ^ ES_region based lookup table and Nk.

Claims (10)

1. 一种干扰抑制装置,所述装置包括: 估计单元,所述估计单元用于估计传输带宽的各个区域的干扰和噪声空间协方差矩阵,其中,所述区域是指在频域上包括至少一个物理资源块,且在时域上包括至少一个子帧的时频范围; 第一计算单元,所述第一计算单元用于根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值,其中,所述度量值反映所述传输带宽内的干扰与噪声比的水平; 滤波单元,所述滤波单元用于当所述度量值大于预先设定的阈值时,对接收的数据和/ 或信道进行白化滤波。 1. An interference suppression device, the apparatus comprising: estimating means, the means for estimating interference and noise covariance matrix of each space region estimated transmission bandwidth, wherein, said means comprising at least a region in the frequency domain a physical resource block, and includes at least one subframe in the time domain frequency range; a first calculation unit calculating a first spatial interference and noise covariance matrix for calculating the estimated metrics unit of each region, wherein said metric reflecting the level of interference and noise ratio within the transmission bandwidth; filter unit, the filter unit is configured to, when the measurement value is greater than a predetermined threshold value, the received data and / or channel whitening filtering.
2. 根据权利要求1所述的装置,其中,所述装置还包括: 第二计算单元,所述第二计算单元用于根据估计的各个区域的干扰和噪声空间协方差矩阵计算进行白化滤波的滤波权值。 2. The apparatus according to claim 1, wherein said apparatus further comprises: a second calculating unit, the second calculating means for calculating a whitening filter for each region based on the interference estimate and the noise spatial covariance matrix filter weights.
3. 根据权利要求1所述的装置,其中,所述第一计算单元包括: 第三计算单元,所述第三计算单元用于计算各个区域的干扰和噪声空间协方差矩阵在频域上的平均值; 第四计算单元,所述第四计算单元用于根据各个区域的干扰和噪声空间协方差矩阵在频域上的平均值计算瞬时度量值; 处理单元,所述处理单元用于对所述瞬时度量值进行时域平滑处理,以获得所述度量值。 3. The apparatus according to claim 1, wherein the first calculation unit comprises: a third calculating unit, a third calculating unit for calculating interference and noise space covariance matrix of each region in the frequency domain the average; a fourth calculating unit, a fourth calculating means for calculating the average value of the instantaneous measure of the interference regions respective spatial covariance matrix and the noise in the frequency domain; the processing unit, the processing unit is configured to smoothing processing for said instantaneous metric, to obtain the metric.
4. 根据权利要求1所述的装置,其中,所述装置还包括: 阈值确定单元,所述阈值确定单元用于根据传输带宽内所述区域的数量、各个区域内使用的参考信号所占资源元素的数量以及接收天线的数量中的至少一个确定所述预先设定的阈值。 The number of the unit for the transmission bandwidth region, using the reference signal in each resource occupied area threshold value determination unit, the threshold value determination: 4. The apparatus according to claim 1, wherein said apparatus further comprises the number and the receiving antenna elements of said at least one pre-determined threshold value set.
5. 根据权利要求4所述的装置,其中,所述阈值确定单元利用以下的公式(1)确定所述预先设定的阈值: 5. The apparatus as claimed in claim 4, wherein the threshold determination unit using the following equation (1) determines the predetermined threshold value is set:
Figure CN104852748AC00021
其中,队_"表示所述区域的数量,Nks 表示各个区域内使用的参考信号所占资源元素的数量,Nk表示接收天线的数量;Wregim < , A/=表示下行链路的物理资源块的数量;_,AC-max表示下行链路的物理资源块的最大数量;a(NKSMgim,NK)和b (NRS-regi()n,Nr)表不NRS-regiQn 和Nr 的变里,ε (Ne)表不Nr 的变里;LUT (Nregim, NRS-regiQn,Nr)表示基于^region? ^ES_region 和Nk的查找表。 Wherein, team _ "indicates the number of regions, Nks represents the number of resource elements occupied by the reference signal used in the respective regions, represents the number Nk of receive antennas; Wregim <, A / = indicates physical resource block of downlink number; _, AC-max indicates the maximum number of physical resource blocks of the downlink; a (NKSMgim, NK), and b (NRS-regi () n, Nr) table does not change and NRS-regiQn Nr's, ε ( Ne table does not become Nr) in; LUT (Nregim, NRS-regiQn, Nr) represents the basis ^ region ^ ES_region and Nk lookup table?.
6. -种接收机,所述接收机包括根据权利要求1所述的干扰抑制装置。 6. - kind of a receiver including the interference suppression device according to claim 1.
7. -种干扰抑制方法,所述方法包括: 估计传输带宽的各个区域的干扰和噪声空间协方差矩阵,其中,所述区域是指在频域上包括至少一个物理资源块,且在时域上包括至少一个子帧的时频范围; 根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值,其中,所述度量值反映所述传输带宽内的干扰与噪声比的水平; 当所述度量值大于预先设定的阈值时,对接收的数据和/或信道进行白化滤波。 7. - kind of interference suppression, the method comprising: estimating interference and noise covariance matrix of each space area of ​​transmission bandwidth, wherein said region is intended to include at least one physical resource block in the frequency domain and the time domain the sub-frame including at least one time-frequency range; each region based on the interference estimate and a noise covariance matrix calculation spatial metric, wherein the level of interference and noise ratio within the transmission bandwidth of said metric reflecting; when the when said metric value is greater than a predetermined threshold, the received data and / or whitening filter channel.
8. 根据权利要求7所述的方法,其中,所述方法还包括: 根据估计的各个区域的干扰和噪声空间协方差矩阵计算进行白化滤波的滤波权值。 8. The method according to claim 7, wherein said method further comprises: filtering the whitening filter weights based on the interference estimates of each region and calculating a noise covariance matrix RA space.
9. 根据权利要求7所述的方法,其中,所述根据估计的各个区域的干扰和噪声空间协方差矩阵计算度量值,包括: 计算各个区域的干扰和噪声空间协方差矩阵在频域上的平均值; 根据各个区域的干扰和噪声空间协方差矩阵在频域上的平均值计算瞬时度量值; 对所述瞬时度量值进行时域平滑处理,以获得所述度量值。 9. The method according to claim 7, wherein the respective regions based on the interference estimate and the noise spatial covariance matrix calculated measure, comprising: calculating interference and noise space covariance matrix of each region in the frequency domain average; calculated according to the average value of the interference regions respective spatial covariance matrix and the noise in the frequency domain instantaneous metric; smoothing processing for the instantaneous metric, the metric to obtain.
10. 根据权利要求7所述的方法,其中,所述方法还包括: 根据传输带宽内所述区域的数量、各个区域内使用的参考信号所占资源元素的数量以及接收天线的数量中的至少一个确定所述预先设定的阈值。 10. The method according to claim 7, wherein said method further comprises: according to the number within the transmission bandwidth of the region, the number of receive antennas and a reference signal resource elements occupied in each region using at least determining a set of the predetermined threshold value.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1813414A (en) * 2003-06-27 2006-08-02 诺基亚有限公司 Method and apparatus for suppressing co-channel interference in a receiver
US20080194221A1 (en) * 2007-02-09 2008-08-14 Matsushita Electric Industrial Co., Ltd. Radio receiving apparatus
US20080227397A1 (en) * 2007-03-13 2008-09-18 Nec Laboratories America, Inc. Group LMMSE Demodulation Using Noise and Interference Covariance Matrix for Reception on a Cellular Downlink
CN102347784A (en) * 2010-08-03 2012-02-08 鼎桥通信技术有限公司 Joint detection method and joint detection receiver
CN102377698A (en) * 2010-08-11 2012-03-14 华为技术有限公司 Signal to interference and noise ratio measuring method and apparatus thereof
CN102480444A (en) * 2010-11-23 2012-05-30 中兴通讯股份有限公司 Method and corresponding system for broadband co-frequency interference noise estimation and interference suppression
CN102594737A (en) * 2011-01-05 2012-07-18 中兴通讯股份有限公司 Adjacent region interference detection method and system
CN102638423A (en) * 2011-02-11 2012-08-15 中兴通讯股份有限公司 Interference and noise elimination method and device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1813414A (en) * 2003-06-27 2006-08-02 诺基亚有限公司 Method and apparatus for suppressing co-channel interference in a receiver
US20080194221A1 (en) * 2007-02-09 2008-08-14 Matsushita Electric Industrial Co., Ltd. Radio receiving apparatus
US20080227397A1 (en) * 2007-03-13 2008-09-18 Nec Laboratories America, Inc. Group LMMSE Demodulation Using Noise and Interference Covariance Matrix for Reception on a Cellular Downlink
CN102347784A (en) * 2010-08-03 2012-02-08 鼎桥通信技术有限公司 Joint detection method and joint detection receiver
CN102377698A (en) * 2010-08-11 2012-03-14 华为技术有限公司 Signal to interference and noise ratio measuring method and apparatus thereof
CN102480444A (en) * 2010-11-23 2012-05-30 中兴通讯股份有限公司 Method and corresponding system for broadband co-frequency interference noise estimation and interference suppression
CN102594737A (en) * 2011-01-05 2012-07-18 中兴通讯股份有限公司 Adjacent region interference detection method and system
CN102638423A (en) * 2011-02-11 2012-08-15 中兴通讯股份有限公司 Interference and noise elimination method and device

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