公开(公告)号：US20110206156A1

公开(公告)日：2011-08-25

申请号：US13033202

申请日：2011-02-23

申请人： Il-Gu LEE ,  In-Kyeong CHOI ,  Yu-Ro LEE ,  Jong-Ee OH ,  Eun-Young CHOI ,  Sok-Kyu LEE

发明人： Il-Gu LEE ,  In-Kyeong CHOI ,  Yu-Ro LEE ,  Jong-Ee OH ,  Eun-Young CHOI ,  Sok-Kyu LEE

IPC分类号： H04L27/18

CPC分类号： H04L27/18 ,  H04L27/0008

摘要： A method for transmitting, by a transmitting terminal, data to a receiving terminal in a wireless communication system includes: generating a first detection field including symbols modulated by using a BPSK data tone; generating a second detection field including symbols modulated such that an even numbered subcarrier and an odd numbered subcarrier have a phase difference of 90 degrees; generating a data packet including the first detection field, the second detection field, and the data; and transmitting the data packet.

摘要翻译： 一种在无线通信系统中由发送终端向接收终端发送数据的方法包括：生成包括通过使用BPSK数据音调调制的符号的第一检测字段; 产生包括被调制的符号的第二检测场，使得偶数副载波和奇数副载波具有90度的相位差; 生成包括第一检测区域，第二检测区域和数据的数据分组; 并发送数据包。

公开(公告)号：US20120294296A1

公开(公告)日：2012-11-22

申请号：US13491941

申请日：2012-06-08

申请人： Woo-Yong LEE ,  Sok-Kyu LEE

发明人： Woo-Yong LEE ,  Sok-Kyu LEE

IPC分类号： H04J3/06 ,  H04W84/12

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

摘要： 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.

摘要翻译： 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：US20100151898A1

公开(公告)日：2010-06-17

申请号：US12635555

申请日：2009-12-10

申请人： Ilgu LEE ,  Hun-Sik KANG ,  Sok-Kyu LEE

发明人： Ilgu LEE ,  Hun-Sik KANG ,  Sok-Kyu LEE

IPC分类号： H04B7/005 ,  H04B1/04 ,  H04B1/06

CPC分类号： H04B7/0608 ,  H04B1/18 ,  H04B2001/0416

摘要： A transmitter/receiver for a wireless communication system is provided. The transmitter for a wireless communication system includes: an external amplifier connected to a next stage of a power amplifier amplifying a signal to be transmitted to a required power level; a transmission selector configured to directly output the signal amplified by the power amplifier to an antenna or control the external amplifier to amplify the signal, based on a mode control signal; and a mode selector configured to compare a power level of a signal provided from a receiver with a predetermined power level to generate the mode control signal for determining whether or not to operate the external amplifier.

摘要翻译： 提供了一种用于无线通信系统的发射机/接收机。 用于无线通信系统的发射机包括：外部放大器，连接到功率放大器的下一级，放大要发射的信号至所需功率电平; 发送选择器，被配置为基于模式控制信号将由功率放大器放大的信号直接输出到天线或控制外部放大器以放大信号; 以及模式选择器，被配置为将从接收机提供的信号的功率电平与预定功率电平进行比较，以产生用于确定是否操作外部放大器的模式控制信号。

公开(公告)号：US20090190686A1

公开(公告)日：2009-07-30

申请号：US12332001

申请日：2008-12-10

申请人： Minho CHEONG ,  Sok-Kyu LEE ,  Seung-Chan BANG ,  II-Gu LEE

发明人： Minho CHEONG ,  Sok-Kyu LEE ,  Seung-Chan BANG ,  II-Gu LEE

IPC分类号： H04B7/02

CPC分类号： H04B7/0413 ,  H04B7/0613 ,  H04B7/0684 ,  H04B7/0854

摘要： Provided are a preamble structure and a channel estimation algorithm thereof. A communication method for a transmitter for channel estimation in a Multiple Input Multiple Output (MIMO) wireless communication system having N receiving antennas, includes generating a preamble interval having a short training field that includes a predetermined pattern iterated N times on a time domain and is used for compensating for a carrier frequency offset, and transmitting a packet having the preamble interval.

摘要翻译： 提供了前导码结构及其信道估计算法。 一种用于具有N个接收天线的多输入多输出（MIMO）无线通信系统中用于信道估计的发射机的通信方法，包括生成具有短训练场的前同步码间隔，该训练场包括在时域上迭代N次的预定模式，并且是 用于补偿载波频率偏移，以及发送具有前导码间隔的分组。

公开(公告)号：US20120163220A1

公开(公告)日：2012-06-28

申请号：US13336847

申请日：2011-12-23

申请人： Jaewoo PARK ,  Sok-Kyu LEE

发明人： Jaewoo PARK ,  Sok-Kyu LEE

IPC分类号： H04W4/06 ,  H04W24/00

CPC分类号： H04W28/08 ,  H04W8/186

摘要： An apparatus for transmitting data in a communication system includes: a receiver configured to receive signals from a plurality of terminals in a multiuser-multi-input multi-output (MU-MIMO) scheme; an assignor configured to assign group IDs to terminal groups, respectively after identifying the plurality of terminals and grouping the plurality of terminals into the terminal groups; a generator configured to define a load element which indicates a resource and load state of a basic service set (BSS) through the group IDs and to generate a beacon frame including the load element; and a transmitter configured to transmit the beacon frame to the plurality of terminals in the MU-MIMO scheme.

摘要翻译： 一种在通信系统中发送数据的装置，包括：接收机，被配置为在多用户多输入多输出（MU-MIMO）方案中从多个终端接收信号; 分配器，被配置为在识别所述多​​个终端并将所述多个终端分组为所述终端组之后，分别将组ID分配给终端组; 配置为通过组ID定义指示基本服务集（BSS）的资源和负载状态的负载元素并生成包括所述负载元素的信标帧的发生器; 以及发射机，被配置为在所述MU-MIMO方案中将所述信标帧发射到所述多个终端。

公开(公告)号：US20100118816A1

公开(公告)日：2010-05-13

申请号：US12615813

申请日：2009-11-10

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

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

IPC分类号： H04W72/12

CPC分类号： H04W72/1231 ,  H04L5/0023

摘要： 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.

摘要翻译： 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：US20090154608A1

公开(公告)日：2009-06-18

申请号：US12177655

申请日：2008-07-22

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

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

IPC分类号： H04L27/14

CPC分类号： H04B7/0851 ,  H04B7/0669 ,  H04L1/0048 ,  H04L1/0631 ,  H04L25/067 ,  H04L27/2601

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20090141679A1

公开(公告)日：2009-06-04

申请号：US12129897

申请日：2008-05-30

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

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

IPC分类号： H04Q7/00

CPC分类号： H04B7/2656 ,  H04W99/00

摘要： 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.

摘要翻译： 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：US20120188925A1

公开(公告)日：2012-07-26

申请号：US13336859

申请日：2011-12-23

申请人： Jae-Seung LEE ,  Sok-Kyu LEE

发明人： Jae-Seung LEE ,  Sok-Kyu LEE

IPC分类号： H04W52/02

CPC分类号： H04B7/0452 ,  H04W28/14 ,  H04W52/0216 ,  H04W52/0235 ,  Y02D70/142 ,  Y02D70/23 ,  Y02D70/444

摘要： Disclosed are an apparatus and a method for transmitting/receiving data while providing power saving efficiency of a terminal, for example, a station (hereinafter, referred to as ‘STAS) in a communication system providing services to multi users in a multi-input multi-output (hereinafter, referred to as ‘MIMO’) scheme. The apparatus for transmitting data includes: a receiving unit configured to receive an uplink frame from a plurality of terminals by a multi user-multiple-input multiple-output (MIMO) scheme; a generating unit configured to generate a packet including support information on a multi user-power saving scheme with the terminals; a buffering unit configured to buffer data corresponding to the terminals; and a transmitting unit configured to transmit a downlink frame including the generated packet and the buffered data to the terminals by the multi user-MIMO scheme.

摘要翻译： 公开了一种用于发送/接收数据的装置和方法，同时提供终端的节电效率，例如在多输入多用户中为多用户提供服务的通信系统中的站（以下称为“STAS”） 输出（以下称为“MIMO”）方案。 用于发送数据的装置包括：接收单元，被配置为通过多用户多输入多输出（MIMO）方案从多个终端接收上行链路帧; 生成单元，其被配置为生成包括与所述终端的多用户节能方案的支持信息的分组; 缓冲单元，被配置为缓冲对应于所述终端的数据; 以及发送单元，被配置为通过所述多用户MIMO方案向所述终端发送包括所生成的分组和所述缓冲数据的下行链路帧。

公开(公告)号：US20120163216A1

公开(公告)日：2012-06-28

申请号：US13333907

申请日：2011-12-21

申请人： Hyun-Gu PARK ,  Sok-Kyu LEE

发明人： Hyun-Gu PARK ,  Sok-Kyu LEE

IPC分类号： H04W24/00 ,  H04L12/26

CPC分类号： H04W74/085

摘要： Disclosed is a media access control apparatus and method in a wireless local area network (LAN) system, which improves the performance of a wireless network by obtaining a transmission opportunity based on information on a station (STA), received from an access point (AP) in a contention-based distributed media access control system such as an IEEE 802.11 wireless LAN system. In the media access control apparatus and method, a station determines a contention window (CW) value based on information on other stations accessing a same access point and information on the idle state of a channel, so that an inefficient CW value is be set in a Distributed Coordination Function (DCF) used in the IEEE 802.11. Accordingly, it is possible to increase the processing speed of the station and to the efficiency of a wireless LAN network.

摘要翻译： 公开了一种无线局域网（LAN）系统中的媒体接入控制装置和方法，其通过基于从接入点（AP）接收的关于站（STA）的信息获得发送机会来提高无线网络的性能 ）在诸如IEEE 802.11无线LAN系统的基于竞争的分布式媒体访问控制系统中。 在媒体访问控制装置和方法中，站基于访问相同接入点的其他站的信息和信道的空闲状态的信息来确定竞争窗口（CW）值，从而将低效CW值设置在 在IEEE 802.11中使用的分布式协调功能（DCF）。 因此，可以提高站的处理速度和无线LAN网络的效率。