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    COMMUNICATION APPARATUS AND COMMUNICATION METHOD
    1.
    发明申请
    COMMUNICATION APPARATUS AND COMMUNICATION METHOD 审中-公开
    通信设备和通信方法

    公开(公告)号：US20110188454A1

    公开(公告)日：2011-08-04

    申请号：US13020431

    申请日：2011-02-03

    申请人： Jihyung Kim ,  Dong Hyn Ahn ,  Kwang Jae Lim ,  DongSeung Kwon

    发明人： Jihyung Kim ,  Dong Hyn Ahn ,  Kwang Jae Lim ,  DongSeung Kwon

    IPC分类号： H04W56/00

    CPC分类号： H04W56/00

    摘要： A communication apparatus which can operate as a cluster header and a node is disclosed. The cluster header transmits a cluster header preamble signal in a first time interval of the frame, and transmits a cluster control signal in a second time interval of the frame. The cluster header receives a node ranging signal in a third time interval of the frame, receives a node preamble in a fourth time interval of the frame, and receives a node control signal in a fifth time interval of the frame. The cluster header can determine the operation mode of a reported node.

    摘要翻译： 公开了可以作为簇头和节点操作的通信装置。 簇头在帧的第一时间间隔中发送簇头前导信号，并且在帧的第二时间间隔中发送簇控制信号。 簇头在帧的第三时间间隔中接收节点测距信号，在帧的第四时间间隔中接收节点前导码，并在该帧的第五时间间隔中接收节点控制信号。 集群头可以确定报告节点的操作模式。

    Retransmission apparatus and method
    2.
    发明授权
    Retransmission apparatus and method 有权
    重发装置和方法

    公开(公告)号：US08548076B2

    公开(公告)日：2013-10-01

    申请号：US13061639

    申请日：2009-08-27

    申请人： DongSeung Kwon ,  Byung-Jae Kwak ,  Bum-Soo Park

    发明人： DongSeung Kwon ,  Byung-Jae Kwak ,  Bum-Soo Park

    IPC分类号： H04K1/10

    CPC分类号： H04L1/1893

    摘要： A retransmission method maps at least some bits of codeword to symbols according to a first modulation method at the time of first transmission. The retransmission method maps at least some bits of the codeword to symbols according to a second modulation method that is different from the first modulation method at the time of second transmission after the first transmission. In this case, the second modulation method may have a lower modulation order than that of the first modulation method, or a sum of average reliability per bit of symbol according to the second modulation may be larger than a sum of average reliability per bit of symbol according to the first modulation method.

    摘要翻译： 在第一次发送时，重发方法将码字的至少一些比特根据第一调制方法映射到符号。 根据在第一次传输之后的第二次发送时与第一调制方法不同的第二调制方法，重传方法将码字的至少一些比特映射到符号。 在这种情况下，第二调制方法可以具有比第一调制方法更低的调制次序，或者根据第二调制的符号的每比特的平均可靠性的总和可以大于符号的每比特的平均可靠性的总和 根据第一调制方式。

    Transmitter having full-diversity and full-rate, a linear space-time code generating method for the transmitter, and a MIMO system using same
    6.
    发明授权
    Transmitter having full-diversity and full-rate, a linear space-time code generating method for the transmitter, and a MIMO system using same 失效
    具有全分集和全速率的发射机，用于发射机的线性时空码产生方法，以及使用它的MIMO系统

    公开(公告)号：US08149945B2

    公开(公告)日：2012-04-03

    申请号：US12346148

    申请日：2008-12-30

    申请人： DongSeung Kwon ,  Seong Keun Oh ,  Moon Il Lee ,  Seung Joon Lee ,  Jong-Ee Oh

    发明人： DongSeung Kwon ,  Seong Keun Oh ,  Moon Il Lee ,  Seung Joon Lee ,  Jong-Ee Oh

    IPC分类号： H04L1/02

    CPC分类号： H04B7/0667 ,  H04B7/0447 ,  H04B7/0615 ,  H04L1/0643

    摘要： A space-time code has a codeword matrix. The codeword matrix is a square matrix with dimension equal to the number of the transmit antennas, wherein a row of the codeword matrix represents combined signals transmitted by each transmit antenna and a column of the codeword matrix represents timeslots of the number of the transmit antennas. Signals are transmitted through the rows of the number of spatial multiplexing rate, in each column of the matrix. Further, the symbols of the number of the transmit antennas are combined by way of utilizing complex weights, in each row of the matrix. With this space-time code, a delay is minimized, so that change of channels can be managed efficiently. Also, the space-time code has minimum number of data symbols, and thus its complexity is minimized.

    摘要翻译： 时空码具有码字矩阵。 码字矩阵是尺寸等于发射天线数量的矩阵，其中码字矩阵的行表示由每个发射天线发射的组合信号，并且码字矩阵的列表示发射天线的数量的时隙。 在矩阵的每列中，信号通过空间复用速率数的行传输。 此外，通过在矩阵的每一行中利用复数权重来组合发射天线的数量的符号。 利用这个空时码，延迟最小化，可以有效地管理频道的改变。 此外，时空码具有最小数量的数据符号，因此其复杂度被最小化。

    COMMUNICATION METHOD BETWEEN WIRELESS NODES
    7.
    发明申请
    COMMUNICATION METHOD BETWEEN WIRELESS NODES 审中-公开
    无线节点之间的通信方法

    公开(公告)号：US20110206033A1

    公开(公告)日：2011-08-25

    申请号：US13032129

    申请日：2011-02-22

    申请人： Dong Hyun AHN ,  Choongil Yeh ,  DongSeung Kwon ,  Kwang Jae Lim ,  Jihyung Kim ,  Young Seog Song ,  Wooram Shin

    发明人： Dong Hyun AHN ,  Choongil Yeh ,  DongSeung Kwon ,  Kwang Jae Lim ,  Jihyung Kim ,  Young Seog Song ,  Wooram Shin

    IPC分类号： H04W56/00

    CPC分类号： H04W74/0816 ,  H04B7/2656 ,  H04W28/26

    摘要： In a wireless communication system, when a transmission node has data to be transmitted to a reception node, it checks an acknowledgement slot of the current communication frame and transmits information regarding a reception available acknowledgement slot to the reception node through a request-to-send (RTS) slot in the current communication frame, and the reception node transmits information regarding the data slot available for receiving among at least one data slot corresponding to the reception available acknowledgement slot to the transmission node through a clear-to-send (CTS) slot corresponding to the data request slot in the current communication frame. Thereafter, the transmission node transmits data to the reception node through a reservation data slot of the subsequent communication frame until the message transmission fails or finishes.

    摘要翻译： 在无线通信系统中，当传输节点具有要发送到接收节点的数据时，它检查当前通信帧的确认时隙，并通过请求发送将关于接收可用确认时隙的信息发送到接收节点 （RTS）时隙，并且接收节点通过清除发送（CTS）向发送节点发送关于可用于接收的数据时隙的信息到与发送节点对应的至少一个数据时隙中， 与当前通信帧中的数据请求时隙对应的时隙。 此后，传输节点通过后续通信帧的预留数据时隙向接收节点发送数据，直到消息传输失败或完成为止。

    RETRANSMISSION APPARATUS AND METHOD
    9.
    发明申请
    RETRANSMISSION APPARATUS AND METHOD 有权
    恢复装置和方法

    公开(公告)号：US20110222626A1

    公开(公告)日：2011-09-15

    申请号：US13061639

    申请日：2009-08-27

    申请人： DongSeung Kwon ,  Byung-Jae Kwak ,  Bum-Soo Park

    发明人： DongSeung Kwon ,  Byung-Jae Kwak ,  Bum-Soo Park

    IPC分类号： H04L27/04

    CPC分类号： H04L1/1893

    摘要： A retransmission method maps at least some bits of codeword to symbols according to a first modulation method at the time of first transmission. The retransmission method maps at least some bits of the codeword to symbols according to a second modulation method that is different from the first modulation method at the time of second transmission after the first transmission. In this case, the second modulation method may have a lower modulation order than that of the first modulation method, or a sum of average reliability per bit of symbol according to the second modulation may be larger than a sum of average reliability per bit of symbol according to the first modulation method.

    摘要翻译： 在第一次发送时，重发方法将码字的至少一些比特根据第一调制方法映射到符号。 根据在第一次传输之后的第二次发送时与第一调制方法不同的第二调制方法，重传方法将码字的至少一些比特映射到符号。 在这种情况下，第二调制方法可以具有比第一调制方法更低的调制次序，或者根据第二调制的符号的每比特的平均可靠性的总和可以大于符号的每比特的平均可靠性的总和 根据第一调制方式。