专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09397737B2 Method and apparatus for indicating destination stations in WLAN system supporting multi-user multiple input multiple output 有权
标题翻译：用于在支持多用户多输入多输出的WLAN系统中指示目的地站的方法和装置
公开(公告)号：US09397737B2
公开(公告)日：2016-07-19
申请号：US13382522
申请日：2010-07-06
申请人： Yong Ho Seok , Byeong Woo Kang , Yu Jin Noh , Dae Won Lee
发明人： Yong Ho Seok , Byeong Woo Kang , Yu Jin Noh , Dae Won Lee
IPC分类号： H04W48/08 , H04B7/04 , H04W52/34 , H04W84/12 , H04L5/00 , H04L25/02 , H04W4/06 , H04W8/26 , H04W24/00 , H04W88/08
CPC分类号： H04B7/0452 , H04L5/0023 , H04L5/0048 , H04L25/0204 , H04L25/0226 , H04W4/06 , H04W8/26 , H04W24/00 , H04W48/08 , H04W52/346 , H04W84/12 , H04W88/08
摘要： A method of indicating destination stations, performed by an access point (AP), in a wireless local area network (WLAN) system supporting multi-user multiple input multiple output (MU-MIMO) is provided. The method includes transmitting a sounding request frame to the plurality of destination stations to transmit a sounding frame used for channel estimation between the AP and each destination station, receiving the sounding frame in response to the sounding frame request from each station, and transmitting a first data frame spatially multiplexed with respect to the plurality of destination stations by performing channel estimation on the basis of the sounding frame, wherein the sounding request frame comprises a group identifier (ID) indicating the plurality of destination stations.
摘要翻译：提供了一种在支持多用户多输入多输出（MU-MIMO）的无线局域网（WLAN）系统中由接入点（AP）指示目的地站的方法。所述方法包括：向所述多个目的地站发送探测请求帧，以发送在所述AP与每个目的站之间用于信道估计的探测帧，响应于来自每个站的所述探测帧请求接收所述探测帧，以及发送第一通过基于所述探测帧进行信道估计而相对于所述多个目的站进行空间复用的数据帧，其中所述探测请求帧包括指示所述多个目的地站的组标识符（ID）。

2. 发明授权

US09385792B2 Method for transmitting codewords in multiple input multiple output system 有权
标题翻译：用于在多输入多输出系统中发送码字的方法
公开(公告)号：US09385792B2
公开(公告)日：2016-07-05
申请号：US12669759
申请日：2008-08-14
申请人： Dong Youn Seo , Bong Hoe Kim , Young Woo Yun , Ki Jun Kim , Dae Won Lee , Yu Jin Noh , Hak Seong Kim , Dong Wook Roh , Joon Kui Ahn
发明人： Dong Youn Seo , Bong Hoe Kim , Young Woo Yun , Ki Jun Kim , Dae Won Lee , Yu Jin Noh , Hak Seong Kim , Dong Wook Roh , Joon Kui Ahn
IPC分类号： H04B7/216 , H04B7/04 , H04B7/06 , H04L1/06 , H04L1/18 , H04L1/00 , H04L25/03
CPC分类号： H04B7/0417 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/06 , H04L1/1893 , H04L25/03343
摘要： A method for effectively transmitting/receiving a codeword in a MIMO system is disclosed. In a system including a plurality of predetermined rank structures, a reception end transmits rank information (RI), precoding matrix index (PMI), and channel quality information (CQI) of each codeword to a transmission end. The transmission end selects a rank structure on the basis of information received from the reception end. The transmission end selects only some codeword blocks among a plurality of codeword blocks available for the selected rank structure, transmits signals via the selected codeword blocks, and transmits a null signal for the non-selected codeword blocks.
摘要翻译：公开了一种在MIMO系统中有效发送/接收码字的方法。在包括多个预定等级结构的系统中，接收端向发送端发送每个码字的秩信息（RI），预编码矩阵索引（PMI）和信道质量信息（CQI）。发送端基于从接收端接收的信息来选择秩结构。发送端仅选择可用于所选秩结构的多个码字块中的一些码字块，经由所选择的码字块发送信号，并且发送用于未选择的码字块的空信号。

3. 发明授权

US09178595B2 Method for indicating precoding matrix indicator in uplink MIMO system with based on SC-FDMA 有权
标题翻译：基于SC-FDMA的上行MIMO系统中预编码矩阵指示符的方法
公开(公告)号：US09178595B2
公开(公告)日：2015-11-03
申请号：US13148886
申请日：2010-02-19
申请人： Byeong Woo Kang , Joon Kui Ahn , Dong Youn Seo , Jung Hoon Lee , Yu Jin Noh , Byoung Hoon Kim , Suck Chel Yang , Bong Hoe Kim , Dae Won Lee
发明人： Byeong Woo Kang , Joon Kui Ahn , Dong Youn Seo , Jung Hoon Lee , Yu Jin Noh , Byoung Hoon Kim , Suck Chel Yang , Bong Hoe Kim , Dae Won Lee
IPC分类号： H04B7/216 , H04B7/06 , H04L5/00
CPC分类号： H04B7/0639 , H04L5/0039
摘要： A method of transmitting PMI (precoding matrix indicator) information in an uplink MIMO system is disclosed. The present invention includes the steps of receiving channel information from a user equipment and transmitting information on a resource allocated to the user equipment in uplink transmission and PMI information indicating a precoding matrix to apply to a region of the resource among a plurality of precoding matrices to the user equipment based on the received channel information, wherein the resource allocated to the user equipment is allocated by a bundle unit of a prescribed number of subcarriers, wherein each of a plurality of the precoding matrices are applied to regions generated from dividing a whole frequency band into a prescribed number of regions, respectively, and wherein the precoding matrix applied to the resource among a plurality of the precoding matrices has a maximum area resulting from overlapping a frequency band occupied by the allocated resource with a frequency band having the precoding matrix applied thereto.
摘要翻译：公开了一种在上行链路MIMO系统中发送PMI（预编码矩阵指示符）信息的方法。本发明包括以下步骤：从用户设备接收信道信息，并在上行链路传输中发送关于分配给用户设备的资源的信息，以及指示预编码矩阵的PMI信息，以应用于多个预编码矩阵中的资源区域，以所述用户设备基于所接收的信道信息，其中，分配给所述用户设备的资源由规定数量的副载波的分组单元分配，其中，所述多个预编码矩阵中的每一个被应用于从分频整个频率并且其中在多个预编码矩阵中应用于资源的预编码矩阵具有由所分配的资源占据的频带与具有预编码矩阵的频带重叠而产生的最大区域到此。

4. 发明授权

US09042314B2 Method for performing retransmission in MIMO wireless communication system and apparatus therefor 有权
标题翻译： MIMO无线通信系统中的重传方法及其装置
公开(公告)号：US09042314B2
公开(公告)日：2015-05-26
申请号：US13386015
申请日：2010-08-02
申请人： Byeong Woo Kang , Dong Wook Roh , Yu Jin Noh , Bong Hoe Kim , Dae Won Lee
发明人： Byeong Woo Kang , Dong Wook Roh , Yu Jin Noh , Bong Hoe Kim , Dae Won Lee
IPC分类号： H04L5/00 , H04B7/04 , H04L1/16 , H04W74/00 , H04W72/04
CPC分类号： H04L5/0023 , H04B7/0404 , H04B7/0413 , H04L1/1671 , H04L5/0055 , H04W72/04 , H04W72/042 , H04W74/004
摘要： 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.
摘要翻译：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。

5. 发明授权

US09007885B2 Uplink signal transmission and reception using optimized rank 3 codebook 有权
标题翻译：使用优化的3级码本上行信号发送和接收
公开(公告)号：US09007885B2
公开(公告)日：2015-04-14
申请号：US13254161
申请日：2010-04-13
申请人： Yu Jin Noh , Dong Wook Roh , Byeong Woo Kang , Bong Hoe Kim , Dae Won Lee
发明人： Yu Jin Noh , Dong Wook Roh , Byeong Woo Kang , Bong Hoe Kim , Dae Won Lee
IPC分类号： H04J11/00 , H04B7/208 , H04B7/04 , H04L25/03
CPC分类号： 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
摘要： 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.
摘要翻译：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。

6. 发明授权

US09001802B2 Method and apparatus for transmitting uplink signals using multi-antenna 有权
标题翻译：使用多天线发送上行链路信号的方法和装置
公开(公告)号：US09001802B2
公开(公告)日：2015-04-07
申请号：US12539420
申请日：2009-08-11
申请人： Yu Jin Noh , Ki Jun Kim , Dong Wook Roh , Byeong Woo Kang , Dae Won Lee , Bong Hoe Kim , Dong Youn Seo
发明人： Yu Jin Noh , Ki Jun Kim , Dong Wook Roh , Byeong Woo Kang , Dae Won Lee , Bong Hoe Kim , Dong Youn Seo
IPC分类号： H04W4/00 , H04L27/26 , H04B7/06 , H04L25/03
CPC分类号： H04B7/0486 , H04B7/0456 , H04B7/0617 , H04J11/0023 , H04L25/03923 , H04L25/03929 , H04L27/2614 , H04L27/2615 , H04L27/2636 , H04W72/04
摘要： 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.
摘要翻译：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。

7. 发明授权

US08995342B2 Method of reducing interference between stations in wireless LAN system, and apparatus supporting the same 有权
标题翻译：减少无线局域网系统中站间干扰的方法及其支持的装置
公开(公告)号：US08995342B2
公开(公告)日：2015-03-31
申请号：US13515266
申请日：2010-08-18
申请人： Yong Ho Seok , Yu Jin Noh , Bong Hoe Kim , Dae Won Lee
发明人： Yong Ho Seok , Yu Jin Noh , Bong Hoe Kim , Dae Won Lee
IPC分类号： H04B15/00 , H04W84/12 , H04W72/08 , H04W28/04 , H04W48/16 , H04W88/08
CPC分类号： H04W72/082 , H04W28/04 , H04W48/16 , H04W72/046 , H04W84/12 , H04W88/08
摘要： 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.
摘要翻译：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。

8. 发明授权

US08891650B2 Method for transmitting and receiving downlink reference signals in a wireless communication system having multiple antennas 有权
标题翻译：用于在具有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的方法
公开(公告)号：US08891650B2
公开(公告)日：2014-11-18
申请号：US13132596
申请日：2009-12-03
申请人： Yu Jin Noh , Young Woo Yun , Dae Won Lee , Bong Hoe Kim , Ki Jun Kim
发明人： Yu Jin Noh , Young Woo Yun , Dae Won Lee , Bong Hoe Kim , Ki Jun Kim
IPC分类号： H04B7/02 , H04L1/02 , H04B7/06 , H04L5/00 , H04W52/34
CPC分类号： H04B7/0617 , H04L5/0048 , H04W52/34
摘要： 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.
摘要翻译：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。

9. 发明授权

US08879490B2 Method and apparatus for transceiving a MIMO packet in a wireless LAN system 有权
标题翻译：用于在无线LAN系统中收发MIMO分组的方法和装置
公开(公告)号：US08879490B2
公开(公告)日：2014-11-04
申请号：US13505388
申请日：2011-06-30
申请人： Dae Won Lee , Byeong Woo Kang , Yu Jin Noh , Yong Ho Seok , Dong Wook Roh
发明人： Dae Won Lee , Byeong Woo Kang , Yu Jin Noh , Yong Ho Seok , Dong Wook Roh
IPC分类号： H04W4/00 , H04L1/00 , H04L1/06 , H04L27/26 , H04B7/04 , H04W84/12
CPC分类号： H04L1/0009 , H04B7/0413 , H04B7/0452 , H04L1/0003 , H04L1/0031 , H04L1/0057 , H04L1/0059 , H04L1/0075 , H04L1/06 , H04L5/0048 , H04L25/0226 , H04L27/2602 , H04W84/12
摘要： A method of transmitting a multiple input multiple output (MIMO) packet by a transmitter in a wireless local area network (WLAN) system is provided. The method includes: generating a MIMO packet including at least one spatial stream set transmitted respectively to at least one receiver, wherein each spatial stream set is encoded on the basis of one of two encoding schemes; transmitting first control information including a MIMO indicator and a first modulation and coding scheme (MCS) field, wherein the MIMO indicator indicates whether the MIMO packet is for single user (SU)-MIMO or multi user (MU)-MIMO, and the first MCS field indicates an MCS used for the MIMO packet if the MIMO packet is for SU-MIMO transmission, and indicates an encoding scheme applied for each of the spatial stream sets if the MIMO packet is for MU-MIMO transmission; and transmitting the MIMO packet to at least one receiver.
摘要翻译：提供了一种在无线局域网（WLAN）系统中由发射机发送多输入多输出（MIMO）分组的方法。该方法包括：产生包括分别发送给至少一个接收机的至少一个空间流集合的MIMO分组，其中每个空间流集合基于两种编码方案之一进行编码; 发送包括MIMO指示符和第一调制和编码方案（MCS）字段的第一控制信息，其中所述MIMO指示符指示所述MIMO分组是针对单用户（SU）-MIMO还是多用户（MU）-MIMO，并且所述第一如果MIMO分组用于SU-MIMO传输，则MCS字段指示用于MIMO分组的MCS，并且如果MIMO分组用于MU-MIMO传输，则指示针对每个空间流集合应用的编码方案; 以及将MIMO分组发送到至少一个接收机。

10. 发明授权

US08867394B2 Interference avoidance method and apparatus for supporting same in a wireless LAN system 有权
标题翻译：用于在无线LAN系统中支持的干扰避免方法和装置
公开(公告)号：US08867394B2
公开(公告)日：2014-10-21
申请号：US13517951
申请日：2010-11-04
申请人： Yong Ho Seok , Yu Jin Noh , Bong Hoe Kim , Dae Won Lee
发明人： Yong Ho Seok , Yu Jin Noh , Bong Hoe Kim , Dae Won Lee
IPC分类号： G01R31/08 , H04B7/04 , H04L5/00 , H04W16/28 , H04L25/02
CPC分类号： H04B7/0452 , H04L5/0023 , H04L5/0091 , H04L25/0204 , H04L25/0224 , H04W16/28
摘要： An interference avoidance method performed by an access point (AP) in a wireless local area network (WLAN) system is provided. The method includes: transmitting a training request (TRQ) message for requesting transmission of a sounding frame to a first station which is a target of multi-user multiple input multiple output (MU-MIMO) transmission and a second station which receives data through a direct link during the MU-MIMO transmission; receiving first and second sounding frames respectively transmitted by the first and second stations in response to the TRQ message; estimating a channel by using the first sound frame to determine a beam-forming vector to be used for the MU-MIMO transmission; and performing the MU-MIMO transmission for MU-MIMO transmission target stations including the first station, wherein the beam-forming vector is determined such that the MU-MIMO transmission has a minimum effect on the second station by considering channel information between the AP and the second station and acquired on the basis of the second sounding frame received from the second station.
摘要翻译：提供了一种由无线局域网（WLAN）系统中的接入点（AP）执行的干扰避免方法。该方法包括：向作为多用户多输入多输出（MU-MIMO）传输的目标的第一站发送用于请求发送探测帧的训练请求（TRQ）消息，以及通过一个接收数据的第二站在MU-MIMO传输期间的直接链路; 接收响应于所述TRQ消息由所述第一和第二站分别发送的第一和第二探测帧; 通过使用第一声音帧来估计要用于MU-MIMO传输的波束形成向量的信道; 以及对包括第一站的MU-MIMO传输目标站执行MU-MIMO传输，其中确定波束形成向量，使得MU-MIMO传输对第二站具有最小影响，考虑AP与AP之间的信道信息第二站，并且基于从第二站接收的第二探测帧获取。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式