公开(公告)号：US09100144B2

公开(公告)日：2015-08-04

申请号：US13642954

申请日：2011-04-21

Applicant: Hak Seong Kim ,  Han Byul Seo ,  Byoung Hoon Kim ,  Ki Jun Kim ,  Dae Won Lee

Inventor： Hak Seong Kim ,  Han Byul Seo ,  Byoung Hoon Kim ,  Ki Jun Kim ,  Dae Won Lee

IPC: H04L5/00 ,  H04B7/04

CPC classification number: H04W72/0406 ,  H04B7/0413 ,  H04B7/0452 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0069 ,  H04L5/0073 ,  H04L5/0078 ,  H04L5/0092 ,  H04L5/0094 ,  H04W72/042 ,  H04W72/14 ,  H04W88/08

Abstract: The present disclosure relates to a method in which a base station transmits signals to a relay node in a multiuser multi-antenna (MIMO) wireless communication system. More particularly, the method includes: allocating one or more antenna ports to one or more relay nodes, respectively; mapping each of a plurality of downlink grant signals for the one or more relay nodes to a preset resource domain from among resource domains corresponding to one of the allocated antenna ports; mapping uplink grant signals or data signals for the one or more relay nodes to the resource domains corresponding to the allocated antenna ports; and transmitting the mapped signals to the one or more relay nodes.

Abstract translation: 本公开涉及一种基站在多用户多天线（MIMO）无线通信系统中向中继节点发送信号的方法。 更具体地说，该方法包括：分别将一个或多个天线端口分配给一个或多个中继节点; 将所述一个或多个中继节点的多个下行链路许可信号中的每一个从对应于所分配的天线端口之一的资源域中映射到预设的资源域; 将所述一个或多个中继节点的上行链路授权信号或数据信号映射到与分配的天线端口对应的资源域; 以及将映射的信号发送到所述一个或多个中继节点。

公开(公告)号：US09042314B2

公开(公告)日：2015-05-26

申请号：US13386015

申请日：2010-08-02

Applicant: Byeong Woo Kang ,  Dong Wook Roh ,  Yu Jin Noh ,  Bong Hoe Kim ,  Dae Won Lee

Inventor： Byeong Woo Kang ,  Dong Wook Roh ,  Yu Jin Noh ,  Bong Hoe Kim ,  Dae Won Lee

IPC: H04L5/00 ,  H04B7/04 ,  H04L1/16 ,  H04W74/00 ,  H04W72/04

CPC classification number: H04L5/0023 ,  H04B7/0404 ,  H04B7/0413 ,  H04L1/1671 ,  H04L5/0055 ,  H04W72/04 ,  H04W72/042 ,  H04W74/004

Abstract: A method for performing retransmission at a user equipment of a MIMO wireless communication system is disclosed. The method comprises transmitting multiple transport blocks to a base station for a transmission unit time in accordance with uplink grant information, which includes a first new data indicator; receiving ACK/NACK (Acknowledgement/Negative-ACK) responses corresponding to the respective transport blocks and uplink grant information, which includes a second new data indicator, from the base station; and performing new transmission or retransmission for the multiple transport blocks in one transport block unit for a transmission unit time in accordance with the ACK/NACK responses and the second new data indicator, if transport rank is reduced to 1.

Abstract translation: 公开了一种在MIMO无线通信系统的用户设备进行重传的方法。 该方法包括：根据包括第一新数据指示符的上行授权信息向基站发送多个传输块用于传输单元时间; 从基站接收对应于相应传输块的ACK / NACK（确认/否定ACK）响应和包括第二新数据指示符的上行链路许可信息; 并且如果传输等级减少到1，则根据ACK / NACK响应和第二新数据指示符，针对传输单元时间的一个传输块单元中的多个传输块执行新的传输或重传。

公开(公告)号：US09025544B2

公开(公告)日：2015-05-05

申请号：US13577210

申请日：2011-02-10

Applicant: Eun Sun Kim ,  Yong Ho Seok ,  Byeong Woo Kang ,  Dae Won Lee

Inventor： Eun Sun Kim ,  Yong Ho Seok ,  Byeong Woo Kang ,  Dae Won Lee

IPC: H04W74/00 ,  H04W28/00 ,  H04W74/08 ,  H04W28/26 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04W28/26 ,  H04W84/12

Abstract: A channel access method and apparatus in a wireless local area network (WLAN) system are provided. A channel access method performed by an originating station in a wireless local area network (WLAN) system using a multi-channel including a plurality of subchannels includes transmitting RTS (Request To Send) frames to a destination station via the plurality of subchannels, respectively, receiving CTS (Clear To Send) frames transmitted by the destination station via the plurality of sub-channels in response to the RTS frames; and transmitting data via the subchannels via which the CTS frames have been received.

Abstract translation: 提供了一种无线局域网（WLAN）系统中的信道接入方法和装置。 由使用包括多个子信道的多信道的无线局域网（WLAN）系统中的始发站执行的信道接入方法包括分别经由多个子信道向目的地站发送RTS（请求发送）帧， 响应于RTS帧，经由多个子信道接收由目的站发送的CTS（清除发送）帧; 以及经由其接收到CTS帧的子信道发送数据。

公开(公告)号：US09007885B2

公开(公告)日：2015-04-14

申请号：US13254161

申请日：2010-04-13

Applicant: Yu Jin Noh ,  Dong Wook Roh ,  Byeong Woo Kang ,  Bong Hoe Kim ,  Dae Won Lee

Inventor： Yu Jin Noh ,  Dong Wook Roh ,  Byeong Woo Kang ,  Bong Hoe Kim ,  Dae Won Lee

IPC: H04J11/00 ,  H04B7/208 ,  H04B7/04 ,  H04L25/03

CPC classification number: H04B7/0473 ,  H04B7/0404 ,  H04B7/0456 ,  H04B7/0465 ,  H04B7/0486 ,  H04B7/0639 ,  H04L25/03343 ,  H04L25/03923 ,  H04L25/03929 ,  H04L27/2601 ,  H04L27/2615 ,  H04L27/2636 ,  H04L2025/03426 ,  H04W72/06

Abstract: A method for transmitting and receiving uplink signals using an optimized rank 3 codebook is disclosed. The optimized rank 3 codebook includes 6 precoding matrix groups, each of which has 1 variable having an amplitude of 1. Preferably, the optimized 4Tx rank 3 codebook has 12 precoding matrix, two precoding matrixes are selected from each the above 6 precoding matrix groups considering chordal distance and the number of precoding matrix.

Abstract translation: 公开了一种使用优化的3级码本发送和接收上行链路信号的方法。 优化的等级3码本包括6个预编码矩阵组，每个预编码矩阵组具有1个具有幅度为1的变量。优选地，优化的4Tx等级3码本具有12个预编码矩阵，考虑到上述6个预编码矩阵组中的每一个选择两个预编码矩阵 弦距离和预编码矩阵的数量。

公开(公告)号：US09001814B2

公开(公告)日：2015-04-07

申请号：US13316315

申请日：2011-12-09

Applicant: Dae Won Lee ,  Bong Hoe Kim ,  Young Woo Yun ,  Ki Jun Kim ,  Dong Wook Roh ,  Hak Seong Kim ,  Hyun Wook Park

Inventor： Dae Won Lee ,  Bong Hoe Kim ,  Young Woo Yun ,  Ki Jun Kim ,  Dong Wook Roh ,  Hak Seong Kim ,  Hyun Wook Park

IPC: H04B7/208 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04L5/00

CPC classification number: H04L5/0055 ,  H04L1/0081 ,  H04L1/1664 ,  H04L1/1671 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0057

Abstract: A method for transmitting uplink signals, which include ACK/NACK signals, control signals other than the ACK/NACK signals, and data signals, is disclosed. The method comprises serially multiplexing the control signals and the data signals; sequentially mapping the multiplexed signals within a specific resource region in accordance with a time-first mapping method, the specific resource region including a plurality of symbols and a plurality of virtual subcarriers; and arranging the ACK/NACK signals at both symbols near symbols to which a reference signal of the plurality of symbols is transmitted. Thus, the uplink signals can be transmitted to improve receiving reliability of signals having high priority.

Abstract translation: 公开了一种用于发送包括ACK / NACK信号，除了ACK / NACK信号以外的控制信号和数据信号的上行链路信号的方法。 该方法包括串行多路复用控制信号和数据信号; 根据时间优先映射方法顺序地映射特定资源区域内的多路复用信号，该特定资源区域包括多个符号和多个虚拟子载波; 以及在发送多个符号的参考信号的符号附近的两个符号处布置ACK / NACK信号。 因此，可以发送上行链路信号以提高具有高优先级的信号的接收可靠性。

公开(公告)号：US09001802B2

公开(公告)日：2015-04-07

申请号：US12539420

申请日：2009-08-11

Applicant: Yu Jin Noh ,  Ki Jun Kim ,  Dong Wook Roh ,  Byeong Woo Kang ,  Dae Won Lee ,  Bong Hoe Kim ,  Dong Youn Seo

Inventor： Yu Jin Noh ,  Ki Jun Kim ,  Dong Wook Roh ,  Byeong Woo Kang ,  Dae Won Lee ,  Bong Hoe Kim ,  Dong Youn Seo

IPC: H04W4/00 ,  H04L27/26 ,  H04B7/06 ,  H04L25/03

CPC classification number: H04B7/0486 ,  H04B7/0456 ,  H04B7/0617 ,  H04J11/0023 ,  H04L25/03923 ,  H04L25/03929 ,  H04L27/2614 ,  H04L27/2615 ,  H04L27/2636 ,  H04W72/04

Abstract: A method and apparatus for allowing a UE to transmit uplink signals using a MIMO scheme are disclosed. In order to maintain good Peak power to Average Power Ratio (PAPR) or Cubic Metric (CM) properties when the UE transmits uplink signals using the MIMO scheme, the UE uses a preceding scheme based on a preceding matrix established in a manner that one layer is transmitted to each antenna in specific rank transmission.

Abstract translation: 公开了一种允许UE使用MIMO方案发送上行链路信号的方法和装置。 为了在UE使用MIMO方案传输上行链路信号时保持良好的峰值功率到平均功率比（PAPR）或立方度量（CM）属性，UE使用基于先前的矩阵，其以一层 以特定秩传输的方式发送到每个天线。

公开(公告)号：US08995342B2

公开(公告)日：2015-03-31

申请号：US13515266

申请日：2010-08-18

Applicant: Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim ,  Dae Won Lee

Inventor： Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim ,  Dae Won Lee

IPC: H04B15/00 ,  H04W84/12 ,  H04W72/08 ,  H04W28/04 ,  H04W48/16 ,  H04W88/08

CPC classification number: H04W72/082 ,  H04W28/04 ,  H04W48/16 ,  H04W72/046 ,  H04W84/12 ,  H04W88/08

Abstract: An interference avoidance method performed by an Access Point (AP) in a WLAN system in an Overlapping Basic Service Set (OBSS) environment is provided. The interference avoidance method includes receiving an interference avoidance request message from the first STA, the interference avoidance request message informing that frame transmission of the AP acts as interference with a first STA; transmitting an interference avoidance response message in response to the interference avoidance request message; obtaining first channel information about a first channel between the first STA and the AP from the first STA which has received the interference avoidance response message; determining a transmitting steering matrix based on the first channel information; and transmitting data to a second STA by performing beamforming according to the transmitting steering matrix.

Abstract translation: 提供了一种由重叠基础服务集（OBSS）环境中的WLAN系统中的接入点（AP）执行的干扰避免方法。 干扰避免方法包括从第一STA接收干扰避免请求消息，通知AP的帧传输作为与第一STA的干扰的干扰避免请求消息; 响应于所述干扰避免请求消息发送干扰避免响应消息; 从已经接收到干扰避免响应消息的第一STA获取关于第一STA和AP之间的第一信道的第一信道信息; 基于所述第一信道信息确定发射导向矩阵; 以及通过根据发射导向矩阵执行波束成形来将数据发送到第二STA。

公开(公告)号：US08953530B2

公开(公告)日：2015-02-10

申请号：US12980260

申请日：2010-12-28

Applicant: Hak Seong Kim ,  Bong Hoe Kim ,  Ki Jun Kim ,  Suk Hyon Yoon ,  In Jae Jung ,  Dae Won Lee ,  Joon Kui Ahn ,  Dong Youn Seo

Inventor： Hak Seong Kim ,  Bong Hoe Kim ,  Ki Jun Kim ,  Suk Hyon Yoon ,  In Jae Jung ,  Dae Won Lee ,  Joon Kui Ahn ,  Dong Youn Seo

IPC: H04W72/04 ,  H04W72/08

CPC classification number: H04W72/0413 ,  H04L5/0055 ,  H04L5/0057 ,  H04W72/085

Abstract: A method for adaptively allocating resources of an uplink control channel according to a system situation is disclosed. If a base station (BS) recognizes the system situation, establishes control information for resource allocation, and transmits the control information to a mobile station (MS), the mobile station (MS) allocates resources for transmitting uplink control information using a specific block or a specific resource distribution method according to the corresponding control information. The system situation may be changed according to the number of users contained in the BS's coverage or the usage of a multi-antenna. The variation of the system situation is actively reflected so that the uplink channel resources can be effectively used.

Abstract translation: 公开了一种根据系统情况自适应地分配上行链路控制信道的资源的方法。 如果基站（BS）识别系统情况，则建立资源分配控制信息，并将控制信息发送到移动台（MS），移动站（MS）使用特定块分配用于发送上行链路控制信息的资源， 根据相应控制信息的具体资源分配方法。 可以根据BS覆盖范围内的用户数量或多天线的使用情况来改变系统状况。 积极反映系统状况的变化，从而可以有效利用上行链路信道资源。

公开(公告)号：US08942214B2

公开(公告)日：2015-01-27

申请号：US13307774

申请日：2011-11-30

Applicant: Dae Won Lee ,  Ill Soo Sohn ,  Yong Ho Seok

Inventor： Dae Won Lee ,  Ill Soo Sohn ,  Yong Ho Seok

IPC: H04W4/00 ,  H04B7/06 ,  H04B7/04 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04L5/0053 ,  H04B7/0452 ,  H04B7/0636 ,  H04L1/1812 ,  H04L5/0023 ,  H04W16/28 ,  H04W84/12

Abstract: A method and wireless apparatus are described, whereby a transceiver receives a null data packet announcement (NDPA) frame from a transmitter to initiate channel sounding, and receives a null data packet (NDP) from the transmitter, the NDP following the NDPA frame. A first report field is configured to include beamforming information, and a second report field is configured to include signal to noise ratio (SNR) information. A determination is made as to whether feedback data including the first report field and the second report field is transmitted in a single feedback frame or a plurality of feedback frames. If the feedback data is determined to be transmitted in the plurality of feedback frames, the feedback data is split into a plurality of segments, which is transmitted in a single aggregated medium access control protocol data unit (A-MPDU) including a plurality of MPDUs.

Abstract translation: 描述了一种方法和无线装置，由此收发机从发射机接收零数据分组通告（NDPA）帧以发起信道探测，并且从发射机接收NDPA之后的NDP的NDPA帧。 第一报告字段被配置为包括波束成形信息，并且第二报告字段被配置为包括信噪比（SNR）信息。 确定在单个反馈帧或多个反馈帧中是否发送包括第一报告字段和第二报告字段的反馈数据。 如果反馈数据被确定为在多个反馈帧中发送，则反馈数据被分割成多个段，其在包括多个MPDU的单个聚合介质访问控制协议数据单元（A-MPDU）中发送 。

公开(公告)号：US08891650B2

公开(公告)日：2014-11-18

申请号：US13132596

申请日：2009-12-03

Applicant: Yu Jin Noh ,  Young Woo Yun ,  Dae Won Lee ,  Bong Hoe Kim ,  Ki Jun Kim

Inventor： Yu Jin Noh ,  Young Woo Yun ,  Dae Won Lee ,  Bong Hoe Kim ,  Ki Jun Kim

IPC: H04B7/02 ,  H04L1/02 ,  H04B7/06 ,  H04L5/00 ,  H04W52/34

CPC classification number: H04B7/0617 ,  H04L5/0048 ,  H04W52/34

Abstract: A method for transmitting and receiving downlink Reference Signals (RSs) in a wireless communication system using multiple antennas is disclosed. The downlink RS transmission method includes transmitting a first Orthogonal Frequency Division Multiplexing (OFDM) symbol in which RSs for a plurality of antenna port of first group are allocated in a predetermined order along a frequency axis, RSs for a plurality of antenna port of second group are allocated in a predetermined order along the frequency axis, and the RSs for the plurality of antenna port of first group are multiplexed in Code Division Multiplexing (CDM) with the RSs for the plurality of antenna port of second group by pairing each of the plurality of antenna port of first group with one of the plurality of antenna port of second group, and transmitting a second OFDM symbol in which the RSs for the plurality of antenna port of first group and the RSs for the plurality of antenna port of second group are positioned in an RS pattern being a frequency-domain shift of an RS pattern of the first OFDM symbol.

Abstract translation: 公开了一种在使用多个天线的无线通信系统中发送和接收下行链路参考信号（RS）的方法。 下行链路RS传输方法包括发送第一正交频分复用（OFDM）符号，其中沿着频率轴以预定顺序分配第一组的多个天线端口的RS，第二组的多个天线端口的RS 沿着频率轴以预定顺序被分配，并且第一组的多个天线端口的RS被多路复用在码分复用（CDM）中，与第二组的多个天线端口的RS通过配对多个 第一组的天线端口与第二组的多个天线端口之一的天线端口相连接，并且发送第二组OFDM符号，其中第一组的多个天线端口的RS和第二组的多个天线端口的RS是 位于RS模式中的是第一OFDM符号的RS模式的频域偏移。