公开(公告)号：US20110069670A1

公开(公告)日：2011-03-24

申请号：US12884625

申请日：2010-09-17

Applicant: Il-Gu LEE ,  Hun-Sik Kang ,  Sok-Kyu Lee

Inventor： Il-Gu LEE ,  Hun-Sik Kang ,  Sok-Kyu Lee

IPC: H04L12/413 ,  H04W4/00

CPC classification number: H04W74/0816

Abstract: A data communication method in a basic service set (BSS) of a wireless communication system using a carrier sense multiple access with collision avoidance (CSMA/CA) protocol includes: performing, by first and second nodes within the BSS, communication within a predetermined first time period; and transmitting, by a third node within the BSS, data to a fourth node within the first time period through a channel which is not used by the other nodes.

Abstract translation: 使用具有冲突避免的载波侦听多路访问（CSMA / CA）协议的无线通信系统的基本服务集（BSS）中的数据通信方法包括：由BSS内的第一和第二节点执行预定的第一 时间段; 以及由所述BSS内的第三节点通过未被其他节点使用的信道在第一时间段内向第四节点发送数据。

公开(公告)号：US20100278280A1

公开(公告)日：2010-11-04

申请号：US12805117

申请日：2010-07-13

Applicant: Hee-Jung Yu ,  Taehyun Jeon ,  Myung-Soon Kim ,  Eun-Young Choi ,  Sok-Kyu Lee ,  Deuk-Su Lyu

Inventor： Hee-Jung Yu ,  Taehyun Jeon ,  Myung-Soon Kim ,  Eun-Young Choi ,  Sok-Kyu Lee ,  Deuk-Su Lyu

IPC: H04B7/02

CPC classification number: H04W28/065 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/0618 ,  H04L5/003 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/2602 ,  H04L27/2613 ,  H04W84/12

Abstract: In the present invention, data generated from a source unit are distributed to at least one bandwidth; the data distributed to the respective bandwidths are encoded in order to perform an error correction; the encoded data are distributed to at least one antenna; a subcarrier is allocated to the data distributed to the respective antennas, and an inverse Fourier transform is performed; a short preamble and a first long preamble corresponding to the subcarrier are generated; a signal symbol is generated according to a data transmit mode; and a frame is generated by adding a second long preamble between the signal symbol and a data field for the purpose of estimating a channel of a subcarrier which is not used.

公开(公告)号：US20100266072A1

公开(公告)日：2010-10-21

申请号：US12808726

申请日：2008-06-05

Applicant: Yuro Lee ,  Jong-Ee Oh ,  Minho Cheong ,  Sok-Kyu Lee

Inventor： Yuro Lee ,  Jong-Ee Oh ,  Minho Cheong ,  Sok-Kyu Lee

IPC: H04L27/06

CPC classification number: H04L25/03318 ,  H04L25/0242 ,  H04L25/03305 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03624

Abstract: Provided is a method and apparatus for receiving a signal for a MIMO system. The receiving apparatus includes: a QR decomposer for calculating a unitary matrix Q, an upper triangle matrix R, and a vector size for a received signal; a multiple dimension detector for calculating a first LLR for an output of the QR decomposer through multiple dimension detection; an inverse matrix and weight calculator for calculating an inverse matrix for the upper triangle matrix R and a weight; an interference remover for regenerating a symbol for a demodulated data stream using the fist LLR and removing interference from an output vector of the QR decomposer using the regenerated symbol; and a weight zero forcing unit for performing zero forcing on the interference removed output vector from the interference remover using the inverse matrix of the upper triangle matrix R and the weight and calculating a second LLR.

Abstract translation: 提供了一种用于接收MIMO系统的信号的方法和装置。 接收装置包括：QR分解器，用于计算酉矩阵Q，上三角矩阵R和接收信号的向量大小; 多维度检测器，用于通过多维度检测计算QR分解器的输出的第一LLR; 用于计算上三角矩阵R和权重的逆矩阵的逆矩阵和权重计算器; 干扰去除器，用于使用第一LLR再生用于解调数据流的符号，并使用再生符号去除来自QR分解器的输出向量的干扰; 以及加权零强制单元，用于使用上三角矩阵R和权重的逆矩阵和权重对来自干扰去除器的干扰去除输出向量执行零强制并计算第二LLR。

公开(公告)号：US20100157893A1

公开(公告)日：2010-06-24

申请号：US12556091

申请日：2009-09-09

Applicant: Il-Gu LEE ,  Yun-Joo KIM ,  Hae-Young NA ,  Sok-Kyu LEE

Inventor： Il-Gu LEE ,  Yun-Joo KIM ,  Hae-Young NA ,  Sok-Kyu LEE

IPC: H04W40/00 ,  G06F11/00

CPC classification number: H04L1/0007 ,  H04L1/06

Abstract: Disclosed is an apparatus and method for transmitting data in a wireless communication system. The apparatus for transmitting a packet data in a wireless communication system includes a Media Access Control (MAC) layer for determining the number of the number of preambles to be inserted based on a feed-back reply signal from a receiver, and generating a multi-preamble aggregation packet by inserting the determined number of preambles into packets received from an upper layer and a physical layer for forming the multi-preamble aggregation packet generated in a data processing unit, by using a physical layer packet, and transmitting the formed multi-preamble aggregation packet.

Abstract translation: 公开了一种在无线通信系统中发送数据的装置和方法。 用于在无线通信系统中发送分组数据的装置包括：媒体接入控制（MAC）层，用于基于来自接收机的反馈应答信号来确定要插入的前导码数量的数量; 前导码聚合分组，通过使用物理层分组将确定数量的前导码插入到从上层接收的分组和用于形成在数据处理单元中生成的多前同步码聚合分组的物理层，以及发送所形成的多前导码 汇聚包。

公开(公告)号：US20100157832A1

公开(公告)日：2010-06-24

申请号：US12642167

申请日：2009-12-18

Applicant: Chanho Yoon ,  II-Gu Lee ,  Jung-Bo Son ,  Sok-Kyu Lee

Inventor： Chanho Yoon ,  II-Gu Lee ,  Jung-Bo Son ,  Sok-Kyu Lee

IPC: H04L12/26

CPC classification number: H04L1/0038 ,  H04L5/0007 ,  H04L27/0012 ,  H04L27/2666

Abstract: A frame format discrimination method in a wireless communication system is provided. The frame format discrimination method includes: calculating a power of an in-phase signal and a power of a quadrature signal in a predetermined section of a frame; comparing the power of the in-phase signal with the power of the quadrature signal; and determining the format of the frame in accordance with the comparison result.

Abstract translation: 提供了一种无线通信系统中的帧格式辨别方法。 帧格式识别方法包括：在帧的预定部分中计算同相信号的功率和正交信号的功率; 将同相信号的功率与正交信号的功率进行比较; 以及根据比较结果确定帧的格式。

公开(公告)号：US20100150278A1

公开(公告)日：2010-06-17

申请号：US12561076

申请日：2009-09-16

Applicant: Il-Gu Lee ,  Hyun-Gu Park ,  Je-Hun Lee ,  Sok-Kyu Lee

Inventor： Il-Gu Lee ,  Hyun-Gu Park ,  Je-Hun Lee ,  Sok-Kyu Lee

IPC: H04B1/06 ,  H04L27/06

CPC classification number: H04W52/028 ,  H04L2027/0016 ,  H04L2027/0067 ,  H04W52/0245 ,  Y02D70/142

Abstract: An apparatus for reducing power consumption of a receiver in a high-speed wireless communication system and a control method thereof are provided. The apparatus for processing a signal in a receiver of a wireless communication system includes a carrier sensor configured to sense a carrier used in the wireless communication system, a decoder configured to decode the detected carrier signal to a signal and data, and a controller configured to control supplying power and a clock only to the carrier sensor during carrier sensing, and supplying power and a clock to an overall receiver when a carrier is sensed.

Abstract translation: 提供一种用于降低高速无线通信系统中的接收机的功耗的装置及其控制方法。 用于处理无线通信系统的接收机中的信号的装置包括被配置为感测在无线通信系统中使用的载波的载波传感器，被配置为将检测到的载波信号解码为信号和数据的解码器，以及控制器， 在载波检测期间仅控制向载波传感器提供功率和时钟，并且当检测到载波时，向整个接收机提供功率和时钟。

公开(公告)号：US20100118816A1

公开(公告)日：2010-05-13

申请号：US12615813

申请日：2009-11-10

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

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

IPC: H04W72/12

CPC classification number: H04W72/1231 ,  H04L5/0023

Abstract: An apparatus for transmitting in a wireless communication system includes: a frame generating unit configured to generate a frame based on user data and to transmit the frame and frame information; a scheduling unit configured to generate a schedule of the frames to be transmitted on a frame-by-frame basis based on the frame information and to transmit the schedule; and a data matching unit configured to match the frames based on the schedule so as to transmit the frames at a time.

Abstract translation: 一种用于在无线通信系统中发送的装置，包括：帧生成单元，被配置为基于用户数据生成帧并发送帧和帧信息; 调度单元，被配置为基于所述帧信息逐帧地生成要发送的帧的调度，并发送所述调度; 以及数据匹配单元，被配置为基于所述调度来匹配所述帧，以便一次发送所述帧。

公开(公告)号：US07583620B2

公开(公告)日：2009-09-01

申请号：US10855274

申请日：2004-05-26

Applicant: Taehyun Jeon ,  Sok-Kyu Lee

Inventor： Taehyun Jeon ,  Sok-Kyu Lee

IPC: H04B1/44 ,  H04J3/16 ,  H04J3/22 ,  H04B1/00 ,  H04B7/00

CPC classification number: H04L1/0003 ,  H04W52/04 ,  H04W52/241

Abstract: Disclosed is a link margin adaptation method using feedback information of a wireless communication system. For transmission and reception of data between two nodes of the wireless communication system, a transmission node requests a receiving node to transmit a link margin. The transmission node receives the link margin, and selects one of a white noise table or a delay spread table according to a delay spread value between the two nodes. Then, the transmission node adapts a link between the two nodes to a transmission mode and decides a transmission rate to transmit data at the decided transmission rate, thereby improving transmission capacity of the wireless communication system, obtaining the optimum link state, extending power utilization time of stations, and reducing interference between stations.

Abstract translation: 公开了一种使用无线通信系统的反馈信息的链路余量调整方法。 为了在无线通信系统的两个节点之间发送和接收数据，传输节点请求接收节点发送链路余量。 发送节点接收链路余量，根据两个节点之间的延迟扩展值，选择白噪声表或延迟扩展表之一。 然后，传输节点将两个节点之间的链路适配为传输模式，并决定传输速率以确定的传输速率传输数据，从而提高无线通信系统的传输容量，获得最佳链路状态，延长电源利用时间 的站点，并减少站点之间的干扰。

公开(公告)号：US07577168B2

公开(公告)日：2009-08-18

申请号：US11198598

申请日：2005-08-04

Applicant: Taehyun Jeon ,  Heejung Yu ,  Myung-Soon Kim ,  Eun-Young Choi ,  Sok-Kyu Lee ,  Deuk-Su Lyu

Inventor： Taehyun Jeon ,  Heejung Yu ,  Myung-Soon Kim ,  Eun-Young Choi ,  Sok-Kyu Lee ,  Deuk-Su Lyu

IPC: H04J3/06

CPC classification number: H04L27/2662 ,  H04L27/2675

Abstract: An apparatus for detecting symbol synchronization in a received signal including a first preamble and a second preamble which is consecutive to the first preamble, the apparatus including a first correlator calculating a first correlation value between the received signal and a first pattern of a first period among iterative patterns of the first preamble, a second correlator calculating a second correlation value between the received signal and a second pattern of a second period among iterative patterns of the second preamble, a third correlator calculating a third correlation value between the first correlation value and the second correlation value, and a detector detecting symbol synchronization from the third correlation value.

Abstract translation: 一种用于检测包括与第一前导码连续的第一前导码和第二前同步码的接收信号中符号同步的装置，该装置包括：第一相关器，用于计算接收信号与第一周期中的第一相似值之间的第一相关值， 所述第一前导码的迭代模式，第二相关器，计算所述接收信号与所述第二前导码的迭代模式之间的第二周期的第二模式之间的第二相关值;第三相关器，计算所述第一相关值与所述第一相关值之间的第三相关值， 第二相关值，以及检测器，从第三相关值检测符号同步。

公开(公告)号：US20090154608A1

公开(公告)日：2009-06-18

申请号：US12177655

申请日：2008-07-22

Applicant: Chanho YOON ,  II-Gu LEE ,  Jung-Bo SON ,  Eun-Young CHOI ,  Yu-Ro LEE ,  Sok-Kyu LEE

Inventor： Chanho YOON ,  II-Gu LEE ,  Jung-Bo SON ,  Eun-Young CHOI ,  Yu-Ro LEE ,  Sok-Kyu LEE

IPC: H04L27/14

CPC classification number: H04B7/0851 ,  H04B7/0669 ,  H04L1/0048 ,  H04L1/0631 ,  H04L25/067 ,  H04L27/2601

Abstract: Provided are a receiving apparatus for a multiple input multiple output (MIMO) system and a method thereof. The receiving apparatus includes a QR decomposing unit for calculating a single (Q) matrix vector and an upper triangle (R) matrix vector for a receiving signal vector; a first symbol estimation unit for estimating predetermined symbols using the calculated Q matrix vector and R matrix vector; a log likelihood ratio (LLR) calculating unit for calculating log likelihood ratios of unit bits for the estimated symbols; an interference removing unit for receiving a decoded signal that is decided using the calculated log likelihood ratios and removing interference from the receiving signal vector; and a second symbol estimation unit for linearly estimating remaining symbols for the interference removed signal.

Abstract translation: 提供了一种用于多输入多输出（MIMO）系统的接收装置及其方法。 接收装置包括用于计算接收信号矢量的单（Q）矩阵向量和上三角（R）矩阵向量的QR分解单元; 第一符号估计单元，用于使用所计算的Q矩阵向量和R矩阵向量来估计预定符号; 对数似然比（LLR）计算单元，用于计算估计符号的单位比特的对数似然比; 干扰去除单元，用于接收使用计算的对数似然比决定的解码信号，并从接收信号矢量中去除干扰; 以及用于线性估计用于干扰去除信号的剩余符号的第二符号估计单元。