Method for communicating in a MIMO context
    2.
    发明授权
    Method for communicating in a MIMO context 有权
    用于在MIMO上下文中通信的方法

    公开(公告)号:US09008008B2

    公开(公告)日:2015-04-14

    申请号:US12597013

    申请日:2008-04-28

    摘要: The present invention relates to a method for communicating from a primary station with an array of transmit antennas to a secondary station on a downlink channel, said method comprising steps of, at the primary station, (a) configuring the downlink channel, step (a) being subdivided into steps of: 5 (a2) computing a precoding to be applied during a corresponding transmission from the primary station to the secondary station for each of an array of transmit antennas; (a3) applying a reversible transform to the precoding, thus ascertaining a set of precoding coefficients substantially representative of the precoding in a transform 10 domain; (a4) computing a set of parameters comprising at least one parameter, said parameter being substantially representative of the coefficients obtained at step (a3); (a5) signaling the set of parameters to the secondary station; 15 (b) transmitting data to the secondary station substantially according to the precoding computed at step (a2).

    摘要翻译: 本发明涉及一种用于从主站与发射天线阵列在下行链路信道上向次站进行通信的方法,所述方法包括以下步骤:在主站处,(a)配置下行链路信道,步骤(a )被细分为以下步骤:5(a2)计算在发射天线阵列中的每个发射天线从主站到次站的相应传输期间应用的预编码; (a3)将可逆变换应用于预编码,从而确定基本上代表变换10域中的预编码的一组预编码系数; (a4)计算包括至少一个参数的一组参数,所述参数基本上代表在步骤(a3)获得的系数; (a5)向该次要站发信号通知一组参数; 15(b)基本上按照步骤(a2)中计算的预编码将数据发送到次站。

    Remotely weighted SDMA transmission
    3.
    发明授权
    Remotely weighted SDMA transmission 失效
    远程加权SDMA传输

    公开(公告)号:US08599739B2

    公开(公告)日:2013-12-03

    申请号:US13081792

    申请日:2011-04-07

    IPC分类号: H04J1/10

    摘要: The present disclosure concerns the harnessing of the effect of a relay to enhance the ability to avoid the effect of interference at mobile stations. This is achieved either by overlaying beamforming for an indirectly reached mobile station so that a relay passes on this beamforming to the mobile station concerned, and retaining orthogonality therewith, or by harnessing a base station and a relay station together so that their combined effect is to provide spatial multiplexing to two or more mobile stations.

    摘要翻译: 本公开涉及利用中继的效果来增强避免在移动台处的干扰的影响的能力。 这可以通过对间接到达的移动站叠加波束形成来实现,使得中继器将该波束形成传递到相关移动站,并保持与其相关的正交性,或者通过将基站和中继站一起利用,使得它们的组合效果为 向两个或多个移动台提供空间复用。

    Coordinated change of transmission parameters for data and control information
    4.
    发明授权
    Coordinated change of transmission parameters for data and control information 有权
    数据和控制信息传输参数的协调变更

    公开(公告)号:US08526991B2

    公开(公告)日:2013-09-03

    申请号:US12739169

    申请日:2008-10-21

    IPC分类号: H04W52/10

    摘要: A method for transmission of control information from a primary station to at least one secondary station, includes transmitting with a first set of control information parameters control information corresponding to data transmission with a first set of data parameters, and transmitting with a second set of control information parameters control information corresponding to data transmission with a second set of data parameters. At least one control information parameter has a difference in value between the two sets of control information parameters, where the difference in value has a dependency on the difference between the value of a data parameter in the first set of data parameters and the value of the data parameter in the second set of data parameters. The data parameter is a different parameter from the at least one control information parameter.

    摘要翻译: 一种用于将控制信息从主站传输到至少一个次站的方法,包括利用第一组数据参数发送具有与数据传输相对应的控制信息参数控制信息的第一组控制信息,并且以第二组控制 信息参数控制信息对应于数据传输与第二组数据参数。 至少一个控制信息参数在两组控制信息参数之间具有差值,其中值的差异依赖于第一组数据参数中的数据参数的值与 数据参数在第二组数据参数中。 数据参数是与至少一个控制信息参数不同的参数。

    Dual indicator scheme for channel state information feedback
    6.
    发明授权
    Dual indicator scheme for channel state information feedback 有权
    信道状态信息反馈双指标方案

    公开(公告)号:US08718157B2

    公开(公告)日:2014-05-06

    申请号:US13081832

    申请日:2011-04-07

    IPC分类号: H04K1/10

    摘要: Codebook based communication of precoding data between two stations involves determining a ‘best fit’ precoding at a receiving station, on the basis of channel state measurements taken therein. The best fit precoding is compared with pre-agreed entries in a codebook, and an indicator is sent back to the terminal emitting the analysed signal. The determination is separated into two elements, one being sufficient for use with SU-MIMO, and another being provided, with a second codebook indicator, if MU-MIMO is to be employed. This second codebook indicator points to a codebook of eigenvector representations for the multi-user space in which the channel is persisting.

    摘要翻译: 基于在两个站之间的基于码本的预编码数据的通信包括基于其中采用的信道状态测量来确定接收站处的“最佳拟合”预编码。 将最佳拟合预编码与码本中的预先约定条目进行比较,并将指示符发送回发送分析信号的终端。 确定被分成两个元素,一个足以与SU-MIMO一起使用,另一个被提供有第二码本指示符,如果要使用MU-MIMO。 该第二码本指示符指向其中信道持续的多用户空间的特征向量表示的码本。

    WIRELESS COMMUNICATION APPARATUS
    7.
    发明申请

    公开(公告)号:US20130064273A1

    公开(公告)日:2013-03-14

    申请号:US13610968

    申请日:2012-09-12

    申请人: Filippo TOSATO

    发明人: Filippo TOSATO

    IPC分类号: H04L27/26

    CPC分类号: H04L25/03898 H03M7/3082

    摘要: Processing data presented in the form of a vector representation involves representing direction of the vector with incremental accuracy by using a set of vector codebooks of decreasing dimensions per accuracy increment.

    Transmission over a multiple input multiple output broadcast channel (MIMO-BC)
    8.
    发明授权
    Transmission over a multiple input multiple output broadcast channel (MIMO-BC) 有权
    通过多输入多输出广播信道(MIMO-BC)

    公开(公告)号:US08116702B2

    公开(公告)日:2012-02-14

    申请号:US11994665

    申请日:2006-07-06

    申请人: Filippo Tosato

    发明人: Filippo Tosato

    IPC分类号: H03C1/62 H04B1/04

    摘要: A Multiple Input Multiple Output (MIMO) communication system 1 has a transmitter for transmitting signals over a MIMO Broadcast Channel (MIMO-BC) 6. Data for communication to respective receivers 41, 4K-1, 4K is encoded by encoding stages 101, . . . , 10K-1, 10K in a selected order by selecting codewords c1, . . . cK-1, cK from codebooks C1, . . . CK-1, CK of a nested lattice code. Dither adders 111, . . . , 11K-1, 11K are arranged to add a respective dither d1 . . . , dK-1, dk to the selected codewords c1, . . . cK-1, cK. Quantising stages 121, . . . , 12K-1, 12K each perform respective quantising operations mod ΛS,1, . . . , mod ΛS, K-1, mod ΛS, K using the shaping lattice ΛS of the nested lattice code. Quantised signals u1, . . . , uK-1, uK of data encoded earlier in the selected order are output to feedbackward filter stages 141, . . . , 14K-1 for filtering the codewords c1, . . . cK-1, cK of data encoded later in the selected order before they are quantised by the quantising stages 121, . . . , 12K-1 using a feedbackward filter Fb. At the receivers 41, 4K-1, 4K feedforward filter stages 151, . . . , 15K-1, 15K filter received signals y1, . . . , yK-1, yK by applying a feedforward filter Ff. A combination of the feedbackward and feedforward filters Fb, Ff is substantially equivalent to a single filter for extracting the signals representing the data intended to be communicated to the receivers 41, 4K-1, 4K with a minimum mean squared error, but the feedforward filter Ff can be applied by each of the receivers 41, . . . , 4K-1, 4K without knowledge of signals y1, . . . , yK-1, yK received by the other receivers 41, . . . , 4K-1, 4K.

    摘要翻译: 多输入多输出(MIMO)通信系统1具有用于通过MIMO广播信道(MIMO-BC)6发送信号的发射机。用于到相应接收机41,4K-1,4K的通信的数据由编码级101编码。 。 。 ,10K-1,10K以选择的顺序选择码字c1,。 。 。 cK-1,cK来自码本C1,。 。 。 CK-1,CK的嵌套格子码。 抖动加法器111,。 。 。 ,11K-1,11K被布置成添加相应的抖动d1。 。 。 ,dK-1,dk到所选择的码字c1,。 。 。 cK-1,cK。 量化阶段121, 。 。 ,12K-1,12K各自执行相应的量化操作modΛS,1,...。 。 。 ,使用嵌套格子码的整形网格ΛS,modΛS,K-1,modΛS,K。 量化信号u1,。 。 。 ,以所选顺序较早编码的数据的uK-1,uK被输出到反馈向滤波器级141。 。 。 ,14K-1用于对码字c1进行滤波。 。 。 在被量化阶段121量化之前,以所选顺序编码的数据的cK-1,cK-1,cK-1,cK。 。 。 ,12K-1使用反馈向滤波器Fb。 在接收器41,4K-1,4K前馈滤波器级151, 。 。 ,15K-1,15K滤波器接收信号y1,。 。 。 ,yK-1,yK,通过应用前馈滤波器Ff。 反馈和前馈滤波器Fb,Ff的组合基本上等同于单个滤波器,用于以最小均方误差提取表示要传送到接收机41,4K-1,4K的数据的信号,但是前馈滤波器 Ff可以由每个接收器41施加。 。 。 ,4K-1,4K,不知道信号y1,。 。 。 ,yK-1,yK由其他接收器41接收。 。 。 ,4K-1,4K。

    REMOTELY WEIGHTED SDMA TRANSMISSION
    9.
    发明申请
    REMOTELY WEIGHTED SDMA TRANSMISSION 失效
    远程加权SDMA传输

    公开(公告)号:US20110249613A1

    公开(公告)日:2011-10-13

    申请号:US13081792

    申请日:2011-04-07

    IPC分类号: H04B7/14

    摘要: The present disclosure concerns the harnessing of the effect of a relay to enhance the ability to avoid the effect of interference at mobile stations. This is achieved either by overlaying beamforming for an indirectly reached mobile station so that a relay passes on this beamforming to the mobile station concerned, and retaining orthogonality therewith, or by harnessing a base station and a relay station together so that their combined effect is to provide spatial multiplexing to two or more mobile stations.

    摘要翻译: 本公开涉及利用中继的效果来增强避免在移动台处的干扰的影响的能力。 这可以通过对间接到达的移动站叠加波束形成来实现,使得中继器将该波束形成传递到相关移动站,并保持与其相关的正交性,或者通过将基站和中继站一起利用,使得它们的组合效果为 向两个或多个移动台提供空间复用。

    WIRELESS COMMUNICATION APPARATUS AND METHOD
    10.
    发明申请
    WIRELESS COMMUNICATION APPARATUS AND METHOD 有权
    无线通信装置和方法

    公开(公告)号:US20110111747A1

    公开(公告)日:2011-05-12

    申请号:US12940329

    申请日:2010-11-05

    申请人: Filippo TOSATO

    发明人: Filippo TOSATO

    IPC分类号: H04W40/00

    摘要: A data compression process is described, for compressing channel state information to be fed back to a transmitter. The process involves arranging the data as a matrix comprising a number of orthonormal vectors derived from a channel matrix, determining a singular value decomposition of a subset of the orthonormal matrix to generate matrices respectively of left and right singular vectors, the number of vectors in the subset being equal to the order of the vectors, and right multiplying the remainder orthonormal vectors not included in the singular value decomposition by a matrix product of the matrix of right singular vectors and the matrix of left singular vectors to generate a matrix of compressed data.

    摘要翻译: 描述了用于压缩要反馈到发射机的信道状态信息的数据压缩过程。 该过程涉及将数据布置为包括从信道矩阵导出的多个正交向量的矩阵,确定正交矩阵的子集的奇异值分解以分别生成左右奇异向量的矩阵, 子集等于向量的顺序,并且将不包括在奇异值分解中的余数正交向量右乘右侧奇异向量矩阵和左奇异向量矩阵的矩阵乘积,以生成压缩数据矩阵。