公开(公告)号：US20120269183A1

公开(公告)日：2012-10-25

申请号：US13500352

申请日：2011-11-23

Applicant: Ill Soo Sohn ,  Yong Ho Seok ,  Kyoung Young Song ,  Dae Won Lee ,  Byeong Woo Kang

Inventor： Ill Soo Sohn ,  Yong Ho Seok ,  Kyoung Young Song ,  Dae Won Lee ,  Byeong Woo Kang

IPC: H04W24/10 ,  H04W84/12

CPC classification number: H04L1/0003 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/06 ,  H04W24/10 ,  H04W72/04

Abstract: A method for reporting channel information in a wireless local area network system is provided. The method includes receiving a data block for requesting a modulation and coding scheme (MCS) feedback from a requesting station, the data block including a data field and a stream indicator indicating a number of at least one spatial stream in the data field; determining, the MCS feedback based on the data block; and, transmitting the MCS feedback to the requesting station, the MCS feedback including a recommended MCS and a recommended stream indicator indicating a number of at least one recommended spatial stream. The number of the at least one recommended spatial stream in the MCS feedback is equal or less than the number of the at least one spatial stream in the data block.

Abstract translation: 提供一种在无线局域网系统中报告信道信息的方法。 该方法包括从请求站接收用于请求调制和编码方案（MCS）反馈的数据块，所述数据块包括指示数据字段中的至少一个空间流的数目的数据字段和流指示符; 确定基于数据块的MCS反馈; 并且向所述请求站发送所述MCS反馈，所述MCS反馈包括推荐的MCS和指示至少一个推荐空间流的数量的推荐流指示符。 MCS反馈中的至少一个推荐空间流的数量等于或小于数据块中的至少一个空间流的数量。

公开(公告)号：US20120230448A1

公开(公告)日：2012-09-13

申请号：US13505382

申请日：2011-04-28

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

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

IPC: H04L27/04 ,  H04W84/12

CPC classification number: H04W72/085 ,  H03M13/23 ,  H03M13/2707 ,  H03M13/356 ,  H03M13/6527 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/0643 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0048 ,  H04L25/0204 ,  H04L27/2628 ,  H04W84/12

Abstract: A method of transmitting data in a wireless local area network is provided. The method includes the steps of: generating a data unit including a MAC (Medium Access Control) header and MSDU (MAC Service Data Unit), generating an encoded data unit by encoding the data unit, generating one or more spatial blocks by dividing the encoded data unit, dividing each of the one or more spatial block into a first block and a second block, generating a first interleaved block and a second interleaved block by interleaving the first block and the second block respectively, generating a first mapped sequence by mapping the first interleaved block into signal constellation, generating a second mapped sequence by mapping the second interleaved block into signal constellation, generating the transmission signal by performing IDFT (Inverse Discrete Fourier Transform) to the first mapped sequence and the second mapped sequence; and transmitting the transmission signal.

Abstract translation: 提供了一种在无线局域网中发送数据的方法。 该方法包括以下步骤：生成包括MAC（媒体访问控制）头部和MSDU（MAC服务数据单元）的数据单元，通过对数据单元进行编码来生成编码数据单元，通过将编码的 数据单元，将所述一个或多个空间块中的每一个划分为第一块和第二块，分别通过交织所述第一块和所述第二块来产生第一交织块和第二交织块，通过映射所述第一块和所述第二块来生成第一映射序列 将第一交错块转换为信号星座图，通过将第二交织块映射到信号星座图中产生第二映射序列，通过对第一映射序列和第二映射序列执行IDFT（逆离散傅立叶变换）生成发送信号; 并发送发送信号。

公开(公告)号：US20120230290A1

公开(公告)日：2012-09-13

申请号：US13509489

申请日：2011-01-12

Applicant: In Kwon Seo ,  Dae Won Lee ,  Ki Jun Kim

Inventor： In Kwon Seo ,  Dae Won Lee ,  Ki Jun Kim

IPC: H04W72/06 ,  H04W4/00

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04B7/0626 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0057 ,  H04W72/0413 ,  H04W88/02 ,  H04W88/08

Abstract: A method and an apparatus for providing channel quality information in a wireless communication system are disclosed. According to one embodiment of the invention, a method for transmitting channel quality information includes receiving a downlink signal, calculating a channel quality information index for the received downlink signal at least based on a number of resource elements for a physical downlink shared channel (PDSCH), wherein the number of resource elements for the PDSCH is determined at least based on an overhead of a demodulation reference signal (DMRS), and transmitting the calculated channel quality information index.

Abstract translation: 公开了一种用于在无线通信系统中提供信道质量信息的方法和装置。 根据本发明的一个实施例，一种用于发送信道质量信息的方法包括：接收下行链路信号，至少基于用于物理下行链路共享信道（PDSCH）的资源元素的数量来计算所接收的下行链路信号的信道质量信息索引， 其中，至少基于解调参考信号（DMRS）的开销确定用于PDSCH的资源元素的数量，并且发送所计算的信道质量信息索引。

公开(公告)号：US20120218981A1

公开(公告)日：2012-08-30

申请号：US13467636

申请日：2012-05-09

Applicant: Dae Won LEE ,  Ill Soo SOHN ,  Yong Ho SEOK

Inventor： Dae Won LEE ,  Ill Soo SOHN ,  Yong Ho SEOK

IPC: H04W84/12

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

Abstract: A channel sounding method in a wireless local area network (WLAN) system is provided. The method, performed by a transmitter, includes transmitting a null data packet announcement (NDPA) frame to a receiver to initiate a channel sounding procedure; transmitting a null data packet (NDP) to the receiver and receiving a feedback frame. The feedback frame includes a plurality of segment frames and a channel feedback report. The channel feedback report is split into a plurality of feedback segments. Each of the plurality of feedback segments is respectively included in each of the plurality of segment frames. The each of the plurality of segment frames includes a first-segment subfield indicating whether the each of the plurality of feedback segment included is a first segment and a remaining-segment subfield indicating the number of remaining feedback segments.

公开(公告)号：US20120176885A1

公开(公告)日：2012-07-12

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: H04W4/00 ,  H04W72/04

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

Abstract: Disclosed are a method and apparatus for transmitting a reference signal. In a base station apparatus for transmitting a reference signal in a wireless communication system, a processor generates the same scrambling sequence for resource elements (REs) allocated to each layer for reference signal transmission, and spreads or covers Walsh codes such that scrambling sequences generated for the resource elements can be orthogonal to each other on a time axis, in order to generate a reference signal sequence. Here, the Walsh code spreading or covering by the processor is applied on a frequency axis on the basis of a plurality of resource blocks (RBs) or on the basis of 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 thus-generated reference signal sequence is applied, to user equipment via each layer.

Abstract translation: 公开了一种用于发送参考信号的方法和装置。 在用于在无线通信系统中发送参考信号的基站装置中，处理器为分配给每个层的资源元素（RE）产生相同的加扰序列用于参考信号传输，并扩展或覆盖沃尔什码，使得为 资源元素可以在时间轴上彼此正交，以便生成参考信号序列。 这里，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相互不同的序列 可以在资源块之间或资源块对之间进行映射。 传输模块经由每个层将用于生成的参考信号序列的参考信号发送给用户设备。

公开(公告)号：US20120136912A1

公开(公告)日：2012-05-31

申请号：US13388662

申请日：2010-08-19

Applicant: Hyung Tae Kim ,  Dae Won Lee ,  Han Byul Seo ,  Byoung Hoon Kim ,  Ki Jun KIM

Inventor： Hyung Tae Kim ,  Dae Won Lee ,  Han Byul Seo ,  Byoung Hoon Kim ,  Ki Jun KIM

IPC: G06F7/523 ,  H04L27/00 ,  G06F7/50

CPC classification number: H04B7/024 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0639

Abstract: An apparatus and method for generating a codebook in a wireless communication system are disclosed. The codebook generation method includes determining one or more dominant singular vectors in a channel matrix for antennas and setting each of the dominant singular vectors as a random non-zero vector, generating a first codebook having codewords, a minimum distance between the code-words being maximized, using the random non-zero vector in a region that includes unit norm vectors each having a Euclidean distance to each of the dominant singular vectors, equal to or less than a predetermined value, generating a second codebook corresponding to a unitary matrix that rotates the random non-zero vector toward the dominant singular vectors, and generating a final codebook using the first and second codebooks.

Abstract translation: 公开了一种用于在无线通信系统中生成码本的装置和方法。 码本生成方法包括确定用于天线的信道矩阵中的一个或多个主要奇异向量，并将每个主要奇异向量设置为随机非零向量，生成具有码字的第一码本，码字之间的最小距离为 最大化，使用包括单位范数向量的区域中的随机非零向量，每个单位范数向量具有等于或小于预定值的每个主要奇异向量的欧几里德距离，生成对应于旋转的酉矩阵的第二码本 朝向主要奇异向量的随机非零向量，以及使用第一和第二码本生成最终码本。

公开(公告)号：US08189699B2

公开(公告)日：2012-05-29

申请号：US12443179

申请日：2007-09-28

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

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

IPC: H04L27/28

CPC classification number: H04L5/0053 ,  H04L1/001 ,  H04L1/0026 ,  H04L1/08 ,  H04L1/12 ,  H04L1/1664 ,  H04L1/1858 ,  H04L5/0007 ,  H04L5/0055

Abstract: A method for transmitting an ACK/NACK signal and a method for establishing the signal transmission are disclosed. A system for the method determines whether the ACK/NACK signal is repeatedly transmitted or not according to channel environments of a user, and transmits the ACK/NACK signal according to the determined result within a single TTI. Areas unused for transmitting the ACK/NACK signal are allocated for data, resulting in an increased reception reliability of the ACK/NACK signal.

Abstract translation: 公开了一种用于发送ACK / NACK信号的方法和用于建立信号传输的方法。 该方法的系统根据用户的信道环境确定ACK / NACK信号是否重复发送，并且根据在单个TTI内的确定结果来发送ACK / NACK信号。 分配用于发送ACK / NACK信号的区域用于数据，导致ACK / NACK信号的接收可靠性增加。

公开(公告)号：US20120093197A1

公开(公告)日：2012-04-19

申请号：US13377456

申请日：2010-09-30

Applicant: Min Gyu Kim ,  Dae Won Lee ,  Dong Wook Roh ,  Joon Kui Ahn ,  Suck Chel Yang ,  Ki Jun Kim ,  Dong Youn Seo

Inventor： Min Gyu Kim ,  Dae Won Lee ,  Dong Wook Roh ,  Joon Kui Ahn ,  Suck Chel Yang ,  Ki Jun Kim ,  Dong Youn Seo

IPC: H04B1/00

CPC classification number: H04L5/0053 ,  H03M13/13 ,  H03M13/275 ,  H03M13/31 ,  H04L1/0041 ,  H04L1/04 ,  H04L5/0057

Abstract: This document is related to a wireless communication system, and more particularly to a method and an apparatus for transmitting encoded signals with frequency hopping environment. A method of transmitting signals by a user equipment (UE) comprises: encoding an input signal having a length of (A) bits by using (A) basis sequences having a length of 20 bits to output an encoded signal having a length of 20 bits, wherein (A) is a natural number less than 14; mapping the encoded signal having the length of 20 bits to two different resource regions, wherein the first 10 bits of the encoded signal are mapped to a first resource region, and the second 10 bits of the encoded signal are mapped to a second resource region; and transmitting the resource-mapped signals to a Node B, wherein the encoded signal or the (A) basis sequences are cyclic shifted with a value of (x) before mapping the encoded signal to the two different resource regions, wherein (x) is a natural number less than 20.

Abstract translation: 本文件涉及无线通信系统，更具体地涉及一种用跳频环境发送编码信号的方法和装置。 一种由用户设备（UE）发送信号的方法包括：通过使用（A）具有20比特长度的基本序列来编码具有（A）比特长度的输入信号，以输出具有20比特长度的编码信号 ，其中（A）是小于14的自然数; 将具有20比特长度的编码信号映射到两个不同的资源区域，其中编码信号的前10位被映射到第一资源区域，并且编码信号的第二个10比特被映射到第二资源区域; 并且将所述资源映射信号发送到节点B，其中，在将所述编码信号映射到所述两个不同的资源区域之前，所述编码信号或所述（A）基本序列以（x）的值循环移位，其中（x）是 自然数小于20。

公开(公告)号：US20120087346A1

公开(公告)日：2012-04-12

申请号：US13375461

申请日：2010-06-29

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

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

IPC: H04W72/04

CPC classification number: H04B7/0434 ,  H04B7/0473

Abstract: The present application discloses a method for transmitting a downlink signal in a multi-antenna wireless communication system. In detail, the method comprises: a step of mapping a signal of a codeword domain to a signal of a layer domain; a step of mapping the signal of the layer domain to a signal of a virtual antenna port domain using a precoding matrix; and a step of transmitting the signal of the virtual antenna port domain to a physical antenna port, wherein the precoding matrix is changed in a channel measurement unit, and the signal of the layer domain is layer-permutated in the channel measurement unit. Preferably, the channel measurement unit is constituted by one or more resource blocks (RBs).

Abstract translation: 本申请公开了一种用于在多天线无线通信系统中发送下行链路信号的方法。 详细地，该方法包括：将码字域的信号映射到层域的信号的步骤; 使用预编码矩阵将层域的信号映射到虚拟天线端口域的信号的步骤; 以及将所述虚拟天线端口域的信号发送到物理天线端口的步骤，其中，所述预编码矩阵在信道测量单元中改变，并且所述层域的信号在所述信道测量单元中被层排列。 优选地，信道测量单元由一个或多个资源块（RB）构成。

公开(公告)号：US20120014242A1

公开(公告)日：2012-01-19

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: H04W72/04

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。