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    • 1. 发明授权
    • Spatial separation and multi-polarization of antennae in a wireless network
    • 无线网络中天线的空间分离和天线的多极化
    • US06963619B1
    • 2005-11-08
    • US09621119
    • 2000-07-21
    • David J. GesbertPeroor K. SebastianVinko ErcegVictor ShtromSanjay KasturiaArogyaswami J. Paulraj
    • David J. GesbertPeroor K. SebastianVinko ErcegVictor ShtromSanjay KasturiaArogyaswami J. Paulraj
    • H04B7/02H04B7/10H04L1/02
    • H04B7/10
    • The present invention includes a wireless communication system. The wireless communication system includes a plurality of transceiver antennae. Each transceiver is spatially separate from at least one other transceiver antenna. Each transceiver antenna includes a transceiver antenna polarization. At least one transceiver antenna has a polarization that is different than at least one other transceiver antenna. Each transceiver antenna transmits a corresponding data stream. The wireless communication system further includes a plurality of receiver antennae. The receiver antennae receive at least one data stream. The transceiver antenna polarization of each transceiver antenna is pre-set to optimize separability of the received data streams. A transmission channel between the transceiver antennae and the receiver antennae can be estimated with a channel matrix. The pre-set transceiver antenna polarization of each transceiver antenna can be determined by minimizing a singular value spread of the channel matrix. A pre-set receiver antenna polarization of each receiver antenna can also be determined by minimizing a singular value spread of the channel matrix.
    • 本发明包括无线通信系统。 无线通信系统包括多个收发器天线。 每个收发器在空间上与至少一个其他收发器天线分离。 每个收发天线包括收发天线极化。 至少一个收发天线具有与至少一个其它收发器天线不同的极化。 每个收发天线发送相应的数据流。 无线通信系统还包括多个接收机天线。 接收器天线接收至少一个数据流。 每个收发天线的收发天线极化被预先设定,以优化接收数据流的可分离性。 可以用信道矩阵来估计收发天线和接收机天线之间的传输信道。 可以通过最小化信道矩阵的奇异值扩展来确定每个收发天线的预设收发天线极化。 也可以通过最小化信道矩阵的奇异值扩展来确定每个接收机天线的预设接收机天线极化。
    • 4. 再颁专利
    • Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter
    • 使用多个天线的方法和无线系统以及最大化通信参数的自适应控制
    • USRE44959E1
    • 2014-06-24
    • US10702053
    • 2003-11-05
    • Arogyaswami J. PaulrajPeroor K. SebastianDavid J. GesbertJose Tellado
    • Arogyaswami J. PaulrajPeroor K. SebastianDavid J. GesbertJose Tellado
    • H04B7/02H04L1/02
    • H04B7/0891H01Q1/246H01Q3/2605H04B7/0669H04B7/0673H04B7/0697H04B7/0857H04L1/0003H04L1/0009H04L1/0026H04L1/06H04L1/0606H04L1/0618
    • A method of maximizing a communication parameter, such as data capacity, signal quality or throughput of a channel between a transmit unit with M transmit antennas and a receive unit with N receive antennas and a communication system such as a wireless network (including networks with multiple access techniques such as TDMA, FDMA, CDMA, OFDMA) employing the method. The data is first processed to produce parallel spatial-multiplexed streams SMi, where i=1 . . . k, which are converted or mapped to transmit signals TSp, where p=1 . . . M, assigned for transmission from the M transmit antennas. Corresponding receive signals RSj, where j=1 . . . N, are received by the N receive antennas of the receiver and used to assess a quality parameter, such as a statistical signal parameter including SINR, SNR, power level, level crossing rate, level crossing duration of the signal of a predetermined threshold and reception threshold, or a parameter of the data, such as BER or packet error rate. The quality parameter is used to adaptively adjust k as well as other parameters such as coding and mapping to transmit antennas such that the communication parameter of the channel is maximized.
    • 使具有M个发送天线的发送单元和具有N个接收天线的接收单元之间的信道的数据容量,信号质量或吞吐量等通信参数最大化的方法以及诸如无线网络的通信系统(包括具有多个 接入技术,如TDMA,FDMA,CDMA,OFDMA)。 首先处理数据以产生并行空间复用流SMi,其中i = 1。 。 。 k,其被转换或映射到发射信号TSp,其中p = 1。 。 。 M,被分配用于从M个发射天线发射。 相应的接收信号RSj,其中j = 1。 。 。 N由接收机的N个接收天线接收并且用于评估质量参数,诸如包括SINR,SNR,功率电平,电平穿越率,预定阈值的信号的电平穿越持续时间和接收的统计信号参数 阈值或数据的参数,例如BER或分组错误率。 质量参数用于自适应地调整k以及其他参数,例如编码和映射到发射天线,使得信道的通信参数最大化。
    • 10. 发明授权
    • Wireless communication system using joined transmit and receive processing
    • 使用加入发送和接收处理的无线通信系统
    • US06377819B1
    • 2002-04-23
    • US09544621
    • 2000-04-06
    • David J. GesbertPeroor K. SebastianArogyaswami J. Paulraj
    • David J. GesbertPeroor K. SebastianArogyaswami J. Paulraj
    • H04Q720
    • H04B7/04
    • A wireless communication system comprises a base transceiver station and R remote transceivers T1 . . . TR, each of the remote transceivers having multiple antennas. The base transceiver station has N base station antennas, each of the remote transceivers has M remote antennas, and N≧R. The base transceiver station simultaneously transmits information signals s1 . . . sR to remote transceivers T1 . . . TR, respectively. The base transceiver station comprises processing means for selecting R discrimination vectors V1 . . . VR, each of the discrimination vectors having N components. The base transceiver station computes an N-component transmission signal vector U as follows: U = ∑ i = 1 R ⁢   ⁢ V i ⁢ s i . The transmission signal vector U is transmitted from the base transceiver station, preferably one component of U per base station antenna. The ith remote transceiver Ti receives an M-component signal vector Zi through its M remote antennas, one component of Zi per antenna. The ith remote transceiver computes a reconstructed signal yi from the received signal vector Zi. The discrimination vectors V1 . . . VR are preferably selected to optimize an efficiency of transmission, and the computation of yi preferably optimizes an efficiency of reception. Some embodiments of the present system and method employ time filtering, and some embodiments use frequency filtering.
    • 无线通信系统包括基站收发台和R远程收发器T1。 。 。 TR,每个远程收发器具有多个天线。 基站收发台具有N个基站天线,每个远端收发器具有M个远程天线,N> = R。 基站收发台同时发送信息信号s1。 。 。 sR到远程收发器T1。 。 。 TR。 基站收发台包括用于选择R个鉴别向量V1的处理装置。 。 。 VR,每个鉴别向量具有N个分量。 基站收发台如下计算N分量传输信号向量U:发送信号向量U从基站发送,优选为每个基站天线的一个分量。 第i个远程收发器Ti通过其M个远程天线接收M分量信号矢量Zi,每个天线Zi的一个分量。 第i个远程收发器从接收信号矢量Zi计算重构信号yi。 鉴别向量V1。 。 。 优选选择VR以优化传输效率,并且yi的计算优选地优化接收效率。 本系统和方法的一些实施例采用时间滤波,并且一些实施例使用频率滤波。