公开(公告)号：US20120230317A1

公开(公告)日：2012-09-13

申请号：US13479218

申请日：2012-05-23

申请人： Yun-Joo KIM ,  Jeeyon CHOI ,  Sok-Kyu LEE

发明人： Yun-Joo KIM ,  Jeeyon CHOI ,  Sok-Kyu LEE

IPC分类号： H04W84/12

CPC分类号： H04W72/0413 ,  H04L1/1854 ,  H04W28/04 ,  H04W72/0446 ,  H04W74/002 ,  H04W74/004 ,  H04W74/006 ,  H04W84/12

摘要： The present invention relates to a method for efficient transmission of a request frame such as an RTS/CTS frame and a response frame in response to the request frame in a multi-user based wireless communication system. The method of the present invention comprises: a process where wireless terminals transmit a response frame at their own response frame transmission time through a request frame that contains information about a plurality of wireless terminals and information about the response frame transmission time of the respective wireless terminals; a process where the respective wireless terminals transmit a response frame according to a token scheme such that the response frame is transmitted to a final access point; and a process where only a representative wireless terminal selected depending on a given wireless environment receives the response frame.

摘要翻译： 本发明涉及一种用于在基于多用户的无线通信系统中响应于该请求帧而有效地传输诸如RTS / CTS帧和响应帧的请求帧的方法。 本发明的方法包括：无线终端通过包含关于多个无线终端的信息的请求帧在其自己的响应帧传输时间发送响应帧的过程和关于各个无线终端的响应帧传输时间的信息 ; 其中各个无线终端根据令牌方案发送响应帧，使得响应帧被发送到最终接入点; 以及仅根据给定无线环境选择的代表性无线终端接收到响应帧的处理。

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：US20110200130A1

公开(公告)日：2011-08-18

申请号：US13025048

申请日：2011-02-10

申请人： Jeeyon CHOI ,  Sok-Kyu LEE

发明人： Jeeyon CHOI ,  Sok-Kyu LEE

IPC分类号： H04L27/28

CPC分类号： H04L1/1685 ,  H04L1/1614 ,  H04L1/1854 ,  H04L2001/0093

摘要： A method for transmitting, by a single transmitting station, data to a plurality of receiving stations includes: generating a plurality of data frames including the data and Ack order information; transmitting the plurality of data frames to the plurality of receiving stations; and sequentially receiving block Ack signals from the plurality of receiving stations according to the Ack order information.

摘要翻译： 由单个发送站向多个接收站发送数据的方法包括：生成包括数据和确认单信息的多个数据帧; 将所述多个数据帧发送到所述多个接收站; 并根据Ack顺序信息依次接收来自多个接收站的块确认信号。

公开(公告)号：US20100157893A1

公开(公告)日：2010-06-24

申请号：US12556091

申请日：2009-09-09

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

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

IPC分类号： H04W40/00 ,  G06F11/00

CPC分类号： H04L1/0007 ,  H04L1/06

摘要： 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.

摘要翻译： 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：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：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。

公开(公告)号：US20110205968A1

公开(公告)日：2011-08-25

申请号：US13032369

申请日：2011-02-22

申请人： Yun-Joo KIM ,  Sok-Kyu LEE ,  Hyun-Kyu CHUNG

发明人： Yun-Joo KIM ,  Sok-Kyu LEE ,  Hyun-Kyu CHUNG

IPC分类号： H04W4/00

CPC分类号： H04W72/085 ,  H04W72/046

摘要： A sounding method of a transmitting terminal that transmits data to two or more receiving terminals in a wireless communication system includes transmitting a frame for requesting transmission of first sounding information to the two or more receiving terminals, receiving a frame including the first sounding information from each of the two or more receiving terminals, transmitting a frame including information for requesting transmission of channel state information and second sounding information to the two or more receiving terminals, and receiving a frame including the channel state information, which is measured by each of the two or more receiving terminals by using the second sounding information, from each of the two or more receiving terminals, wherein the channel state information measured by using the first sounding information and the channel state information received from each of the two or more receiving terminals are used to simultaneously transmit the data to the two or more receiving terminals.

摘要翻译： 在无线通信系统中向两个以上的接收终端发送数据的发送终端的发声方法包括：向所述两个以上的接收终端发送请求发送第一发声信息的帧，从各个接收终端接收包含所述第一发声信息的帧 发送包括用于请求发送信道状态信息和第二探测信息的信息的帧到两个或更多个接收终端，以及接收由两个或更多个接收终端中的每一个测量的包括信道状态信息的帧 使用来自两个以上的接收终端中的每一个的第二探测信息的多个接收终端，其中通过使用从两个或多个接收终端中的每一个接收的第一探测信息和信道状态信息测量的信道状态信息被使用 同时将数据传输到两个o r多接收终端。

公开(公告)号：US20110150148A1

公开(公告)日：2011-06-23

申请号：US12965282

申请日：2010-12-10

申请人： Jung-Bo SON ,  Eun-Young CHOI ,  Sok-Kyu LEE

发明人： Jung-Bo SON ,  Eun-Young CHOI ,  Sok-Kyu LEE

IPC分类号： H04L27/06

CPC分类号： H04L27/3863 ,  H04L5/0023 ,  H04L5/005 ,  H04L27/2647

摘要： The apparatus includes a radio frequency (RF) unit configured to arrange a plurality of symbols received through an antenna at a frequency domain, an analog to digital (AD) converter configured to converts the plurality of symbols arranged at the frequency domain to digital symbols, a fast Fourier transform (FFT) unit configured to transform the digital symbols through a fast Fourier transform scheme, a compensator configured to compensate a gain mismatch between an I-channel and a Q-channel of the transformed digital symbols, a mapping unit configured to the compensated digital symbols to a constellation diagram, and a detector configured to correlate the mapped symbols, extract correlation results, and detect a high throughput (HT) signal using the extracted correlation results.

摘要翻译： 该装置包括：射频（RF）单元，被配置为布置以频域通过天线接收的多个符号;模拟数字（AD）转换器，被配置为将在频域处布置的多个符号转换为数字符号; 被配置为通过快速傅里叶变换方案对数字符号进行变换的快速傅立叶变换（FFT）单元，配置为补偿经变换的数字符号的I信道和Q信道之间的增益失配的补偿器，配置为 将经补偿的数字符号转换成星座图，以及检测器，被配置为使所映射的符号相关，提取相关结果，并使用提取的相关结果检测高吞吐量（HT）信号。