利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

37 条记录 (耗时 0.031 秒)

    Method and system for controlling data rate in a communication system
    11.
    发明授权
    Method and system for controlling data rate in a communication system 有权
    用于控制通信系统中数据速率的方法和系统

    公开(公告)号：US07808954B2

    公开(公告)日：2010-10-05

    申请号：US11603652

    申请日：2006-11-22

    申请人： Seung-Hoon Nam ,  Cheol-Woo You ,  In-Soo Hwang ,  Yung-Soo Kim ,  Tarokh Vahid

    发明人： Seung-Hoon Nam ,  Cheol-Woo You ,  In-Soo Hwang ,  Yung-Soo Kim ,  Tarokh Vahid

    IPC分类号： H04B7/216

    CPC分类号： H04L1/0021 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025

    摘要： A system and method are provided for controlling a data rate in a communication system. A transmitter sets threshold values for classifying Modulation and Coding Scheme (MCS) levels. When receiving information about an MCS level desired to be used in the receiver, the transmitter sets an MCS level to be actually used in the receiver and transmits information about the set MCS level to the receiver. When detecting that the information is to be transmitted to the transmitter, the receiver computes instantaneous link capacity using a channel estimation result, sets an MCS level mapped to the instantaneous link capacity, and transmits information about the set MCS level to the transmitter. The receiver receives the information about the MCS level to be actually used from the transmitter.

    摘要翻译： 提供了一种用于控制通信系统中的数据速率的系统和方法。 发射机设置用于分类调制和编码方案（MCS）级别的阈值。 当接收到有关希望在接收机中使用的MCS级别的信息时，发射机设置在接收机中实际使用的MCS级别，并将关于所设置的MCS级别的信息发送给接收机。 当检测到要将信息发送到发射机时，接收机使用信道估计结果计算瞬时链路容量，设置映射到瞬时链路容量的MCS级别，并将关于所设置的MCS级别的信息发送到发射机。 接收机从发射机接收关于实际使用的MCS级别的信息。

    MAXIMUM LIKELIHOOD DETECTION APPARATUS AND METHOD IN A WIRELESS COMMUNICATION SYSTEM
    12.
    发明申请
    MAXIMUM LIKELIHOOD DETECTION APPARATUS AND METHOD IN A WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中的最大似然检测装置和方法

    公开(公告)号：US20090022251A1

    公开(公告)日：2009-01-22

    申请号：US12176734

    申请日：2008-07-21

    申请人： Eun-Seok Ko ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  In-Soo Hwang ,  Tak-Ki Yu

    发明人： Eun-Seok Ko ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  In-Soo Hwang ,  Tak-Ki Yu

    IPC分类号： H04L27/06 ,  H03D1/04 ,  H04B1/10

    CPC分类号： H04L25/0242 ,  H04B7/0854 ,  H04L27/066 ,  H04L2025/03426

    摘要： A Maximum Likelihood (ML) detection apparatus and method in a wireless communication system are provided, in which a Euclidean distance are calculated using at least one of channel matrix information, noise power information and modulation order information of each stream, Pairwise Error Rate (PER) are calculated using the Euclidean distance, an error probability of the each stream is calculated using the PER, the error probability of the each stream is ordered and sorted, and ML detection is performed using a result of the ordering and sorting.

    摘要翻译： 提供了一种无线通信系统中的最大似然（ML）检测装置和方法，其中使用信道矩阵信息，噪声功率信息和每个流的调制阶数信息中的至少一个来计算欧几里得距离，成对误差率 ）使用欧氏距离计算，使用PER计算每个流的误差概率，对每个流的误差概率进行排序和排序，并且使用排序和排序的结果来执行ML检测。

    APPARATUS AND METHOD FOR INTERFERENCE CANCELLATION IN MULTI-ANTENNA SYSTEM
    13.
    发明申请
    APPARATUS AND METHOD FOR INTERFERENCE CANCELLATION IN MULTI-ANTENNA SYSTEM 有权
    多天线系统干扰消除的装置和方法

    公开(公告)号：US20090010359A1

    公开(公告)日：2009-01-08

    申请号：US12165884

    申请日：2008-07-01

    申请人： In-Soo Hwang ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  Eun-Seok Ko ,  Vahid Tarokh

    发明人： In-Soo Hwang ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  Eun-Seok Ko ,  Vahid Tarokh

    IPC分类号： H04L27/04

    CPC分类号： H04W52/42 ,  H04L25/0206

    摘要： An apparatus and a method for interference cancellation in a transmitting end of a multi-antenna system are provided. A precode is generated which maximizes a diversity gain of one or more receive antennas using channel information of the receive antennas to be serviced. Transmit powers of the receive antennas are updated by taking into account a power loss and a shaping loss according to a dirty paper coding. Transmit signals are precoded by updating the precode according to the updated transmit powers. The dirty paper coding is performed on the precoded transmit signals to be transmitted to the receive antennas.

    摘要翻译： 提供了一种用于多天线系统的发送端的干扰消除的装置和方法。 生成使用要维护的接收天线的信道信息使一个或多个接收天线的分集增益最大化的预编码。 通过根据脏纸编码考虑功率损耗和成形损耗来更新接收天线的发射功率。 通过根据更新的发射功率更新预编码来对发射信号进行预编码。 对要发送到接收天线的预编码的发送信号执行脏纸编码。

    Relay system and method in a communication system
    16.
    发明授权
    Relay system and method in a communication system 有权
    通信系统中的中继系统和方法

    公开(公告)号：US07899392B2

    公开(公告)日：2011-03-01

    申请号：US11850221

    申请日：2007-09-05

    申请人： Young-Ho Jung ,  Yung-Soo Kim ,  In-Soo Hwang

    发明人： Young-Ho Jung ,  Yung-Soo Kim ,  In-Soo Hwang

    IPC分类号： H04B7/14 ,  H04B7/185 ,  H04B7/165 ,  H04B7/216 ,  H04B7/212 ,  H04B3/36 ,  H04B7/15 ,  H04J1/10 ,  H04J3/08 ,  H04J3/00 ,  H04L5/04 ,  H04W4/00

    CPC分类号： H04L25/20 ,  H04B7/155 ,  H04B7/2606 ,  H04L27/261

    摘要： A relaying method and system in a communication system having a Base Station (BS), a Mobile Station (MS) for communicating with the BS, and a Relay Station (RS) for relaying signals between the BS and the MS are provided. In the relaying method and system, the BS generates a BS pilot sequence and transmits the generated BS pilot sequence to the RS. wherein a partial cross correlation between the BS pilot sequence and an RS pilot sequence, being the BS pilot sequence relayed by the RS is always ‘0’. Accordingly, system capacity is more efficiently utilized.

    摘要翻译： 提供了具有基站（BS），用于与BS通信的移动站（MS）和用于在BS与MS之间中继信号的中继站（RS）的通信系统中的中继方法和系统。 在中继方法和系统中，BS生成BS导频序列，并将生成的BS导频序列发送给RS。 其中作为由RS中继的BS导频序列的BS导频序列与RS导频序列之间的部分互相关始终为“0”。 因此，更有效地利用系统容量。

    APPARATUS AND METHOD FOR SPACE-TIME CODING IN MULTIPLE-ANTENNA SYSTEM
    17.
    发明申请
    APPARATUS AND METHOD FOR SPACE-TIME CODING IN MULTIPLE-ANTENNA SYSTEM 有权
    多天线系统空时编码的装置及方法

    公开(公告)号：US20090135939A1

    公开(公告)日：2009-05-28

    申请号：US11856569

    申请日：2007-09-17

    申请人： In-Soo Hwang ,  Cheol-Woo You ,  Yung-Soo Kim ,  Young-Ho Jung

    发明人： In-Soo Hwang ,  Cheol-Woo You ,  Yung-Soo Kim ,  Young-Ho Jung

    IPC分类号： H04B7/02

    CPC分类号： H04B7/0669 ,  H04L1/0006 ,  H04L1/0618 ,  H04L1/0656 ,  H04L1/0662

    摘要： Disclosed is a space-time coding apparatus and method to flexibly adjust diversity/multiplexing orders in a multiple-antenna system. The transmitting apparatus for the multiple-antenna system includes a space-time code controller, an encoder, a demultiplexer, and a space-time encoder. The space-time code controller generates space-time codes by determining bases according to a multiplexing order required by a receiver. The encoder modulates and encodes data destined for the receiver in accordance with a predetermined modulation level. The demultiplexer demultiplexes data received from the encoder in order to transmit the data through at least one antenna. The space-time encoder space-time-codes the demultiplexed data using the space-time codes.

    摘要翻译： 公开了一种在多天线系统中灵活地调整分集/复用顺序的时空编码装置和方法。 用于多天线系统的发送装置包括时空码控制器，编码器，解复用器和时空编码器。 空时编码控制器通过根据接收机所要求的多路复用顺序确定基准来产生时空码。 编码器根据预定的调制电平对目的地为接收机的数据进行调制和编码。 解复用器对从编码器接收的数据进行解复用，以通过至少一个天线发送数据。 时空编码器使用空时码对多路复用数据进行空时编码。

    Apparatus and method for supporting a plurality of MIMO modes in a wireless communication system
    18.
    发明申请
    Apparatus and method for supporting a plurality of MIMO modes in a wireless communication system 有权
    一种用于在无线通信系统中支持多个MIMO模式的装置和方法

    公开(公告)号：US20090034639A1

    公开(公告)日：2009-02-05

    申请号：US12221225

    申请日：2008-07-31

    申请人： In-Soo Hwang ,  Yung-Soo Kim ,  Myeon-Kyun Cho

    发明人： In-Soo Hwang ,  Yung-Soo Kim ,  Myeon-Kyun Cho

    IPC分类号： H04L27/28

    CPC分类号： H04B7/0689 ,  H04B7/0417 ,  H04B7/0434 ,  H04B7/0697 ,  H04L1/0015 ,  H04L1/0025 ,  H04L1/0618 ,  H04L25/03343 ,  H04L2025/03802

    摘要： An apparatus and method for supporting a plurality of MIMO modes in a wireless communication system are provided, in which a receiver selects one of the plurality of MIMO modes according to at least one of a received signal strength, a speed of the receiver, a correlation between a transmitter and the receiver, a presence or absence of channel quality information, a precoding index, and an antenna information, a rank, and a number of users, generates feedback information in a transmission format corresponding to the selected MIMO mode, and transmits the feedback information to the transmitter using a feedback resources allocated according to the selected MIMO mode.

    摘要翻译： 提供了一种用于在无线通信系统中支持多个MIMO模式的装置和方法，其中接收机根据接收信号强度，接收机速度，相关性中的至少一个选择多个MIMO模式之一 在发射机和接收机之间，存在或不存在信道质量信息，预编码索引和天线信息，秩和用户数量，以对应于所选MIMO模式的传输格式生成反馈信息，并且发送 使用根据所选MIMO模式分配的反馈资源将反馈信息发送给发射机。

    Method and system for controlling data rate in a communication system
    19.
    发明申请
    Method and system for controlling data rate in a communication system 有权
    用于控制通信系统中数据速率的方法和系统

    公开(公告)号：US20070133480A1

    公开(公告)日：2007-06-14

    申请号：US11603652

    申请日：2006-11-22

    申请人： Seung-Hoon Nam ,  Cheol-Woo You ,  In-Soo Hwang ,  Yung-Soo Kim ,  Tarokh Vahid

    发明人： Seung-Hoon Nam ,  Cheol-Woo You ,  In-Soo Hwang ,  Yung-Soo Kim ,  Tarokh Vahid

    IPC分类号： H04B7/216

    CPC分类号： H04L1/0021 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025

    摘要： A system and method are provided for controlling a data rate in a communication system. A transmitter sets threshold values for classifying Modulation and Coding Scheme (MCS) levels. When receiving information about an MCS level desired to be used in the receiver, the transmitter sets an MCS level to be actually used in the receiver and transmits information about the set MCS level to the receiver. When detecting that the information is to be transmitted to the transmitter, the receiver computes instantaneous link capacity using a channel estimation result, sets an MCS level mapped to the instantaneous link capacity, and transmits information about the set MCS level to the transmitter. The receiver receives the information about the MCS level to be actually used from the transmitter.

    摘要翻译： 提供了一种用于控制通信系统中的数据速率的系统和方法。 发射机设置用于分类调制和编码方案（MCS）级别的阈值。 当接收到有关希望在接收机中使用的MCS级别的信息时，发射机设置在接收机中实际使用的MCS级别，并将关于所设置的MCS级别的信息发送给接收机。 当检测到要将信息发送到发射机时，接收机使用信道估计结果计算瞬时链路容量，设置映射到瞬时链路容量的MCS级别，并将关于所设置的MCS级别的信息发送到发射机。 接收机从发射机接收关于实际使用的MCS级别的信息。