公开(公告)号：US20120230242A1

公开(公告)日：2012-09-13

申请号：US13478069

申请日：2012-05-22

申请人： Yun-Joo Kim ,  Jae-Seung Lee ,  Sok-Kyu Lee

发明人： Yun-Joo Kim ,  Jae-Seung Lee ,  Sok-Kyu Lee

IPC分类号： H04W4/06

CPC分类号： H04B7/0452 ,  H04W4/08 ,  H04W8/186 ,  H04W84/12

摘要： The present invention relates to methods for transmitting a frame by grouping a plurality of wireless terminals in a multiuser based wireless communication system. The present invention includes a method for transmitting a frame by including information about multiple receiver terminals in a MAC frame, another method for transmitting a frame by allocating group addresses and then using a corresponding group address for frame transmission, and yet another method for transmitting a frame by using a unique group sequence number that is allocated to each group and group control information that contains bitmap information. The group control information is included in a destination address field of a MAC layer, or in a signal field of a physical layer, or in both the MAC layer and the physical layer.

摘要翻译： 本发明涉及通过在多用户无线通信系统中对多个无线终端进行分组来发送帧的方法。 本发明包括一种通过在MAC帧中包含关于多个接收机终端的信息来发送帧的方法，用于通过分配组地址然后使用相应的组地址进行帧传输来发送帧的另一种方法，以及另一种用于发送帧 帧，通过使用分配给每个组的唯一组序列号和包含位图信息的组控制信息。 组控制信息包括在MAC层的目的地地址字段中，或者在物理层的信号字段中，或MAC层和物理层中。

公开(公告)号：US20120213305A1

公开(公告)日：2012-08-23

申请号：US13434681

申请日：2012-03-29

申请人： Jong-Ee OH ,  Minho Cheong ,  Sok-Kyu Lee

发明人： Jong-Ee OH ,  Minho Cheong ,  Sok-Kyu Lee

IPC分类号： H04B7/02

CPC分类号： H04B7/0452 ,  H04B7/0413 ,  H04L1/0083 ,  H04L1/0643 ,  H04L1/08 ,  H04L5/0007 ,  H04L5/003 ,  H04W28/06 ,  H04W84/12

摘要： The present invention relates to a method and apparatus for transmitting and receiving data. A data transmission method from a sender terminal to a receiver terminal in a MIMO system using a variable frequency band according to one embodiment of the present invention comprises: repeatedly generating a signal field depending on a frequency band that is applied to the transmission of a data frame; generating a data field including the data; generating a data frame including the signal field and the data field; and transmitting the data frame to the receiver terminal. The present invention is advantageous in that a signal field which is transmitted together with the data being transmitted from the sender terminal to the receiver terminal in the MIMO system can be sent more efficiently.

摘要翻译： 本发明涉及用于发送和接收数据的方法和装置。 根据本发明的一个实施例的使用可变频带的MIMO系统中的从发送者终端到接收终端的数据传输方法包括：根据应用于数据传输的频带重复产生信号场 帧; 生成包括数据的数据字段; 生成包括信号字段和数据字段的数据帧; 并将数据帧发送到接收机终端。 本发明的优点在于，能够更有效地发送与MIMO系统中的发送方终端发送到接收终端的数据一起发送的信号场。

公开(公告)号：US20120195301A1

公开(公告)日：2012-08-02

申请号：US13443509

申请日：2012-04-10

申请人： Jeeyon CHOI ,  Jaewoo Park ,  Sok-Kyu Lee

发明人： Jeeyon CHOI ,  Jaewoo Park ,  Sok-Kyu Lee

IPC分类号： H04L12/02 ,  H04W4/00 ,  H04W84/12

CPC分类号： H04W72/044 ,  H04B7/2656 ,  H04L1/0083 ,  H04L29/06068 ,  H04L69/08 ,  H04L69/22 ,  H04L69/324

摘要： The present invention relates to a technique relating to a method and apparatus for generating, transmitting, and receiving a data frame having a newly proposed format in a wireless communication system. According to the technique, the method for generating a data frame in a wireless communication system comprises the following steps: generating at least one first subframe; generating at least one second subframe; and generating a data frame including the first and second subframes, wherein the first and second subframes include length information of a MAC protocol data unit (MPDU) contained in the first and second subframes, and the length information of the MPDU contained in the second subframe is zero.

摘要翻译： 本发明涉及一种与在无线通信系统中生成，发送和接收具有新提出的格式的数据帧的方法和装置相关的技术。 根据该技术，在无线通信系统中生成数据帧的方法包括以下步骤：生成至少一个第一子帧; 产生至少一个第二子帧; 以及生成包括第一和第二子帧的数据帧，其中第一和第二子帧包括第一和第二子帧中包含的MAC协议数据单元（MPDU）的长度信息，以及包含在第二子帧中的MPDU的长度信息 是零。

公开(公告)号：US08218427B2

公开(公告)日：2012-07-10

申请号：US10584335

申请日：2004-12-27

申请人： Woo-Yong Lee ,  Sok-Kyu Lee

发明人： Woo-Yong Lee ,  Sok-Kyu Lee

IPC分类号： H04L5/12 ,  H04J3/06

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：US20110274065A1

公开(公告)日：2011-11-10

申请号：US13104630

申请日：2011-05-10

申请人： Jong-Ee Oh ,  Sok-Kyu Lee

发明人： Jong-Ee Oh ,  Sok-Kyu Lee

IPC分类号： H04W72/04

CPC分类号： H04W72/121 ,  H04W8/26 ,  H04W72/0453

摘要： Provided is a method for transmitting data frames to multiple STAs in a wireless communication system which divides a frequency band into frequency band segments to allocate. The method includes: setting a group by grouping a plurality of STAs; determining whether or not to separately allocate the frequency band segments to the STAs within the group; constructing a control frame containing a segment field, based on the determination result; and transmitting the constructed control frame through a common signal, and transmitting data frames.

摘要翻译： 提供了一种在将频带划分成频带段以分配的无线通信系统中将数据帧发送到多个STA的方法。 该方法包括：通过分组多个STA来设置组; 确定是否将所述频带段分别分配给所述组内的STA; 基于确定结果构建包含段字段的控制帧; 并通过公共信号发送构成的控制帧，并发送数据帧。

公开(公告)号：US20110255488A1

公开(公告)日：2011-10-20

申请号：US13035105

申请日：2011-02-25

申请人： Yu-Ro LEE ,  Sok-Kyu Lee

发明人： Yu-Ro LEE ,  Sok-Kyu Lee

IPC分类号： H04W72/04

CPC分类号： H04L5/0048 ,  H04L5/0023 ,  H04L25/0226 ,  H04L25/0228 ,  H04W24/00 ,  H04W28/06

摘要： An apparatus of transmitting a long training field includes: a station number determination unit configured to determine at least one station to be transmitted using transmission data or channel status information; a transmission stream allocation unit configured to determine the number of transmission streams for each of the least one station determined by the station number determination unit; a long training field number calculation unit configured to calculate the number of long training fields required for each of the at least one station determined by the transmission stream allocation unit and determines the least common multiple of the number of calculated long training fields of each station; and a long training field allocation unit configured to allocate the long training fields for each station to subcarriers allocated to each station to correspond to the least common multiple of the determined long training fields.

摘要翻译： 发送长训练场的装置包括：站号确定单元，被配置为使用发送数据或信道状态信息确定要发送的至少一个站; 发送流分配单元，被配置为确定由所述站号确定单元确定的所述至少一个站中的每一个的传输流的数量; 长训练场号计算单元，被配置为计算由所述传输流分配单元确定的所述至少一个站中的每一个所需的长训练场的数量，并确定每个站的计算的长训练场数的最小公倍数; 以及长训练场分配单元，被配置为将每个站的长训练场分配给分配给每个站的子载波以对应于所确定的长训练场的最小公倍数。

公开(公告)号：US20100266072A1

公开(公告)日：2010-10-21

申请号：US12808726

申请日：2008-06-05

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

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

IPC分类号： H04L27/06

CPC分类号： H04L25/03318 ,  H04L25/0242 ,  H04L25/03305 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03624

摘要： 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.

摘要翻译： 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：US07583620B2

公开(公告)日：2009-09-01

申请号：US10855274

申请日：2004-05-26

申请人： Taehyun Jeon ,  Sok-Kyu Lee

发明人： Taehyun Jeon ,  Sok-Kyu Lee

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

CPC分类号： H04L1/0003 ,  H04W52/04 ,  H04W52/241

摘要： 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.

摘要翻译： 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：US07519022B2

公开(公告)日：2009-04-14

申请号：US10853890

申请日：2004-05-25

申请人： Hee-Jung Yu ,  Hee-Soo Lee ,  Sok-Kyu Lee

发明人： Hee-Jung Yu ,  Hee-Soo Lee ,  Sok-Kyu Lee

IPC分类号： H04W4/00

CPC分类号： H04L1/0656 ,  H04B7/0678 ,  H04B7/086

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： H04Q7/00

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

摘要： 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.

摘要翻译： 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。