Multiple antenna communication system
    51.
    发明申请
    Multiple antenna communication system 审中-公开
    多天线通信系统

    公开(公告)号:US20060209975A1

    公开(公告)日:2006-09-21

    申请号:US11304096

    申请日:2005-12-15

    IPC分类号: H04K1/10 H04L1/02

    CPC分类号: H04L1/0687 H04L27/2601

    摘要: A multiple antenna communication system is provided. In the multiple antenna communication system, a receiver selects a transmit eigenvector corresponding to a singular value resulting from the Singular Value Decomposition (SVD) of a channel matrix between Tx antennas and Rx antennas and feeds back the transmit eigenvector to a transmitter to assist the transmitter in selecting transmission data. Thus, the efficiency of data transmission is increased.

    摘要翻译: 提供多天线通信系统。 在多天线通信系统中,接收机选择对应于由Tx天线和Rx天线之间的信道矩阵的奇异值分解(SVD)产生的奇异值的发射特征向量,并将发射特征向量反馈到发射机,以帮助发射机 在选择传输数据时。 因此,数据传输的效率增加。

    Apparatus and method for space-frequency block coding/decoding in a communication system
    57.
    发明申请
    Apparatus and method for space-frequency block coding/decoding in a communication system 有权
    在通信系统中用于空间频率块编码/解码的装置和方法

    公开(公告)号:US20050281350A1

    公开(公告)日:2005-12-22

    申请号:US11156689

    申请日:2005-06-20

    CPC分类号: H04B7/068

    摘要: An apparatus and method for SFBC coding and decoding in a communication system using a plurality of (N1) Tx antennas are provided. In a transmitter using Nt transmit antennas, a pre-coder pre-codes an input symbol sequence using a pre-coding matrix. The pre-coding matrix is produced by puncturing a unitary matrix in a predetermined method. An encoder generates a plurality of vectors by grouping the symbols of the pre-coded symbol sequence by twos, space-frequency maps each of the vectors by encoding each of the vectors in an Alamouti coding scheme, and provides each of the space-frequency mapped symbols to a predetermined OFDM modulator.

    摘要翻译: 提供了一种使用多个(N 1 1)个Tx天线的通信系统中的SFBC编码和解码的装置和方法。 在使用N T发射天线的发射机中,预编码器使用预编码矩阵对输入符号序列进行预编码。 预编码矩阵是通过以预定方法对单一矩阵进行打孔而产生的。 编码器通过对预编码符号序列的符号进行二进制分组来生成多个向量,通过以Alamouti编码方案对每个向量进行编码,对每个向量进行空间频率映射,并且提供每个空间频率映射 符号到预定的OFDM调制器。

    Methods and communication systems having adaptive mode selection
    59.
    发明授权
    Methods and communication systems having adaptive mode selection 有权
    具有自适应模式选择的方法和通信系统

    公开(公告)号:US08798120B2

    公开(公告)日:2014-08-05

    申请号:US12727049

    申请日:2010-03-18

    IPC分类号: H04B1/38

    摘要: Examples are generally described that include methods for selecting a transmit mode in a communications system. An example method may include calculating a first transmission rate for data in a multiple-input multiple-output mode of the communications system and calculating a second transmission rate for the data in a single-input multiple-output mode of the communications system. A mode may be selected from the group consisting of the multiple-input multiple-output mode and the single-input multiple-output mode based, at least in part, on an energy consumption of the first and second transmission rates. Data may be transmitted from a transceiver in the communications system using the selected mode.

    摘要翻译: 通常描述包括在通信系统中选择发送模式的方法的示例。 示例性方法可以包括为通信系统的多输入多输出模式中的数据计算第一传输速率,并计算通信系统的单输入多输出模式中的数据的第二传输速率。 至少部分地基于第一和第二传输速率的能量消耗,从多输入多输出模式和单输入多输出模式中选择模式。 可以使用所选择的模式从通信系统中的收发器发送数据。

    Apparatus and method for extending number of antennas in a wireless communication system using multiple antennas
    60.
    发明授权
    Apparatus and method for extending number of antennas in a wireless communication system using multiple antennas 有权
    在使用多个天线的无线通信系统中扩展天线数量的装置和方法

    公开(公告)号:US07764744B2

    公开(公告)日:2010-07-27

    申请号:US11523278

    申请日:2006-09-18

    摘要: An apparatus and method for simultaneously providing service to users each having a different number of antennas in a multiple-antenna wireless communication system are provided. The communication method discloses a BS in a wireless communication system that services a first multiple antenna mode using X transmit antennas and a second multiple antenna mode using Y transmit antennas such that (Y>X), the BS determines an MS to be serviced in the second multiple antenna mode and receives a sounding signal from the MS. The BS estimates an uplink channel using the received sounding signal and acquires downlink channel values using estimated uplink channel values. Then the BS services the MS in the second multiple antenna mode using the downlink channel values.

    摘要翻译: 提供了一种用于在多天线无线通信系统中同时向具有不同天数的用户提供服务的装置和方法。 该通信方法公开了使用X个发射天线来服务第一多天线模式的无线通信系统中的BS,以及使用Y个发射天线的第二多天线模式,使得(Y> X),BS确定要在 第二多天线模式并从MS接收探测信号。 BS使用接收到的探测信号估计上行链路信道,并且使用估计的上行链路信道值来获取下行链路信道值。 然后BS使用下行链路信道值在第二多天线模式中服务于MS。