公开(公告)号：US08923261B2

公开(公告)日：2014-12-30

申请号：US13458993

申请日：2012-04-27

申请人： Yu-Ro Lee ,  Jung-Bo Son ,  Sok-Kyu Lee

发明人： Yu-Ro Lee ,  Jung-Bo Son ,  Sok-Kyu Lee

IPC分类号： H04B15/00 ,  H04W84/12 ,  H04L1/00 ,  H04W48/08 ,  H04L5/00 ,  H04W28/22 ,  H04W28/06 ,  H04W28/04

CPC分类号： H04W72/0406 ,  H04B7/0452 ,  H04L1/007 ,  H04L1/0072 ,  H04L1/0606 ,  H04L1/0612 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0073 ,  H04W28/04 ,  H04W28/06 ,  H04W28/22 ,  H04W48/08 ,  H04W80/04 ,  H04W84/12

摘要： The present invention relates to a method and an apparatus for transmitting control and training symbols to improve transmission efficiency in a multi-user wireless communication system. The method for transmitting the control and training symbols in the multi-user wireless communication system according to one embodiment of the present invention comprises the steps of: determining whether a required transmission rate of each data can be satisfied through channel estimation in each of terminals when different data are simultaneously transmitted to each of the terminals; and transmitting a data frame to each of the terminals, the data frame being composed to discriminate the control and training symbols in each of the terminals using a combination of time, frequency, and code area when the required transmission rate of each data is not satisfied according to the determined result.

摘要翻译： 本发明涉及用于发送控制和训练符号以提高多用户无线通信系统中的传输效率的方法和装置。 根据本发明的一个实施例的用于在多用户无线通信系统中发送控制和训练符号的方法包括以下步骤：通过每个终端中的信道估计来确定是否可以满足每个数据的所需传输速率 不同的数据同时发送到每个终端; 并且向每个终端发送数据帧，所述数据帧被构成为当不满足每个数据的所需传输速率时，使用时间，频率和代码区域的组合来区分每个终端中的控制和训练符号 根据确定的结果。

公开(公告)号：US08861495B2

公开(公告)日：2014-10-14

申请号：US13511363

申请日：2010-11-24

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： H04W72/14 ,  H04B7/04 ,  H04W74/08

CPC分类号： H04B7/0452 ,  H04W74/0816

摘要： The present invention relates to a method for protecting MU-MIMO (Multi User-Multiple Input Multiple Output) data through a multi-RTS/CTS frame exchange in a MU-MIMO based wireless communication system. The method of the present invention comprises: a process where an indicator for VHT data protection is added to an RTS frame, using the structure of an RTS/CTS frame for an existing legacy terminal during the multi RTS/CTS frame exchange; a process where an access point designates and then transmits the duration period of the RTS frame while transmitting the RTS frame; and a process where wireless terminals up to the (n−1)th terminal designate the duration period of the CTS frame as ‘0’ and send the designated duration period, while only the n-th wireless terminal designates NAV for data protection.

摘要翻译： 本发明涉及在基于MU-MIMO的无线通信系统中通过多RTS / CTS帧交换来保护MU-MIMO（多用户多输入多输出）数据的方法。 本发明的方法包括：在多RTS / CTS帧交换期间，使用RTS / CTS帧的结构为现有的传统终端，将用于VHT数据保护的指示符添加到RTS帧的过程; 其中接入点指定然后在发送RTS帧的同时发送RTS帧的持续时间段的过程; 以及直到第（n-1）个终端的无线终端将CTS帧的持续时间指定为“0”并发送指定的持续时间的过程，而仅第n个无线终端指定用于数据保护的NAV。

公开(公告)号：US08780737B2

公开(公告)日：2014-07-15

申请号：US13333656

申请日：2011-12-21

申请人： Seung-Kwon Cho ,  Hun-Sik Kang ,  Sok-Kyu Lee

发明人： Seung-Kwon Cho ,  Hun-Sik Kang ,  Sok-Kyu Lee

IPC分类号： H04L12/26 ,  H04W74/08 ,  G06F11/07

CPC分类号： H04W74/0808 ,  G06F11/0751 ,  H04L1/243

摘要： Disclosed is a loop-back apparatus in wireless communication systems, including: an MAC processing unit configured to transmit a user data and a control frame when a loop-back mode is established; a loop-back unit configured to generate a response frame of a receipt for the user data and the control message transmitted from the MAC processing unit and again feedbacks the generated response frame to the MAC processing unit.

摘要翻译： 公开了一种无线通信系统中的环回装置，包括：MAC处理单元，被配置为在建立环回模式时发送用户数据和控制帧; 循环单元，被配置为生成用于所述用户数据的接收的响应帧和从所述MAC处理单元发送的所述控制消息，并且将所生成的响应帧再次反馈给所述MAC处理单元。

公开(公告)号：US08626079B2

公开(公告)日：2014-01-07

申请号：US12177605

申请日：2008-07-22

申请人： Il-Gu Lee ,  Chanho Yoon ,  Eun-Young Choi ,  Hun-Sik Kang ,  Minho Cheong ,  Sok-Kyu Lee

发明人： Il-Gu Lee ,  Chanho Yoon ,  Eun-Young Choi ,  Hun-Sik Kang ,  Minho Cheong ,  Sok-Kyu Lee

IPC分类号： H04B1/00 ,  H04B7/00

CPC分类号： H04L1/0003 ,  H04B17/318

摘要： Provided is a link adaptation method and apparatus in wireless communication system. The method, includes: amplifying a received signal; converting the amplified signal into a digital signal; calculating digital signal strength; and calculating the received signal strength based on the digital signal strength and a gain of said amplifying a received signal.

摘要翻译： 提供了一种无线通信系统中的链路适配方法和装置。 该方法包括：放大接收信号; 将放大的信号转换成数字信号; 计算数字信号强度; 以及基于所述数字信号强度和所述放大接收信号的增益来计算接收信号强度。

公开(公告)号：US08599817B2

公开(公告)日：2013-12-03

申请号：US12969357

申请日：2010-12-15

申请人： Il-Gu Lee ,  Sok-Kyu Lee

发明人： Il-Gu Lee ,  Sok-Kyu Lee

IPC分类号： H04L12/28 ,  H04J1/16

CPC分类号： H04L27/2657 ,  H04L27/2688 ,  H04L41/0654

摘要： Provided is an apparatus and method for transmitting and receiving data. The method includes respectively estimating a carrier frequency offset (CFO) of data packets transmitted during a transmit opportunity (TXOP) period by a unit of a packet; calculating an average CFO of the estimated CFOs estimated during a window period for the data packets; and compensating an estimated CFO of a predetermined data packet to one of the estimated CFO of the predetermined data packet and the average CFO, and restoring the predetermined data packet.

摘要翻译： 提供了一种用于发送和接收数据的装置和方法。 该方法包括分别估计在发送机会（TXOP）周期期间以分组为单位发送的数据分组的载波频率偏移（CFO）; 计算在数据包的窗口期间估计的估计的首席财务官的平均CFO; 以及将预定数据分组的估计CFO补偿到预定数据分组的估计CFO和平均CFO之一，并恢复预定数据分组。

公开(公告)号：US08416897B2

公开(公告)日：2013-04-09

申请号：US12561076

申请日：2009-09-16

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

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

IPC分类号： H04B7/10 ,  H04L27/06

CPC分类号： H04W52/028 ,  H04L2027/0016 ,  H04L2027/0067 ,  H04W52/0245 ,  Y02D70/142

摘要： 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.

摘要翻译： 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：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：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：US20120121040A1

公开(公告)日：2012-05-17

申请号：US13355230

申请日：2012-01-20

申请人： Hee-Jung YU ,  Taehyun Jeon ,  Myung-Soon Kim ,  Eun-Young Choi ,  Sok-Kyu Lee ,  Deuk-Su Lyu

发明人： Hee-Jung YU ,  Taehyun Jeon ,  Myung-Soon Kim ,  Eun-Young Choi ,  Sok-Kyu Lee ,  Deuk-Su Lyu

IPC分类号： H04B1/02

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

摘要： 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.