公开(公告)号：US20090141679A1

公开(公告)日：2009-06-04

申请号：US12129897

申请日：2008-05-30

Applicant: Yoo-Seung SONG ,  Jee-Yon CHOI ,  Hyun-Gu PARK ,  Yun-Joo KIM ,  Kyoung-Hee SONG ,  Sok-Kyu LEE

Inventor： Yoo-Seung SONG ,  Jee-Yon CHOI ,  Hyun-Gu PARK ,  Yun-Joo KIM ,  Kyoung-Hee SONG ,  Sok-Kyu LEE

IPC: H04Q7/00

CPC classification number: H04B7/2656 ,  H04W99/00

Abstract: A method for forming a frame in a wireless communication system is provided. In the method, a plurality of preamble symbols are disposed. Then, a signal symbol is disposed at a predetermined position among the plurality of preamble symbols. At least one of data symbols is disposed after the plurality of preamble symbols.

Abstract translation: 提供了一种在无线通信系统中形成帧的方法。 在该方法中，设置多个前导符号。 然后，信号符号被布置在多个前导码符号之间的预定位置处。 在多个前导码符号之后设置至少一个数据符号。

公开(公告)号：US07519022B2

公开(公告)日：2009-04-14

申请号：US10853890

申请日：2004-05-25

Applicant: Hee-Jung Yu ,  Hee-Soo Lee ,  Sok-Kyu Lee

Inventor： Hee-Jung Yu ,  Hee-Soo Lee ,  Sok-Kyu Lee

IPC: H04W4/00

CPC classification number: H04L1/0656 ,  H04B7/0678 ,  H04B7/086

Abstract: A spatial multiplexing detection device using a MIMO technology comprises a MIMO detector for detecting receive symbols which correspond to symbols transmitted through transmit antennas from receive signals when the transmit data transmitted by the terminal group are received through receive antennas; a terminal identifier for identifying the receive symbols detected by the MIMO detector into symbols which correspond to respective terminals in the terminal group; a symbol demapper for demapping the receive symbols identified by the terminal identifier to binary data which correspond to a modulation method used by the terminal group; and a reverse data processor for performing deinterleaving, decoding of error correction codes, and descrambling on the binary data demapped by the symbol demapper, and detecting receive data of the respective terminals.

Abstract translation: 使用MIMO技术的空间复用检测装置包括MIMO检测器，用于当通过接收天线接收到由终端组发送的发送数据时，从接收信号检测对应于通过发送天线发送的符号的接收符号; 用于将由MIMO检测器检测到的接收符号识别为对应于终端组中的各个终端的符号的终端标识符; 符号解映射器，用于将由终端标识符识别的接收符号解映射成对应于由终端组使用的调制方法的二进制数据; 以及反向数据处理器，用于执行对符号解映射器解映射的二进制数据的解交织，纠错码的解码和解扰，以及检测各个终端的接收数据。

公开(公告)号：US07460466B2

公开(公告)日：2008-12-02

申请号：US10539166

申请日：2003-06-02

Applicant: Sok-Kyu Lee ,  Kwang-Soon Kim ,  Kyung-Hi Chang

Inventor： Sok-Kyu Lee ,  Kwang-Soon Kim ,  Kyung-Hi Chang

IPC: H04Q7/00

CPC classification number: H04J11/0026 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/0046 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/006 ,  H04L5/0085 ,  H04L5/06 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/2602

Abstract: Disclosed are an adaptive pilot symbol assignment method that flexibly controls the number of transmit antennas according to each user's moving speed, channel status, or user request, and assigns proper pilot symbols in the downlink of an OFDMA (Orthogonal Frequency Division Multiplexing Access) based cellular system; and a sub-carrier allocation method for high-speed mobile that allocates some sub-carriers to assign proper pilot symbols for ultrahigh-speed mobile users, and the rest of the sub-carriers to the other users to assign proper pilot symbols to the users, on the assumption that the ultrahigh-speed mobile users have a traffic volume almost insignificant to the whole traffic volume.

Abstract translation: 公开了一种根据每个用户的移动速度，信道状态或用户请求灵活地控制发射天线数量的自适应导频符号分配方法，并且在基于OFDMA（正交频分复用接入）的蜂窝小区的下行链路中分配适当的导频符号 系统; 以及用于高速移动的子载波分配方法，其分配一些子载波以为超高速移动用户分配适当的导频符号，并且将剩余的子载波分配给其他用户以向用户分配适当的导频符号 假设超高速移动用户的流量对整个流量几乎无关紧要。

公开(公告)号：US07321582B2

公开(公告)日：2008-01-22

申请号：US10897160

申请日：2004-07-21

Applicant: Woo-Yong Choi ,  Sok-Kyu Lee

Inventor： Woo-Yong Choi ,  Sok-Kyu Lee

IPC: H04B7/212

CPC classification number: H04L1/1874 ,  H04L1/0001 ,  H04L1/16 ,  H04W74/0808 ,  H04W84/12

Abstract: Disclosed is an algorithm for dynamically changing an RTS threshold, which is a threshold for RTS-CTS frame exchange, depending on the traffic load in the BSS so as to maximize the MAC throughput of an IEEE 802.11 wireless LAN system. The present invention defines a new performance index based on the total time taken to transmit a frame and the time taken to successfully transmit a data frame. The RTS threshold is dynamically increased/decreased in a predefined range depending on the change in the new performance index.

Abstract translation: 公开了根据BSS中的业务负载来动态地改变作为RTS-CTS帧交换的阈值的RTS阈值的算法，以便使IEEE 802.11无线LAN系统的MAC吞吐量最大化。 本发明基于传送帧所需的总时间和成功发送数据帧所花费的时间来定义新的性能指标。 取决于新性能指标的变化，RTS阈值在预定义范围内动态增加/减少。

公开(公告)号：US20070165564A1

公开(公告)日：2007-07-19

申请号：US10584639

申请日：2004-12-27

Applicant: Woo-Yong Lee ,  Sok-Kyu Lee

Inventor： Woo-Yong Lee ,  Sok-Kyu Lee

IPC: H04Q7/00

CPC classification number: H04L5/006 ,  H04L5/0007 ,  H04L5/0046

Abstract: Disclosed is an adaptive resource allocation processor in the multi-channel communication system. A channel gain for the subchannel is determined and a modulation method for each subchannel is the present invention. A number of bits to be transmitted is determine according to a subchannel quality, and a minimum power for a total required transmission rate is determined. A channel gain for the subchannel is determined according to the number of allocated bits and power, an, a modulation method for each subchannel is determined with reference o the channel gain. When the modulation method for each subchannel is determined, an adaptive convex search is repeatedly performed according to the average power and transmission rate, and a final modulation method is determined as one subchannel unit with reference the convex search result.

Abstract translation: 公开了多通道通信系统中的自适应资源分配处理器。 确定子信道的信道增益，并且每个子信道的调制方法是本发明。 根据子信道质量确定要发送的比特数，并且确定总需要传输速率的最小功率。 根据分配的比特数和功率确定子信道的信道增益，a，参考o信道增益确定每个子信道的调制方法。 当确定每个子信道的调制方法时，根据平均功率和传输速率重复执行自适应凸搜索，并且参考凸搜索结果将最终调制方法确定为一个子信道单元。

公开(公告)号：US20070147336A1

公开(公告)日：2007-06-28

申请号：US10584335

申请日：2004-12-27

Applicant: Woo-Yong Lee ,  Sok-Kyu Lee

Inventor： Woo-Yong Lee ,  Sok-Kyu Lee

IPC: H04J3/06

CPC classification number: H04L27/2656 ,  H04L7/10 ,  H04L25/0202 ,  H04L25/0226 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2628 ,  H04L27/2662 ,  H04L27/2663 ,  H04W56/001 ,  H04W84/12

Abstract: A method of configuring a preamble of a downlink frame for synchronization in data frame transmission of a 60 GHz a wireless local area network system, the method comprising arranging a short preamble having a plurality of repetitive S symbols, and an IS symbol, and arranging a long preamble having a long cyclic prefix (CP) and a plurality of L symbols for frame synchronization and symbol timing by performing auto-correlation according to the length of window of the auto-correlation.

Abstract translation: 一种在60GHz的无线局域网系统的数据帧发送中配置用于同步的下行链路帧的前导码的方法，所述方法包括：配置具有多个重复S符号的短前导码和IS符号，并且将 具有长循环前缀（CP）的长前导码和用于帧同步和符号定时的多个L个符号，通过根据自相关的窗口的长度执行自相关。

公开(公告)号：US20070135071A1

公开(公告)日：2007-06-14

申请号：US11636201

申请日：2006-12-08

Applicant: Il-Gu Lee ,  Sok-Kyu Lee ,  Hee-jung Yu ,  Eun-Young Choi ,  Chan-Ho Yoon ,  Jung-Bo Son ,  Deuk-Su Lyu ,  Seung-Wook Min ,  Tae-hyun Jeon ,  Seung-Chan Bang ,  Seung-Ku Hwang

Inventor： Il-Gu Lee ,  Sok-Kyu Lee ,  Hee-jung Yu ,  Eun-Young Choi ,  Chan-Ho Yoon ,  Jung-Bo Son ,  Deuk-Su Lyu ,  Seung-Wook Min ,  Tae-hyun Jeon ,  Seung-Chan Bang ,  Seung-Ku Hwang

IPC: H04B1/06 ,  H04B7/00

CPC classification number: H04W52/52

Abstract: An exemplary automatic gain control device includes: a radio frequency receiver for receiving a plurality of first signals through a plurality of antennas, respectively controlling gains of the plurality of first received signals, and outputting the plurality of the first signals having the controlled gain as a plurality of second signals; a signal saturation detecting unit for outputting a saturation index determination value when the number of plurality of second signals that are greater than a threshold value is greater than a predetermined number; and a gain controlling unit for comparing power values of the plurality of second signals to detect one power value, and outputting a gain value determined based on a detected power value and a saturation index determination value to the radio frequency receiver.

Abstract translation: 示例性的自动增益控制装置包括：射频接收器，用于通过多个天线接收多个第一信号，分别控制多个第一接收信号的增益，并将具有受控增益的多个第一信号作为 多个第二信号; 信号饱和检测单元，当大于阈值的多个第二信号的数量大于预定数量时，输出饱和度指标确定值; 以及增益控制单元，用于对所述多个第二信号的功率值进行比较，以检测一个功率值，并将基于检测到的功率值和饱和度指标确定值确定的增益值输出到所述射频接收器。

公开(公告)号：US07110296B2

公开(公告)日：2006-09-19

申请号：US10878093

申请日：2004-06-28

Applicant: Sok Kyu Lee

Inventor： Sok Kyu Lee

IPC: G11C16/04

CPC classification number: G11C16/0483

Abstract: Provided is related to a flash memory device, comprising an input receiver to input data, a data selector for generating a plurality of control signals in accordance with recognizing whether the input data in the data receiver is either the data to be programmed or the data to be erased, a data load path being enabled for data to be programmed while disabled for data to be erased, in response to the control signal, and a page buffer for storing the input data from the data load path. The present invention improves a data loading speed and enhances power consumption property by reducing current dissipation.

Abstract translation: 本发明涉及一种闪速存储器件，其包括输入接收器以输入数据，数据选择器，用于根据识别数据接收器中的输入数据是要被编程的数据还是将要被编程的数据转换为数据，产生多个控制信号 被擦除，响应于控制信号，数据加载路径被允许被编程为禁止数据被擦除的数据;以及页缓冲器，用于存储来自数据加载路径的输入数据。 本发明通过减少电流消耗来提高数据加载速度并提高功耗特性。

公开(公告)号：US20060133616A1

公开(公告)日：2006-06-22

申请号：US11289181

申请日：2005-11-28

Applicant: Yun-Joo Kim ,  Doo-Hyun Bae ,  Gwan-Yeon Kim ,  Se-Hyun Park ,  Sok-Kyu Lee

Inventor： Yun-Joo Kim ,  Doo-Hyun Bae ,  Gwan-Yeon Kim ,  Se-Hyun Park ,  Sok-Kyu Lee

IPC: H04L9/00

CPC classification number: H04L63/0435 ,  H04L9/065 ,  H04L2209/12 ,  H04L2209/80

Abstract: An encryption/decryption device and a method thereof use an RC4 algorithm to reduce a waiting time for encryption/decryption thereby avoiding data process delay. The encryption/decryption device includes a management unit, an encryption/decryption unit, and a first interface. The management unit includes a WEP seed key generator for generating a WEP seed key based on a transmitter address of first data and a cipher suite value representing a cipher protocol type for the transmitter address, an RC4 key scheduler for generating S-Box data using the WEP seed key, and an S-Box data memory storing the S-Box data generated from the RC4 key scheduler for the transmitter addresses. The encryption/decryption unit has a core for performing the RC4 algorithm-corresponding to the cipher suite, encrypting/decrypting the first data using the S-Box data transmitted from the management unit, and transmitting a signal for generating the S-Box data of second data to the management unit. The first interface transmits a control signal and a data signal between the management unit and the encryption/decryption unit.

Abstract translation: 加密/解密装置及其方法使用RC4算法来减少加密/解密的等待时间，从而避免数据处理延迟。 加密/解密装置包括管理单元，加密/解密单元和第一接口。 管理单元包括：WEP种子密钥发生器，用于基于第一数据的发射机地址和表示发射机地址的密码协议类型的密码组值产生WEP种子密钥; RC4密钥调度器，用于使用 WEP种子密钥和存储从用于发射机地址的RC4密钥调度器生成的S-Box数据的S-Box数据存储器。 加密/解密单元具有用于执行对应于加密套件的RC4算法的核心，使用从管理单元发送的S-Box数据对第一数据进行加密/解密，并且发送用于生成S-Box数据的信号 第二个数据到管理单元。 第一接口在管理单元和加密/解密单元之间发送控制信号和数据信号。

公开(公告)号：US20060029028A1

公开(公告)日：2006-02-09

申请号：US11138197

申请日：2005-05-25

Applicant: Yun-Joo Kim ,  Sok-Kyu Lee

Inventor： Yun-Joo Kim ,  Sok-Kyu Lee

IPC: H04Q7/24

CPC classification number: H04W84/12

Abstract: The present invention relates to a wireless local area network (WLAN). In the present invention, an access point transmits and receives a probe frame including identity numbers of each access point with a near access point, determines a master access point, and establishes a connection with a near access point through a first radio channel. The master access point transmits a beacon frame, including time information, to a station through a second radio channel, and establishes a connection with the station. The master access point relays a wired internet service received from internet network to the station. Thereafter the master access point switches the connection to the first radio channel and transmits a data frame to the near access point connected with a target station.

Abstract translation: 无线局域网（WLAN）技术领域本发明涉及无线局域网（WLAN）。 在本发明中，接入点通过接近点接收包含每个接入点的身份号的探测帧，确定主接入点，​​并通过第一无线信道建立与接近接入点的连接。 主接入点通过第二无线电信道将包括时间信息的信标帧发送到站，并建立与该站的连接。 主接入点将从互联网接收的有线互联网服务中继到车站。 此后，主接入点将连接切换到第一无线电信道，并将数据帧发送到与目标站连接的近地点。