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    • 51. 发明申请
    • APPARATUS FOR REMOVING INTERFERENCE BETWEEN NEIGHBOR CELLS IN A RADIO COMMUNICATION SYSTEM, AND METHOD FOR SAME
    • 用于去除无线电通信系统中的相邻小区之间的干扰的装置及其方法
    • US20110183692A1
    • 2011-07-28
    • US13057581
    • 2009-08-04
    • Yong Hwan LeeSeung-Hwan Lee
    • Yong Hwan LeeSeung-Hwan Lee
    • H04B15/00H04B7/26
    • H04B17/345
    • The present invention relates to an apparatus for removing interference between neighbor cells in a radio communication system, and to a method for same. The apparatus according to the present invention includes a receiving unit which receives receiving power information and signal-to-noise ratio information of a neighbor cell base station from multiple receiving antennas, a first determination unit for determining the number of major neighbor cell interference signals by using the received receiving power information and the signal-to-noise ratio information, a second determination unit for determining a candidate signal vector of a target signal in accordance with the determined number of major neighbor cell interference signals, the received signal-to-noise ratio, and the number of the multiple receiving antennas, a third determination unit for determining a candidate signal matrix of the major neighbor cell interference signals on the basis of the determined candidate signal vector of the target signal, and an estimation unit for estimating signals transmitted from the target base station or the neighbor base station by applying the determined candidate signal matrix of the major neighbor cell interference signals to the method of maximum likelihood. Whereby, the present invention removes interference between neighbor cells in an efficient manner, maintains the performance thereof, and reduces complexity at the receiving end.
    • 本发明涉及一种用于消除无线电通信系统中的相邻小区之间的干扰的装置及其方法。 根据本发明的装置包括:接收单元,其从多个接收天线接收相邻小区基站的接收功率信息和信噪比信息;第一确定单元,用于通过以下步骤确定主相邻小区干扰信号的数量: 使用接收到的接收功率信息和信噪比信息,第二确定单元,用于根据所确定的主要相邻小区干扰信号的数量确定目标信号的候选信号矢量,所接收的信号与噪声 比率和多个接收天线的数量,第三确定单元,用于基于所确定的目标信号的候选信号矢量来确定主相邻小区干扰信号的候选信号矩阵;以及估计单元,用于估计发送的信号 从目标基站或相邻基站通过应用 确定主要相邻小区干扰信号的候选信号矩阵为最大似然方法。 由此,本发明以有效的方式去除相邻小区之间的干扰,保持其性能,并降低接收端的复杂度。
    • 53. 发明授权
    • Aromatic polyamide filament and method of manufacturing the same
    • 芳香族聚酰胺丝及其制造方法
    • US07851061B2
    • 2010-12-14
    • US11994641
    • 2006-07-05
    • In-Sik HanJae-Young LeeSeung-Hwan LeeJae-Young KimSo-Yeon Kwon
    • In-Sik HanJae-Young LeeSeung-Hwan LeeJae-Young KimSo-Yeon Kwon
    • D02G3/00
    • D01F6/605D01D5/06Y02P20/582Y10T428/2913Y10T428/2969
    • Disclosed are wholly aromatic polyamide filament and a method of manufacturing the same, characterized by comprising multi-stage injection of a coagulant with sulfuric acid concentration lowered sequentially stage by stage, to a spun material fed into a coagulant injection tank. The present invention enables increase of a spinning and take-up velocity without occurrence of thread cutting by uniformly and evenly coagulating surface and inside of the spun material. In addition, the present invention recovers the coagulant or water already used and reuses the recovered coagulant or water in the earlier stages, so that it has advantages of saving production costs and reducing environmental contamination. Accordingly, the wholly aromatic polyamide filament produced according to the present invention has high crystallinity X, large apparent crystal size ACS and reduced defects in the crystal itself, thereby exhibiting more improved physical properties such as strength and modulus.
    • 公开了全芳香族聚酰胺长丝及其制造方法,其特征在于,包括多阶段将硫酸浓度逐级降低的凝结剂注入供给到凝结剂注入槽中的纺丝材料。 本发明通过使纺丝材料的表面和内部均匀均匀地凝固,能够提高纺丝和卷取速度,而不会产生螺纹切割。 此外,本发明回收已经使用的凝结剂或水,并且在早期阶段重新使用回收的凝结剂或水,从而具有节省生产成本和减少环境污染的优点。 因此,根据本发明生产的全芳族聚酰胺长丝具有高结晶度X,大的表观晶体尺寸ACS,并减少了晶体本身的缺陷,从而表现出更好的物理性能如强度和模量。
    • 54. 发明申请
    • METHOD AND APPARATUS FOR SCHEDULING MULTIPLE USERS IN A MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM
    • 用于在多输入多输出系统中调度多个用户的方法和装置
    • US20100266056A1
    • 2010-10-21
    • US12562231
    • 2009-09-18
    • Seung-Hwan LeeJin Up Kim
    • Seung-Hwan LeeJin Up Kim
    • H04L27/28
    • H04B7/0452
    • A multi-user scheduling method and apparatus in a Multiple-Input Multiple-Output (MIMO) system are disclosed. The multi-user scheduling method includes calculating a valid channel norm based on statistical characteristics of a channel for every user terminal, selecting a user set that maximizes the sum of valid channel norms and that includes as many user terminals as data are transmittable to simultaneously, and precoding transmission signals for the user terminals included in the user set according to a predetermined scheme. According to the present invention, the volume of computation required for multi-user selection is reduced greatly, thus making real-time implementation possible.
    • 公开了一种多输入多输出(MIMO)系统中的多用户调度方法和装置。 多用户调度方法包括基于每个用户终端的信道的统计特性来计算有效信道范数,选择使有效信道范数的和最大化的用户集合,并且包括尽可能多的用户终端同时传送数据, 以及根据预定方案对包括在用户组中的用户终端的发送信号进行预编码。 根据本发明,多用户选择所需的计算量大大降低,从而使得实时实现成为可能。
    • 59. 发明申请
    • Aromatic Polyamide Filament And Method Of Manufacturing The Same
    • 芳香族聚酰胺丝及其制造方法
    • US20080200640A1
    • 2008-08-21
    • US11994641
    • 2006-07-05
    • In-Sik HanJae-Young LeeSeung-Hwan LeeJae-Young KimSo-Yeon Kwon
    • In-Sik HanJae-Young LeeSeung-Hwan LeeJae-Young KimSo-Yeon Kwon
    • D01F6/60C08G69/26
    • D01F6/605D01D5/06Y02P20/582Y10T428/2913Y10T428/2969
    • Disclosed are wholly aromatic polyamide filament and a method of manufacturing the same, characterized by comprising multi-stage injection of a coagulant with sulfuric acid concentration lowered sequentially stage by stage, to a spun material fed into a coagulant injection tank. The present invention enables increase of a spinning and take-up velocity without occurrence of thread cutting by uniformly and evenly coagulating surface and inside of the spun material. In addition, the present invention recovers the coagulant or water already used and reuses the recovered coagulant or water in the earlier stages, so that it has advantages of saving production costs and reducing environmental contamination. Accordingly, the wholly aromatic polyamide filament produced according to the present invention has high crystallinity X, large apparent crystal size ACS and reduced defects in the crystal itself, thereby exhibiting more improved physical properties such as strength and modulus.
    • 公开了全芳香族聚酰胺长丝及其制造方法,其特征在于,包括多阶段将硫酸浓度逐级降低的凝结剂注入供给到凝结剂注入槽中的纺丝材料。 本发明通过使纺丝材料的表面和内部均匀均匀地凝固,能够提高纺丝和卷取速度,而不会产生螺纹切割。 此外,本发明回收已经使用的凝结剂或水,并且在早期阶段重新使用回收的凝结剂或水,从而具有节省生产成本和减少环境污染的优点。 因此,根据本发明生产的全芳族聚酰胺长丝具有高结晶度X,大的表观晶体尺寸ACS,并减少了晶体本身的缺陷,从而表现出更好的物理性能如强度和模量。
    • 60. 发明授权
    • Digital communication synchronization system and method thereof
    • 数字通信同步系统及其方法
    • US07394882B2
    • 2008-07-01
    • US10026618
    • 2001-12-27
    • Seung-Hwan LeeEung-Bae Kim
    • Seung-Hwan LeeEung-Bae Kim
    • H04L7/00
    • H04L7/0334
    • Disclosed is a synchronization system in digital communication, which comprises a converter for receiving signals from a transmitter, and oversampling a single symbol interval into a plurality of subsamples; a signal processor for classifying each symbol oversampled by the converter into a subsample group according to a sample phase, and performing signal processing to adjust processing speeds; an integrator for removing noise from the signals output by the signal processor and performing integration during a predetermined time; and a timing selector for selecting an optimal symbol synchronization point from among values output by the integrator, generating a symbol timing signal and outputting it.
    • 公开了一种数字通信中的同步系统,其包括用于从发射机接收信号的转换器,并将单个符号间隔过采样成多个子样本; 信号处理器,用于根据采样相对由转换器过采样的每个符号进行采样分组,并执行信号处理以调整处理速度; 用于从由信号处理器输出的信号中消除噪声并在预定时间内执行积分的积分器; 以及定时选择器,用于从积分器输出的值中选择最佳符号同步点,产生符号定时信号并将其输出。