公开(公告)号：US08885742B2

公开(公告)日：2014-11-11

申请号：US13502102

申请日：2010-10-15

Applicant: Han Byul Seo ,  Eun Sun Kim ,  Byoung Hoon Kim ,  Hak Seong Kim ,  Dae Won Lee

Inventor： Han Byul Seo ,  Eun Sun Kim ,  Byoung Hoon Kim ,  Hak Seong Kim ,  Dae Won Lee

IPC: H04L27/28 ,  H04L5/00 ,  H04L27/26 ,  H04B7/155

CPC classification number: H04L5/0048 ,  H04B7/155 ,  H04L5/0023 ,  H04L27/2607

Abstract: An apparatus and method for transmitting and receiving a demodulation reference signal (DM RS) are disclosed. A method for controlling a base station (BS) to transmit a demodulation reference signal (Demodulation RS or DM RS) in a wireless communication system includes transmitting, by the base station (BS), a DM RS for a relay node (RN) to the relay node (RN) through a specific backhaul subframe to which an extended cyclic prefix (CP) is applied. The DM RS is transmitted over two resource elements (REs) of individual subcarriers having subcarrier frequency indexes 2, 5, 8 and 11 in a frequency axis within a second slot of the specific backhaul subframe.

Abstract translation: 公开了一种用于发送和接收解调参考信号（DM RS）的装置和方法。 用于控制在无线通信系统中发送解调参考信号（解调RS或DM RS）的基站（BS）的方法包括：由基站（BS）向中继节点（RN）发送用于中继节点（RN）的DM RS 中继节点（RN）通过应用了扩展循环前缀（CP）的特定回程子帧。 在特定回程子帧的第二时隙内的频率轴上，通过具有子载波频率索引2,5,8和11的各个子载波的两个资源元素（RE）发送DM RS。

公开(公告)号：US08879490B2

公开(公告)日：2014-11-04

申请号：US13505388

申请日：2011-06-30

Applicant: Dae Won Lee ,  Byeong Woo Kang ,  Yu Jin Noh ,  Yong Ho Seok ,  Dong Wook Roh

Inventor： Dae Won Lee ,  Byeong Woo Kang ,  Yu Jin Noh ,  Yong Ho Seok ,  Dong Wook Roh

IPC: H04W4/00 ,  H04L1/00 ,  H04L1/06 ,  H04L27/26 ,  H04B7/04 ,  H04W84/12

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08867394B2

公开(公告)日：2014-10-21

申请号：US13517951

申请日：2010-11-04

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: G01R31/08 ,  H04B7/04 ,  H04L5/00 ,  H04W16/28 ,  H04L25/02

CPC classification number: H04B7/0452 ,  H04L5/0023 ,  H04L5/0091 ,  H04L25/0204 ,  H04L25/0224 ,  H04W16/28

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08842515B2

公开(公告)日：2014-09-23

申请号：US13394546

申请日：2010-09-07

Applicant: Dae Won Lee ,  Seung Hee Han ,  Ki Jun Kim ,  Joon Kui Ahn

Inventor： Dae Won Lee ,  Seung Hee Han ,  Ki Jun Kim ,  Joon Kui Ahn

IPC: H04J11/00 ,  H04J13/00 ,  H04J13/18 ,  H04L5/00

CPC classification number: H04L5/0048 ,  H04J13/0048 ,  H04J13/18 ,  H04L5/0007

Abstract: A base station apparatus for transmitting a reference signal in a wireless communication system is provided in which a processor generates the same sequence for resource elements (REs) allocated to each layer for reference signal transmission and spreads or covers Walsh codes for a user equipment—specific reference signal sequence such that sequences generated for the resource elements can be orthogonal to each other on a time axis. The Walsh code spreading or covering by the processor is applied on a frequency axis based on a plurality of resource blocks (RBs) or based on a pair of resource blocks such that mutually different sequences having mutually different sequence values can be mapped between resource blocks or between pairs of resource blocks. A transmission module transmits the reference signal, to which the generated reference signal sequence is applied to user equipment via each layer.

Abstract translation: 提供了一种用于在无线通信系统中发送参考信号的基站装置，其中处理器为分配给每个层的资源元素（RE）生成相同的序列用于参考信号传输，并扩展或覆盖针对用户设备特定的Walsh码 参考信号序列，使得为资源元素生成的序列可以在时间轴上彼此正交。 基于多个资源块（RB）或基于一对资源块在频率轴上施加由处理器扩展或覆盖的沃尔什码，使得具有相互不同的序列值的彼此不同的序列可以被映射到资源块或 在资源块之间。 传输模块经由每个层发送所生成的参考信号序列被应用于用户设备的参考信号。

公开(公告)号：US08787278B2

公开(公告)日：2014-07-22

申请号：US13165711

申请日：2011-06-21

Applicant: Dae Won Lee ,  Young Woo Yun ,  Ki Jun Kim ,  Suk Hyon Yoon ,  Joon Kui Ahn ,  Dong Youn Seo ,  Eun Sun Kim

Inventor： Dae Won Lee ,  Young Woo Yun ,  Ki Jun Kim ,  Suk Hyon Yoon ,  Joon Kui Ahn ,  Dong Youn Seo ,  Eun Sun Kim

IPC: H04W4/00

CPC classification number: H04L5/0053 ,  H04L5/0007 ,  H04L5/0039 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/0058 ,  H04L5/0091 ,  H04L47/10 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/121 ,  H04W72/1289 ,  H04W88/02

Abstract: A resource allocation method and a method for transmitting resource allocation information in a mobile communication system are disclosed. That is, a LVRB (PRB) and a DVRB which are the units of a scheduling resource are defined and a resource allocation method and a method for transmitting resource allocation information using the same are disclosed. In the LVRB, a part bitmap scheduling method using a LVRB set is suggested and a method for constructing resource allocation information using the same is suggested. In the DVRB, a method for defining the DVRB using PRBs in a subframe is suggested and a method for constructing resource allocation information using the same when scheduling is performed using the DVRB constructed by the defined method is suggested. In order to prevent interference and collision from occurring due to the complete matching of the DVRBs in respective cells, a method using different DVRBs in the respective cells is suggested.

Abstract translation: 公开了一种在移动通信系统中发送资源分配信息的资源分配方法和方法。 也就是说，定义作为调度资源的单位的LVRB（PRB）和DVRB，并且公开了使用该资源分配方法和资源分配信息的方法。 在LVRB中，提出了使用LVRB集合的部分位图调度方法，并提出了使用该方法构建资源分配信息的方法。 在DVRB中，提出了一种在子帧中使用PRB定义DVRB的方法，并且提出了使用由定义的方法构造的DVRB来执行调度时使用该资源分配信息的方法。 为了防止由于各个小区中的DVRB的完全匹配而发生的干扰和冲突，建议在各个小区中使用不同的DVRB的方法。

公开(公告)号：US08767650B2

公开(公告)日：2014-07-01

申请号：US13295987

申请日：2011-11-14

Applicant: Dae Won Lee ,  Bong Hoe Kim ,  Young Woo Yun ,  Ki Jun Kim ,  Dong Wook Roh ,  Suk Hyon Yoon ,  Joon Kui Ahn ,  Dong Youn Seo ,  Hak Seong Kim ,  Jung Hoon Lee ,  Eun Sun Kim ,  Sung Duk Choi

Inventor： Dae Won Lee ,  Bong Hoe Kim ,  Young Woo Yun ,  Ki Jun Kim ,  Dong Wook Roh ,  Suk Hyon Yoon ,  Joon Kui Ahn ,  Dong Youn Seo ,  Hak Seong Kim ,  Jung Hoon Lee ,  Eun Sun Kim ,  Sung Duk Choi

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04B7/0413 ,  H04L1/06 ,  H04L1/1671 ,  H04L1/1861 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0055 ,  H04L47/10 ,  H04W28/04 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/0413

Abstract: A method for transmitting information of resources for use in transmission of ACK/NACK signals in a mobile communication system is disclosed. An example method for receiving ACK/NACK signals ina mobile communication system is also disclosed. When resources for transmission of data and resources for transmission of control information of the data are scheduled through virtual unit resources, the method identifies information of resources for receiving an ACK/NACK signal for transmission data mapped to information of at least one of a virtual unit resource allocated to the transmission data and a virtual unit resource allocated to control information of the transmission data, and receives the ACK/NACK signal for the transmission data through the information of resources for receiving the ACK/NACK signal.

Abstract translation: 公开了一种在移动通信系统中发送用于ACK / NACK信号的传输的资源信息的方法。 还公开了一种用于在移动通信系统中接收ACK / NACK信号的示例性方法。 当通过虚拟单元资源调度用于传输数据和资源的控制信息的资源的资源时，该方法识别用于接收映射到虚拟单元中的至少一个的信息的用于发送数据的ACK / NACK信号的资源的信息 分配给发送数据的资源和分配给控制发送数据的信息的虚拟单元资源，并通过用于接收ACK / NACK信号的资源信息，接收发送数据的ACK / NACK信号。

公开(公告)号：US08699442B2

公开(公告)日：2014-04-15

申请号：US13505409

申请日：2011-06-28

Applicant: Yu Jin Noh ,  Byeong Woo Kang ,  Dae Won Lee ,  Yong Ho Seok

Inventor： Yu Jin Noh ,  Byeong Woo Kang ,  Dae Won Lee ,  Yong Ho Seok

IPC: H04W4/00 ,  H04J3/16

CPC classification number: H04W72/0446 ,  H04B7/0452 ,  H04W28/20 ,  H04W72/04 ,  H04W72/0406 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

Abstract: A method of transmitting a data frame in a wireless local area network is provided. The method includes TXOP the step of: obtaining a transmission opportunity (TXOP) indicating a time interval during which a transmitter has a right to transmit at least one data frame and an available bandwidth for the TXOP and sequentially transmitting a plurality of data frames to at least one receiver during the TXOP, wherein a bandwidth of a subsequent data frame of the plurality of data frames is same to or narrower than a bandwidth of a preceding data frame of the plurality of data frames which is last previously transmitted before the subsequent data frame.

Abstract translation: 提供了一种在无线局域网中发送数据帧的方法。 该方法包括以下步骤：获得指示发送机具有发送至少一个数据帧的权利和TXOP的可用带宽的时间间隔的发送机会（TXOP），并且将多个数据帧顺序发送到 所述TXOP期间的至少一个接收机，其中所述多个数据帧中的后续数据帧的带宽与所述多个数据帧中的先前数据帧的带宽相同或更小，所述先前数据帧的最后先前在所述后续数据帧之前传输 。

公开(公告)号：US08699314B2

公开(公告)日：2014-04-15

申请号：US13147076

申请日：2010-02-01

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

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

IPC: H04J11/00 ,  H04W4/00

CPC classification number: H04B7/0456 ,  H04B7/0413 ,  H04L1/0071 ,  H04L5/0044 ,  H04L27/2626 ,  H04W72/04

Abstract: A method of allocating resources for transmitting a signal in a Multiple-Input Multiple-Output (MIMO) wireless communication system is disclosed. The method includes allocating one or more spatial resources of a plurality of spatial resources corresponding to first Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbols to a first transport block, allocating one or more other spatial resources of the plurality of spatial resources corresponding to the first SC-FDMA symbols to a second transport block, and allocating spatial resources corresponding to second SC-FDMA symbols to the first transport block and the second transport block.

Abstract translation: 公开了一种在多输入多输出（MIMO）无线通信系统中分配用于发送信号的资源的方法。 该方法包括将与第一单载波频分多址（SC-FDMA）符号相对应的多个空间资源的一个或多个空间资源分配给第一传输块，分配多个空间资源中的一个或多个其他空间资源 对应于第一SC-FDMA符号到第二传输块，以及将与第二SC-FDMA符号相对应的空间资源分配给第一传输块和第二传输块。

公开(公告)号：US08634336B2

公开(公告)日：2014-01-21

申请号：US13395351

申请日：2011-08-02

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

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

IPC: H04W52/02

CPC classification number: H04W52/0235 ,  H04B7/0452 ,  H04L69/323 ,  H04W52/02 ,  H04W52/0212 ,  H04W52/0219 ,  H04W52/0222 ,  H04W74/0808 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/444

Abstract: A method of power saving in a wireless local area network is provided. The method, performed by a wireless device, includes acquiring TXOP (transmission opportunity) from access point (AP), the TXOP indicating an interval of time when the AP has the right to transmit at least one data block for multi user-multiple input multiple output (MU-MIMO) transmission, receiving a power saving indicator from the AP, the power saving indicator indicating whether the AP allows to enter doze state during the TXOP, and entering the doze state until the end of the TXOP if the power saving indicator indicates an allowance of entering the doze state.

Abstract translation: 提供了一种在无线局域网中省电的方法。 由无线设备执行的方法包括从接入点（AP）获取TXOP（传输机会），TXOP指示当AP有权发送用于多用户多输入多个的至少一个数据块的时间间隔 输出（MU-MIMO）传输，从AP接收功率节省指示符，功率指示器指示AP是否允许在TXOP期间进入打盹状态，并且进入打盹状态直到TXOP的结束，如果节电指示符 表示进入打盹状态的津贴。

公开(公告)号：US08634319B2

公开(公告)日：2014-01-21

申请号：US13139484

申请日：2010-09-27

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

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

IPC: H04L12/26

CPC classification number: H04B7/0697 ,  H04B7/0486 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0689

Abstract: Disclosed is a method whereby a channel quality indicator is fed back by a terminal in a multiple-antenna wireless communication system. More specifically, the method comprises the steps of: receiving reference signals corresponding to a plurality of data streams from a base station; using the reference signals to calculate a channel quality indicator; and transmitting the calculated channel quality indicator to the base station; and, in the step in which the channel quality indicator is calculated, the channel quality indicator is calculated under the assumption that at least one of the reference signals has been transmitted using wither the spatial-multiplexing technique or the transmit diversity technique, depending on the feedback setting of the terminal.

Abstract translation: 公开了一种在多天线无线通信系统中由终端反馈信道质量指示符的方法。 更具体地说，该方法包括以下步骤：从基站接收与多个数据流对应的参考信号; 使用参考信号来计算信道质量指标; 以及将所计算的信道质量指示符发送到所述基站; 并且在计算信道质量指示符的步骤中，在假设已经使用空间复用技术或发射分集技术发送了至少一个参考信号的情况下，根据所述信道质量指示符来计算信道质量指示符 终端的反馈设置。