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    • 2. 发明申请
    • METHOD FOR TRANSMITTING OPTIMALLY DIVERSIFIED INFORMATION IN A MIMO TELECOMMUNICATION SYSTEM
    • 用于在MIMO电信系统中发送最佳分集信息的方法
    • US20100220802A1
    • 2010-09-02
    • US12755923
    • 2010-04-07
    • Damien CASTELAINLoic Brunel
    • Damien CASTELAINLoic Brunel
    • H04B7/02H04L27/00
    • H04B7/0678
    • A method for transmitting data in a telecommunication system including at least one transmitter comprising at least two transmitting antennas and at least one receiver comprising at least one receiving antenna, the method including: transforming a plurality of bits of the data to be transmitted into a plurality of symbols by modulating the plurality of bits of the data at the transmitter; generating a first vector formed by the plurality of symbols at the transmitter; preparing a modified matrix by modifying an original matrix based on the number of rows of the first vector, the original matrix being predefined at the transmitter; generating a second vector by multiplying the first vector with the modified matrix at the transmitter; and transmitting symbols forming the second vector over communication channels established between the at least two transmitting antennas of the transmitter and the at least one receiving antenna of the receiver.
    • 一种用于在电信系统中传输数据的方法,包括至少一个包括至少两个发射天线的发射机和至少一个包括至少一个接收天线的接收机,所述方法包括:将待传输的数据的多个比特变换成多个 通过在发射机处调制数据的多个位; 在所述发射机处产生由所述多个符号形成的第一矢量; 通过基于第一矢量的行数修改原始矩阵来准备修改的矩阵,原始矩阵在发射机处被预定义; 通过在发射机处将第一矢量与修改的矩阵相乘来产生第二矢量; 以及通过建立在所述发射机的所述至少两个发射天线与所述接收机的所述至少一个接收天线之间的通信信道上发送形成所述第二矢量的符号。
    • 3. 发明授权
    • Method for transmitting optimally diversified information in a MIMO telecommunication system
    • 用于在MIMO电信系统中发送最佳多样化信息的方法
    • US07756210B2
    • 2010-07-13
    • US11091415
    • 2005-03-29
    • Damien CastelainLoic Brunel
    • Damien CastelainLoic Brunel
    • H04L1/02
    • H04B7/0678
    • A method for transmitting data in a telecommunication system including at least one transmitter including at least two transmitting antennas and at least one receiver including at least one receiving antenna. The method includes: transforming a plurality of bits of the data to be transmitted into a plurality of symbols by modulating the plurality of bits of the data at the transmitter; generating a first vector formed by the plurality of symbols at the transmitter; preparing a modified matrix by modifying an original matrix based on a number of rows of the first vector, the original matrix being predefined at the transmitter; generating a second vector by multiplying the first vector with the modified matrix at the transmitter; and transmitting symbols forming the second vector over communication channels established between the at least two transmitting antennas of the transmitter and the at least one receiving antenna of the receiver.
    • 一种在电信系统中发送数据的方法,包括至少一个包括至少两个发射天线的发射机和包括至少一个接收天线的至少一个接收机。 该方法包括:通过在发射机处调制数据的多个比特来将要发送的数据的多个比特变换成多个符号; 在所述发射机处产生由所述多个符号形成的第一矢量; 通过基于第一向量的行数来修改原始矩阵来准备修改的矩阵,原始矩阵在发射机处是预定义的; 通过在发射机处将第一矢量与修改的矩阵相乘来产生第二矢量; 以及通过建立在所述发射机的所述至少两个发射天线与所述接收机的所述至少一个接收天线之间的通信信道上发送形成所述第二矢量的符号。
    • 6. 发明申请
    • Method for transmitting optimally diversified information in a MIMO telecommunication system
    • 用于在MIMO电信系统中发送最佳多样化信息的方法
    • US20050226313A1
    • 2005-10-13
    • US11091415
    • 2005-03-29
    • Damien CastelainLoic Brunel
    • Damien CastelainLoic Brunel
    • H04J99/00H04B7/02H04B7/04H04B7/06H04L1/06H04L27/34H04B1/707
    • H04B7/0678
    • The present invention relates to a method for transmitting data between a transmitter TR and a receiver REC via communication channels CHNL. The method according to the invention further includes a symbol spreading step in the course of which a tunable integer number K of successive symbols Z1 . . . ZK are to be spread over several time chips before being transmitted, said tunable number K being adjusted with respect to physical properties of the communication channels CHNL. The data transmitted at any given moment will thus not be representative of a single symbol Zi, as is the case in known MIMO systems, but will represent a mixture between K successive symbols, which introduces data diversity with respect to time as perceived at the receiver end, and enables a tuning of the communication throughput between the transmitter TR and the receiver REC.
    • 本发明涉及通过通信信道CHNL在发射机TR和接收机REC之间传输数据的方法。 根据本发明的方法还包括符号扩展步骤,其中连续符号Z1的可调整数K。 。 。 ZK在传输之前将被分散在几个时间片上,所述可调谐数K相对于通信信道CHNL的物理特性被调整。 因此,在任何给定时刻发送的数据将不像现有的MIMO系统那样代表单个符号Z i,而是表示在K个连续符号之间的混合,该连续符号相对于接收机感知到的时间而引入数据分集 并且能够调整发射机TR和接收机REC之间的通信吞吐量。
    • 7. 发明授权
    • Multi-carrier symbol synchronization
    • 多载波符号同步
    • US06459744B1
    • 2002-10-01
    • US09101881
    • 1998-11-03
    • Jean-Francois HelardPierre CombellesDamien Castelain
    • Jean-Francois HelardPierre CombellesDamien Castelain
    • H04L700
    • H04L5/0048H04L27/2605H04L27/2613H04L27/2662H04L27/2665H04L27/2679
    • A method for the time synchronization of a multi-carrier signal receiver consisting of a sequence of symbols each formed by a plurality of carrier frequencies. Each carrier frequency is modulated by a modulation coefficient. The position of some of said carrier frequencies in the time-frequency space is known to the receiver, and said frequencies are reference carrier frequencies. Each reference carrier frequency bears a reference coefficient with a value that is known to the receiver. The method includes a fine synchronization step, wherein the signal transmission channel impulse response is estimated on the basis of reference coefficients belonging to at least two received symbols. The beginning of the useful portion of each of the symbols is determined, and/or a receiver clock is controlled by analyzing the estimate of said impulse response.
    • 一种用于由多个载波频率形成的符号序列组成的多载波信号接收机的时间同步的方法。 每个载波频率由调制系数调制。 时间 - 频率空间中的一些所述载波频率的位置对于接收机是已知的,并且所述频率是参考载波频率。 每个参考载波频率具有接收机已知的值的参考系数。 该方法包括精细同步步骤,其中基于属于至少两个接收符号的参考系数来估计信号传输信道脉冲响应。 确定每个符号的有用部分的开始,和/或通过分析所述脉冲响应的估计来控制接收机时钟。
    • 10. 发明授权
    • Method and a device for determining a shifting parameter to be used by a telecommunication device for transferring symbols
    • 用于确定由电信设备用于传送符号的移位参数的方法和装置
    • US08913569B2
    • 2014-12-16
    • US13255698
    • 2010-03-12
    • Damien CastelainCristina CiochinaLoic BrunelDavid Mottier
    • Damien CastelainCristina CiochinaLoic BrunelDavid Mottier
    • H04W72/00H04L5/00H04L1/06
    • H04L5/0023H04L1/0625H04L1/0668
    • A method for determining a shifting parameter P to be used by a telecommunication device for mapping symbols on sub-carriers, the telecommunication device including at least two transmit antennas, the symbols being transferred through each antenna of the telecommunication device on at least an even number K, strictly greater than two, of sub-carriers allocated to the telecommunication device. The telecommunication device transfers on a first antenna on each sub-carrier ‘k’, a signal representing a symbol ‘Xk’ in the frequency domain. The telecommunication device transfers on a second antenna on each sub-carrier ‘k’, a signal representing a symbol ‘X′k’ derived from the signal transferred on the first transmit antenna, for each frequency k, by the formula X′KsecondAnt=ε(−1)k+1X*(p-1-k)mod K. Sub-carriers grouped in at least two clusters are allocated to the telecommunication device, and the shifting parameter p is even and determined according to clusters of sub-carriers allocated to the telecommunication device.
    • 一种用于确定由电信设备用于在子载波上映射符号的移位参数P的方法,所述电信设备包括至少两个发射天线,所述符号通过至少偶数的电信设备的每个天线传送 K,严格大于2,分配给电信设备的子载波。 电信设备在每个子载波'k'上的第一天线上传送表示频域中的符号“Xk”的信号。 电信设备在每个子载波'k'上的第二天线上传送表示从对于每个频率k在第一发射天线上传送的信号导出的符号“X'k”的信号,通过公式X'KsecondAnt = ( - 1)k + 1X *(p-1-k)mod K.分组在至少两个簇中的子载波被分配给电信设备,并且移位参数p是均匀的并且根据子集合确定 分配给电信设备的载波。