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    Interference cancellation with MU-MIMO scheme in SC-FDMA system
    2.
    发明授权
    Interference cancellation with MU-MIMO scheme in SC-FDMA system 有权
    SC-FDMA系统中MU-MIMO方案的干扰消除

    公开(公告)号：US08416867B2

    公开(公告)日：2013-04-09

    申请号：US12623658

    申请日：2009-11-23

    申请人： Hyuck Chan Kwon ,  Hee Gul Park ,  Jung Seung Lee ,  Byoung Seong Park

    发明人： Hyuck Chan Kwon ,  Hee Gul Park ,  Jung Seung Lee ,  Byoung Seong Park

    IPC分类号： H04K1/10

    CPC分类号： H04J11/0043

    摘要： An apparatus and a method for interference cancellation using a multi-user multiple input multiple output (MU-MIMO) scheme in a single carrier frequency division multiple access (SC-FDMA) system are disclosed. Received data of every terminal are classified into first received data and second received data. The first received data has lower reliability and the second received data has higher reliability than the first received data. The second received data is transmitted to an upper layer. Interference signals are formed with the second received data based on a channel estimation value. The interference signals are removed from the first received data, and the interference signal free first received data is transmitted to the upper layer.

    摘要翻译： 公开了一种在单载波频分多址（SC-FDMA）系统中使用多用户多输入多输出（MU-MIMO）方案进行干扰消除的装置和方法。 每个终端的接收数据分为第一接收数据和第二接收数据。 第一个接收的数据具有较低的可靠性，第二个接收到的数据比第一个接收到的数据具有更高的可靠性。 第二个接收到的数据被发送到上一层。 基于信道估计值，用第二接收数据形成干扰信号。 干扰信号从第一个接收到的数据中去除，无干扰信号的第一个接收的数据被传送到上层。

    Apparatus and method for transmitting and receiving a RACH signal in SC-FDMA system
    3.
    发明申请
    Apparatus and method for transmitting and receiving a RACH signal in SC-FDMA system 有权
    用于在SC-FDMA系统中发送和接收RACH信号的装置和方法

    公开(公告)号：US20070171889A1

    公开(公告)日：2007-07-26

    申请号：US11654000

    申请日：2007-01-17

    申请人： Sung Lark Kwon ,  Dong Joo Park ,  Hyuck Chan Kwon ,  Young Kwon Ryu ,  Hoo Young Jeong ,  Hong Jik Kim ,  Jung Seung Lee ,  Jae Won Jang ,  Byoung Seong Park ,  Hee Gul Park

    发明人： Sung Lark Kwon ,  Dong Joo Park ,  Hyuck Chan Kwon ,  Young Kwon Ryu ,  Hoo Young Jeong ,  Hong Jik Kim ,  Jung Seung Lee ,  Jae Won Jang ,  Byoung Seong Park ,  Hee Gul Park

    IPC分类号： H04J3/06

    CPC分类号： H04W72/082 ,  H04J13/0059 ,  H04L5/0005 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/023 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2655

    摘要： Embodiments of the present invention may provide an apparatus and a method for transmitting and receiving a random access channel (RACH) in a single carrier-frequency division multiple access (SC-FDMA) system. A frequency domain RACH signal may be mapped to a localized sub-frequency band of an entire frequency band available to the SC-FDMA system. A guard band including at least one sub carrier may be allocated between the RACH signal band and other channel signal bands. A guard time may be allocated between the RACH signal and other channel signals in the time domain. The RACH signal may include a short message including information related to a mobile station. The RACH signal may be detected in a frequency based method, a time based method or a sliding matched filter based method. Receiver complexity can be decreased if the RACH signal includes a CAZAC code sequence for a preamble. In such a case, a receive delay may be simply calculated and then adjusted more accurately.

    摘要翻译： 本发明的实施例可以提供在单载波频分多址（SC-FDMA）系统中发送和接收随机接入信道（RACH）的装置和方法。 频域RACH信号可以映射到SC-FDMA系统可用的整个频带的本地化子频带。 可以在RACH信号频带和其它信道信号频带之间分配包括至少一个子载波的保护频带。 可以在RACH信号和时域中的其它信道信号之间分配保护时间。 RACH信号可以包括包括与移动台有关的信息的短消息。 可以基于频率的方法，基于时间的方法或基于滑动匹配滤波器的方法来检测RACH信号。 如果RACH信号包括用于前同步码的CAZAC码序列，则接收机复杂度可以降低。 在这种情况下，可以简单地计算接收延迟，然后更精确地进行调整。

    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING A RACH SIGNAL IN SC-FDMA SYSTEM
    4.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING A RACH SIGNAL IN SC-FDMA SYSTEM 审中-公开
    用于在SC-FDMA系统中传输和接收RACH信号的装置和方法

    公开(公告)号：US20130250921A1

    公开(公告)日：2013-09-26

    申请号：US13894973

    申请日：2013-05-15

    申请人： Sung Lark KWON ,  Dong Joo Park ,  Hyuck Chan Kwon ,  Young Kwon Ryu ,  Hoo Young Jeong ,  Hong Jik Kim ,  Jung Seong Lee ,  Jae Won Jang ,  Byoung Seong Park ,  Hee Gul Park

    发明人： Sung Lark KWON ,  Dong Joo Park ,  Hyuck Chan Kwon ,  Young Kwon Ryu ,  Hoo Young Jeong ,  Hong Jik Kim ,  Jung Seong Lee ,  Jae Won Jang ,  Byoung Seong Park ,  Hee Gul Park

    IPC分类号： H04W72/08

    CPC分类号： H04W72/082 ,  H04J13/0059 ,  H04L5/0005 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/023 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2655

    摘要： Embodiments of the present invention may provide an apparatus and a method for transmitting and receiving a random access channel (RACH) in a single carrier-frequency division multiple access (SC-FDMA) system. A frequency domain RACH signal may be mapped to a localized sub-frequency band of an entire frequency band available to the SC-FDMA system. A guard band including at least one sub carrier may be allocated between the RACH signal band and other channel signal bands. A guard time may be allocated between the RACE signal and other channel signals in the time domain. The RACH signal may include a short message including information related to a mobile station. The RACE signal may be detected in a frequency based method, a time based method or a sliding matched filter based method. Receiver complexity can be decreased if the RACH signal includes a CAZAC code sequence for a preamble. In such a case, a receive delay may be simply calculated and then adjusted more accurately.

    摘要翻译： 本发明的实施例可以提供在单载波频分多址（SC-FDMA）系统中发送和接收随机接入信道（RACH）的装置和方法。 频域RACH信号可以映射到SC-FDMA系统可用的整个频带的本地化子频带。 可以在RACH信号频带和其它信道信号频带之间分配包括至少一个子载波的保护频带。 可以在RACE信号和时域中的其他信道信号之间分配保护时间。 RACH信号可以包括包括与移动台有关的信息的短消息。 可以以基于频率的方法，基于时间的方法或基于滑动匹配滤波器的方法来检测RACE信号。 如果RACH信号包括用于前同步码的CAZAC码序列，则接收机复杂度可以降低。 在这种情况下，可以简单地计算接收延迟，然后更精确地进行调整。

    Method and apparatus for transmitting acknowledgement signals
    5.
    发明授权
    Method and apparatus for transmitting acknowledgement signals 有权

    公开(公告)号：US07143330B2

    公开(公告)日：2006-11-28

    申请号：US10334782

    申请日：2003-01-02

    申请人： Joon Kui Ahn ,  Hyuck Chan Kwon

    发明人： Joon Kui Ahn ,  Hyuck Chan Kwon

    IPC分类号： H04L1/18

    CPC分类号： H04W52/286 ,  H04L1/1692 ,  H04L1/1867 ,  H04L2001/125

    摘要： The present invention relates to a power controlling method in a mobile radio communication system using Automatic Repeat reQuest (ARQ) scheme, and more particularly to a power controlling method of response (ACK/NACK) signals for transmitting the ACK/NACK signals in different power based on the permissible probabilities of reception error that the system requires. When the ACK/NACK signals are transmitted and received in the automatic repeat request (ARQ) system, since the ACK/NACK signals can be transmitted in accordance with the transmission power satisfying an error rate required in each signal by differentiating the transmission power of the signal according to each ACK/NACK, the power consumption required in the transmission of the NACK signal can be reduced.

    Method and apparatus for transmitting acknowledgement signals
    6.
    发明授权
    Method and apparatus for transmitting acknowledgement signals 有权
    用于发送确认信号的方法和装置

    公开(公告)号：US07653856B2

    公开(公告)日：2010-01-26

    申请号：US11546404

    申请日：2006-10-12

    申请人： Joon Kui Ahn ,  Hyuck Chan Kwon

    发明人： Joon Kui Ahn ,  Hyuck Chan Kwon

    IPC分类号： H04L1/18

    CPC分类号： H04W52/286 ,  H04L1/1692 ,  H04L1/1867 ,  H04L2001/125

    摘要： The present invention relates to a power controlling method in a mobile radio communication system using Automatic Repeat reQuest (ARQ) scheme, and more particularly to a power controlling method of response (ACK/NACK) signals for transmitting the ACK/NACK signals in different power based on the permissible probabilities of reception error that the system requires. When the ACK/NACK signals are transmitted and received in the automatic repeat request (ARQ) system, since the ACK/NACK signals can be transmitted in accordance with the transmission power satisfying an error rate required in each signal by differentiating the transmission power of the signal according to each ACK/NACK, the power consumption required in the transmission of the ACK/NACK signals can be reduced.

    摘要翻译： 本发明涉及使用自动重复请求（ARQ）方案的移动无线电通信系统中的功率控制方法，更具体地说，涉及用于以不同功率发送ACK / NACK信号的响应功率控制方法（ACK / NACK） 基于系统所需的接收错误的允许概率。 当在自动重传请求（ARQ）系统中发送和接收ACK / NACK信号时，由于可以根据满足每个信号所需的错误率的发送功率来传输ACK / NACK信号， 信号根据每个ACK / NACK，可以减少传送ACK / NACK信号所需的功耗。

    Method for controlling data transmission in a radio communications system
    7.
    发明授权
    Method for controlling data transmission in a radio communications system 有权

    公开(公告)号：US07047473B2

    公开(公告)日：2006-05-16

    申请号：US10142952

    申请日：2002-05-13

    申请人： Seung Hoon Hwang ,  Hyuck Chan Kwon

    发明人： Seung Hoon Hwang ,  Hyuck Chan Kwon

    IPC分类号： G08C25/02 ,  H04L1/18

    CPC分类号： H04L1/1812 ,  H04B17/24 ,  H04B17/309 ,  H04L1/0001 ,  H04L1/0026 ,  H04L1/1671

    摘要： A method for controlling the transmission of data in a radio communications system transmits response signals from a receiver which includes information that reflects received signal quality, as well as information indicating whether an error has occurred in the data transmission. In one case, acknowledgment signals or negative acknowledgment signals may be regarded as no reply and not forwarded to a transmitter. In another case, the signals could be recognized as an acknowledgment or retransmission request by a receiver. Preferably, the signals transmitted from the receiver to the transmitter are composed of more than 2-bit multiplexed information. By transmitting response signals of this type, the transmission efficiency of packet data may be increased, and the automatic repeat request (ARQ) performance by the system may be greatly improved.