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    • 74. 发明授权
    • Method for channel state feedback by quantization of time-domain coefficients
    • 通过时域系数量化的信道状态反馈方法
    • US08331481B2
    • 2012-12-11
    • US12274046
    • 2008-11-19
    • Seung Joon LeeDong Seung KwonGiuseppe CaireHooman Shirani-Mehr
    • Seung Joon LeeDong Seung KwonGiuseppe CaireHooman Shirani-Mehr
    • H04L27/00
    • H04B17/336H04B7/0434H04B7/0632H04B17/24H04L5/0053H04L25/0204
    • The present invention relates to a channel state transmission method using time domain coefficient quantization. A terminal measures channel information in the time domain and transmits it to a base station. In this instance, a multipath frequency selective fading channel is displayed in a tapped delay line format configured with a per-path path delay value and a path gain in the time domain, differentiates a quantization level for each path gain for more efficient transmission, quantizes the same, and transmits it to a transmitter. Therefore, while the amount of bandwidths required for transmitting state information from the terminal to the base station is reduced, the base station can efficiently acquire channel state information on the entire bandwidths. Also, the base station transmits signals to many terminals through beamforming by using the acquired reliable channel state information, thereby increasing the terminal's signal receiving performance.
    • 本发明涉及使用时域系数量化的信道状态传输方法。 终端在时域中测量信道信息并将其发送到基站。 在这种情况下,以具有每路径路径延迟值和时域中的路径增益的抽头延迟线格式显示多路径频率选择性衰落信道,对于每个路径增益的量化级别进行区分以实现更有效的传输,量化 相同,并将其发送到发射机。 因此,尽管从终端向基站发送状态信息所需的带宽量减少,但是基站可以有效地获取关于整个带宽的信道状态信息。 此外,基站通过使用获取的可靠信道状态信息通过波束形成向多个终端发送信号,从而增加终端的信号接收性能。
    • 75. 发明授权
    • Pulse shaping method
    • 脉冲整形法
    • US08284831B2
    • 2012-10-09
    • US12566959
    • 2009-09-25
    • Seung Joon LeeDong Seung Kwon
    • Seung Joon LeeDong Seung Kwon
    • H03K9/04H03K7/08H04B1/66
    • H04L25/03834
    • Provided is a pulse shaping method. A time interval is predefined so as to shape a pulse used for a transmit pulse and a receive filter response, a parameter is generated by using a weight coefficient and a plurality of cosine functions that are multiplied and added to be output during the predetermined time interval, and 0 is output during another interval, thereby shaping the pulse. The weight coefficient is updated by using the normalized MSE so as to shape the pulse to be optimized for the predetermined time interval.
    • 提供了一种脉冲整形方法。 预定义时间间隔以形成用于发射脉冲和接收滤波器响应的脉冲,通过使用加权系数和多个余弦函数来生成参数,所述权重系数和多个余弦函数在预定时间间隔期间相乘并被相加输出 并且在另一个间隔期间输出0,从而对脉冲进行整形。 通过使用归一化MSE来更新权重系数,以便对预定时间间隔进行优化的脉冲进行整形。
    • 76. 发明申请
    • METHOD TO GENERATE POWER CONTROL INFORMATION AND METHOD OF POWER CONTROL FOR UPLINK
    • 生成电源控制信息的方法和上电的电源控制方法
    • US20110039597A1
    • 2011-02-17
    • US12989034
    • 2009-04-21
    • Ji Hyung KimDong Seung KwonJu-Hyup KimEen-Kee Hong
    • Ji Hyung KimDong Seung KwonJu-Hyup KimEen-Kee Hong
    • H04W52/34H04L27/26
    • H04W52/46H04L5/0032H04L5/0037H04L5/0062H04L5/0094H04W52/40H04W52/42
    • In a communication system including a plurality of base stations and a plurality of terminals belonging to each of the base stations, the base station receives information on subcarriers allocated to a terminal that belongs to an adjacent base station from the adjacent base station. Thereafter, the base station generates power control information on the basis of the subcarrier information and transmits the power control information to the terminal, and the terminal controls uplink power on the basis of the received power control information. At this time, the power control information, as information based on estimating hitting between subcarriers used by the terminal that belongs to the base station and subcarriers used by the adjacent base station, may be a ratio found by dividing the total number of subcarriers used by each terminal that belongs to the adjacent base station by the entire number of subcarriers that can be used by the base station.
    • 在包括属于每个基站的多个基站和多个终端的通信系统中,基站从相邻基站接收分配给属于相邻基站的终端的子载波的信息。 此后,基站基于子载波信息生成功率控制信息,并向终端发送功率控制信息,并且终端基于接收到的功率控制信息来控制上行链路功率。 此时,作为基于由属于基站的终端使用的子载波之间的估计击打的信息和由相邻基站使用的子载波的功率控制信息可以是通过将所使用的副载波的总数除以 属于相邻基站的每个终端由基站可以使用的整个子载波数量。
    • 79. 发明申请
    • METHOD FOR SELECTIVE TRANSMITTING/RECEIVING ANTENNA REPETITION
    • 选择性发射/接收天线重复的方法
    • US20100157876A1
    • 2010-06-24
    • US12603675
    • 2009-10-22
    • Young Seog SONGDong Seung Kwon
    • Young Seog SONGDong Seung Kwon
    • H04B7/14
    • H04B7/2606
    • Disclosed is a method for selective transmitting/receiving antennal repetition. A repeater performs wireless communication with a terminal located in a jurisdiction repetition area by using one transmitting/receiving antenna, and communicates with a base station by using multiple transmitting/receiving antennas. The repeater, in a downlink, selectively receives a signal transmitted from a specific transmitting antenna of the base station by using a signal process technology, and amplifies and transmits the signal to the repetition area. Further, in an uplink, the repeater receives a signal received from the terminal in the repetition area and then transmits the signal to the base station. In this operation, the signal transmitted to the base station is processed by the repeater such that a specific receiving antenna the base station can receive the signal with the largest strength.
    • 公开了一种用于选择性地发送/接收天线重复的方法。 中继器通过使用一个发送/接收天线与位于管辖重复区域中的终端执行无线通信,并且通过使用多个发送/接收天线与基站进行通信。 在下行链路中,中继器通过使用信号处理技术有选择地接收从基站的特定发送天线发送的信号,并且将信号放大并发送到重复区域。 此外,在上行链路中,中继器接收从重复区域中的终端接收的信号,然后将该信号发送到基站。 在该操作中,发送到基站的信号由中继器处理,使得基站的特定接收天线可以接收具有最大强度的信号。