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130 条记录 (耗时 0.036 秒)

    Wireless communication system for allocating transmission period
    21.
    发明申请
    Wireless communication system for allocating transmission period 有权
    用于分配传输周期的无线通信系统

    公开(公告)号：US20070086418A1

    公开(公告)日：2007-04-19

    申请号：US11582169

    申请日：2006-10-17

    申请人： Kyung-Hun Jang ,  Jong-Ae Park ,  Dong-Jun Lee ,  Young-Soo Kim ,  Hyo-Sun Hwang

    发明人： Kyung-Hun Jang ,  Jong-Ae Park ,  Dong-Jun Lee ,  Young-Soo Kim ,  Hyo-Sun Hwang

    IPC分类号： H04B7/212

    CPC分类号： H04L47/26 ,  H04B7/2656 ,  H04L1/0007 ,  H04L1/0025 ,  H04L1/1614 ,  H04L1/1812 ,  H04L1/1854 ,  H04L1/1887 ,  H04L47/10 ,  H04L47/14 ,  H04L47/33 ,  H04L47/365 ,  H04W28/14 ,  H04W48/08 ,  H04W52/0216 ,  H04W52/50 ,  H04W72/0406 ,  H04W74/04 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/142 ,  Y02D70/23 ,  Y02D70/449

    摘要： A system is provided for efficiently allocating a transmission period in a wireless network system. An access point (AP) transmits a PSMP frame indicating a downlink period provided to each station (STA) and a minimum amount of an uplink period allocated to each STA, and at least one sub PSMP frame indicating an uplink period additionally provided for an STA that transmitted a resource request message for remaining queued data in the uplink period indicated by the PSMP frame. If the uplink period indicated by the PSMP frame is insufficient to transmit the queued data, the STA transmits a data unit including a part of the queued data and a resource request message for the remaining queued data in the uplink period. After transmitting the resource request message, the STA receives the sub PSMP frame after the full period indicated by the sub PSMP frame, and transmits the remaining queued data to the AP in the uplink period indicted by the sub PSMP frame.

    摘要翻译： 提供一种用于在无线网络系统中有效地分配传输周期的系统。 接入点（AP）发送指示提供给每个站（STA）的下行链路周期的PSMP帧和分配给每个STA的最小量的上行链路周期，以及指示附加地提供给STA的上行链路周期的至少一个子PSMP帧 在由PSMP帧指示的上行链路时段中发送用于剩余队列数据的资源请求消息。 如果由PSMP帧指示的上行链路周期不足以发送排队的数据，则STA在上行链路周期中发送包括一部分排队的数据的数据单元和剩余的排队数据的资源请求消息。 在发送资源请求消息之后，STA在由子PSMP帧指示的整个周期之后接收子PSMP帧，并且在由子PSMP帧指示的上行链路周期中将剩余的排队数据发送到AP。

    Method for detecting and decoding a signal in a MIMO communication system
    23.
    发明申请
    Method for detecting and decoding a signal in a MIMO communication system 审中-公开
    用于在MIMO通信系统中检测和解码信号的方法

    公开(公告)号：US20060215781A1

    公开(公告)日：2006-09-28

    申请号：US11386490

    申请日：2006-03-22

    申请人： Dong-Jun Lee ,  In-Kyu Lee ,  Min-Young Ahn ,  Jong-Han Kim ,  Heun-Chul Lee

    发明人： Dong-Jun Lee ,  In-Kyu Lee ,  Min-Young Ahn ,  Jong-Han Kim ,  Heun-Chul Lee

    IPC分类号： H04L1/02 ,  H04B7/02

    CPC分类号： H04L27/2647 ,  H04L1/0656 ,  H04L2025/03414

    摘要： A method for detecting and decoding a signal in a communication system based on Multiple-Input Multiple-Output (MIMO)-Orthogonal Frequency Division Multiplexing (OFDM). A signal is received through multiple receive antennas. A decision error occurring at a symbol decision time is considered and a symbol is detected from transmitted symbols. Original data transmitted from the detected symbol is recovered. The performance of a coded bit system can be significantly improved using a new equalization matrix G considering a decision error.

    摘要翻译： 一种用于在基于多输入多输出（MIMO） - 正交频分复用（OFDM）的通信系统中检测和解码信号的方法。 通过多个接收天线接收信号。 考虑在符号决定时间发生的判定错误，并且从发送的符号检测符号。 从检测到的符号发送的原始数据被恢复。 考虑到决策误差，使用新的均衡矩阵G可以显着改善编码比特系统的性能。

    Method for reporting reception result of packets in mobile communication system
    25.
    发明申请
    Method for reporting reception result of packets in mobile communication system 有权

    公开(公告)号：US20060034277A1

    公开(公告)日：2006-02-16

    申请号：US11202895

    申请日：2005-08-12

    申请人： Kyung-Hun Jang ,  Jong-Ae Park ,  Dong-Jun Lee ,  Jin-Bong Chang ,  Young-Soo Kim

    发明人： Kyung-Hun Jang ,  Jong-Ae Park ,  Dong-Jun Lee ,  Jin-Bong Chang ,  Young-Soo Kim

    IPC分类号： H04L12/56

    CPC分类号： H04L1/1614

    摘要： Disclosed is a bitmap structure which enables the size of a bitmap field containing reception result information to be significantly reduced while fully performing its acknowledgment function. To this end, a message region for recording indicators, which enables reception success or failure for the maximum allowable SN level packets treatable by block ACK to be confirmed, is assigned. A message region for recording only the reception results for unsuccessfully received packets is also assigned. A receiving party confirms the unsuccessfully received packets through the indicators, and retransmits the unsuccessfully received packets. Also, a transmitting party provides the number of SN level packets and the maximum number of fragmentation packets to the receiving party. The receiving party determines an optimized bitmap configuration scheme, and transmits the reception results for the respective fragmentation packets to the transmitting party based on the determined bitmap configuration scheme.

    Method of estimating location of terminal in switched-beamforming based wireless communication system
    28.
    发明授权
    Method of estimating location of terminal in switched-beamforming based wireless communication system 有权
    基于交换波束成形的无线通信系统中终端位置的方法

    公开(公告)号：US07970356B2

    公开(公告)日：2011-06-28

    申请号：US11653199

    申请日：2007-01-12

    申请人： Chang-Woo Seo ,  Jin-Youn Cho ,  Dong-Jun Lee ,  Kyung-Hun Jang ,  Gang-Youl Yu

    发明人： Chang-Woo Seo ,  Jin-Youn Cho ,  Dong-Jun Lee ,  Kyung-Hun Jang ,  Gang-Youl Yu

    IPC分类号： H04B15/00 ,  H04W24/00

    CPC分类号： H04W16/28 ,  H04W64/00

    摘要： A terminal location estimation method in a wireless communication system in which an access point (AP) provides an access service to a plurality of terminals includes defining a plurality of beam spaces around the AP through space multiplexing; scheduling the beam spaces according to a predetermined pattern; simultaneously forming a beam in at least one beam space; and detecting the existence and location of a terminal according to whether a response message in response to the formed beam is received. Accordingly, an AP forms beams in a predetermined scheduling pattern, and each of the terminals detecting the beams registers its location by informing the AP that each of the terminals exists in a relevant beam area, and thus, a location of each of the terminals can be estimated without using a complex DOA algorithm.

    摘要翻译： 一种无线通信系统中的终端位置估计方法，其中接入点（AP）向多个终端提供接入服务包括通过空间多路复用来定义AP周围的多个波束空间; 根据预定模式调度光束空间; 同时在至少一个梁空间中形成梁; 以及根据是否接收到响应于所形成的波束的响应消息来检测终端的存在和位置。 因此，AP以预定的调度模式形成波束，并且通过向AP指示每个终端存在于相关的波束区域中，检测波束的每个终端登记其位置，因此每个终端的位置可以 估计不使用复杂的DOA算法。

    Channel estimation method in a MIMO wireless communication system
    30.
    发明授权
    Channel estimation method in a MIMO wireless communication system 有权
    MIMO无线通信系统中的信道估计方法

    公开(公告)号：US07756211B2

    公开(公告)日：2010-07-13

    申请号：US11219921

    申请日：2005-09-06

    申请人： Ji-Hyung Kim ,  Dae-Sik Hong ,  Dong-Jun Lee ,  Jong-Han Kim ,  Byung-Jun Park ,  Jong-Ae Park

    发明人： Ji-Hyung Kim ,  Dae-Sik Hong ,  Dong-Jun Lee ,  Jong-Han Kim ,  Byung-Jun Park ,  Jong-Ae Park

    IPC分类号： H04B7/02

    CPC分类号： H04B7/0842 ,  H04B7/04 ,  H04B7/0851

    摘要： A channel estimation method in a Multiple Input Multiple Output (MIMO) mobile communication system having a plurality of transmission antennas and a plurality of reception antennas is provided. In a method of transmitting, by a transmitter, channel estimation signals for channel estimation at a receiver, the transmission antennas transmit the same channel estimation signals for a first frame transmission duration, and transmit predetermined channel estimation signals corresponding to the number of the transmission antennas for a second frame transmission duration.

    摘要翻译： 提供了具有多个发送天线和多个接收天线的多输入多输出（MIMO）移动通信系统中的信道估计方法。 在发射机发送信道估计信号的方法中，发送天线在第一帧传输持续时间内传输相同的信道估计信号，并发送对应于发送天线数量的预定信道估计信号 用于第二帧传输持续时间。