公开(公告)号：US20060245512A1

公开(公告)日：2006-11-02

申请号：US11304462

申请日：2005-12-15

申请人： Seok-Wan Rha ,  Young-Hoon Kwon

发明人： Seok-Wan Rha ,  Young-Hoon Kwon

IPC分类号： H04L1/02

CPC分类号： H04W52/04 ,  H04B7/0617 ,  H04B7/0632 ,  H04B7/0689 ,  H04L1/203

摘要： A transmitter and transmission method for preventing a call failure using a system power value, caused by rapidly increasing transmit power against a large phase mismatch occurring before a phase mismatch correction cycle elapses in a smart-antenna communication system. In the transmitter and transmission method, if the system power value is higher than a power threshold, a radiation pattern similar to a common beam channel pattern is created.

摘要翻译： 一种用于通过在智能天线通信系统中经过相位失配校正周期之前发生的大相位失配的快速增加的发射功率而使用系统功率值来防止呼叫失败的发射机和发射方法。 在发射机和发射方法中，如果系统功率值高于功率阈值，则产生类似于公共波束信道模式的辐射图。

公开(公告)号：US08139548B2

公开(公告)日：2012-03-20

申请号：US11851448

申请日：2007-09-07

申请人： Chi-Hyun Park ,  Young-Hoon Kwon ,  Sang-Boh Yun

发明人： Chi-Hyun Park ,  Young-Hoon Kwon ,  Sang-Boh Yun

IPC分类号： H04J3/00

CPC分类号： H04B1/126

摘要： A method and apparatus for removing interference from a UpLink (UL) signal in a Time Division Duplex (TDD) system are provided. The method includes determining whether a section for receiving an UpLink (UL) signal from the MS overlaps with sections for sending a DownLink (DL) signal of neighbor BSs in service, the neighbor BSs sending the DL signal to another MS, when the UL signal section overlaps with the DL sections of the neighbor BSs, detecting DL transmit signal information from the neighbor BSs transmitting in the overlapping sections, and removing interference from the UL signal using the detected transmit signal information. Accordingly, the accuracy of detecting the signal from the MS can be raised without having to adopt the complex resource allocation scheme to avoid the interference of the neighbor BSs.

摘要翻译： 提供了一种用于在时分双工（TDD）系统中从UpLink（UL）信号中去除干扰的方法和装置。 该方法包括确定用于从MS重叠的用于接收上行链路（UL）信号的部分是否与用于发送服务中的相邻BS的下行链路（DL）信号的部分重叠，所述相邻BS将DL信号发送到另一个MS，当UL信号 部分与相邻BS的DL部分重叠，从在重叠部分中发送的相邻BS检测DL发送信号信息，以及使用检测到的发送信号信息去除来自UL信号的干扰。 因此，可以提高检测来自MS的信号的准确性，而不必采用复杂的资源分配方案来避免相邻BS的干扰。

公开(公告)号：US07995677B2

公开(公告)日：2011-08-09

申请号：US12157627

申请日：2008-06-12

申请人： Jong-Ho Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Sung-Yoon Jung ,  Soong-Yoon Choi ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim

发明人： Jong-Ho Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Sung-Yoon Jung ,  Soong-Yoon Choi ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim

IPC分类号： H03K9/00

CPC分类号： H04L25/03012 ,  H04L1/0631 ,  H04L1/0668 ,  H04L25/0204 ,  H04L25/0242 ,  H04L25/0246 ,  H04L25/067

摘要： An apparatus and method for detecting a signal in a receiver by maximum likelihood (ML) are provided, in which symbols are detected according to the number of transmit antennas of a transmitter and a modulation scheme, channels are estimated, an equivalent channel matrix corresponding to the estimated channels is determined, a permuted equivalent channel matrix is determined by multiplying the equivalent channel matrix by a predetermined permutation matrix, the permuted equivalent channel matrix is QR decomposed, a hard decision is performed on predetermined symbols among the detected symbols using a received signal resulting from the QR decomposition, and the log likelihood ratios (LLRs) of the hard-decided symbols are determined.

摘要翻译： 提供一种用于通过最大似然（ML）检测接收机中的信号的装置和方法，其中根据发射机的发射天线的数量和调制方案检测符号，估计信道，对应于 确定估计的信道，通过将等效信道矩阵乘以预定的置换矩阵来确定置换的等效信道矩阵，将经排列的等效信道矩阵QR分解，使用接收信号对检测符号中的预定符号执行硬判决 由QR分解产生，并确定硬判决符号的对数似然比（LLR）。

公开(公告)号：US20080062909A1

公开(公告)日：2008-03-13

申请号：US11853967

申请日：2007-09-12

申请人： Oh-Soon Shin ,  Jong-Hyeuk Lee ,  Joo-Hyun Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon

发明人： Oh-Soon Shin ,  Jong-Hyeuk Lee ,  Joo-Hyun Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon

IPC分类号： H04J1/10

CPC分类号： H04L1/0041 ,  H04B7/022 ,  H04B7/026 ,  H04L1/0045 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/0618 ,  H04L25/03292 ,  H04L27/2626 ,  H04L27/2647 ,  H04L2001/0097

摘要： An apparatus and method for performing distributed spatial multiplexing and distributed spatial diversity in a multi-hop relay system are provided. In the multi-hop relay system, a transmitter includes an outer coder for performing outer coding on transmission data, an outer interleaver for interleaving data received from the outer coder, an inner coder for dividing data received from the outer interleaver into a plurality of frames and performing inner coding on the divided frames, and a transmitting unit for transmitting hierarchically coded frames received from the inner coder to respective Relay Stations (RSs).

摘要翻译： 提供了一种用于在多跳中继系统中执行分布式空间复用和分布式空间分集的装置和方法。 在多跳中继系统中，发射机包括用于对发送数据执行外部编码的外部编码器，用于对从外部编码器接收的数据进行交织的外部交织器，将从外部交织器接收的数据分割成多个帧的内部编码器 以及对分割帧执行内部编码，以及发送单元，用于将从内部编码器接收的分层编码帧发送到相应的中继站（RS）。

公开(公告)号：US20070263569A1

公开(公告)日：2007-11-15

申请号：US11746459

申请日：2007-05-09

申请人： Soong-Yoon CHOI ,  Kyung-Joo Suh ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Jong-In Kim ,  Yong-Seok Kim ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim

发明人： Soong-Yoon CHOI ,  Kyung-Joo Suh ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Jong-In Kim ,  Yong-Seok Kim ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim

IPC分类号： H04Q7/00

CPC分类号： H04B7/0851 ,  H04L1/0656 ,  H04L5/0046 ,  H04L5/0053 ,  H04L5/1453

摘要： An apparatus and method for lowering a tree searching complexity in a Spatial Multiplexing (SM) Multiple Input Multiple Output (MIMO) antenna system are provided. A transmitting apparatus includes a generator for generating a plurality of transmit streams by spatial-multiplexing a transmit data, a determiner for determining modulation schemes to be applied to the plurality of the transmit streams respectively and a modulator for modulating the plurality of the transmit streams using at least two modulation schemes under control of the determiner. The receiver detects the signals by allocating the modulation scheme of the lowest order to the upper tree level.

摘要翻译： 提供了一种用于降低空间复用（MIMO）多输入多输出（MIMO）天线系统中的树搜索复杂度的装置和方法。 发送装置包括：发生器，用于通过空间复用发送数据来产生多个发送流;确定器，用于确定分别应用于多个发送流的调制方案;以及调制器，用于使用 在确定器的控制下的至少两个调制方案。 接收机通过将最低阶的调制方案分配给上层树来检测信号。

公开(公告)号：US20070213098A1

公开(公告)日：2007-09-13

申请号：US11708657

申请日：2007-02-20

申请人： Sang-Hoon Sung ,  Yong-Seok Kim ,  Young-Hoon Kwon

发明人： Sang-Hoon Sung ,  Yong-Seok Kim ,  Young-Hoon Kwon

IPC分类号： H04M1/00

CPC分类号： H04W16/28

摘要： An apparatus and a method for transmitting a signal in a wireless communication system are disclosed. A method for transmitting a signal by a Base Station (BS) in a wireless communication system includes estimating an uplink channel using a signal received from a Mobile Station (MS), determining a beam coefficient for each of sub-carriers constituting a predetermined frequency band based on the estimated uplink channel, forming a beam for the predetermined frequency band by multiplying each sub-carrier by the beam coefficient, and transmitting a signal using the formed beam.

摘要翻译： 公开了一种用于在无线通信系统中发送信号的装置和方法。 一种用于在无线通信系统中由基站（BS）发送信号的方法包括使用从移动站（MS）接收的信号来估计上行链路信道，确定构成预定频带的每个子载波的波束系数 基于估计的上行链路信道，通过将每个子载波乘以波束系数来形成用于预定频带的波束，并且使用形成的波束来发送信号。

公开(公告)号：US20070099665A1

公开(公告)日：2007-05-03

申请号：US11545240

申请日：2006-10-10

申请人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sang-Hoon Sung

发明人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sang-Hoon Sung

IPC分类号： H04B1/38

CPC分类号： H04B1/1027

摘要： An apparatus and method for improving the reception performance of a Mobile Station (MS) in a multiple antenna system are provided. In an apparatus of a Base Station (BS) in the multiple antenna system, upon receipt of a request for interference cancellation for a first MS serviced by a neighbor BS, a channel estimator estimates a channel from the first MS and a channel from a second MS serviced by the BS. A beam coefficient generator generates a first beam coefficient based on channel estimates of the first and second MSs and a second beam coefficient based on the channel estimate of the second MS. An interference cancellation decider determines whether to perform interference cancellation for the first MS using the first and second beam coefficients.

摘要翻译： 提供了一种用于提高多天线系统中的移动站（MS）的接收性能的装置和方法。 在多天线系统中的基站（BS）的装置中，当接收到由相邻BS服务的第一MS的干扰消除请求时，信道估计器估计来自第一MS的信道和来自第二MS的信道 MS由BS服务。 波束系数发生器基于第一和第二MS的信道估计生成第一波束系数，并且基于第二MS的信道估计产生第二波束系数。 干扰消除决定器使用第一和第二波束系数来确定是否对第一MS进行干扰消除。

公开(公告)号：US08345806B2

公开(公告)日：2013-01-01

申请号：US12154954

申请日：2008-05-28

申请人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Jong-Ho Lee ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim ,  Ki-Hwan Jeon

发明人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Jong-Ho Lee ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim ,  Ki-Hwan Jeon

IPC分类号： H04B7/10

CPC分类号： H04L25/0206

摘要： An apparatus and a method are provided for detecting N number of TX signals in a MIMO wireless communication system. The apparatus includes an RF processor, a channel estimator, and a signal detector. The RF processor converts signals, received through multiple antennas, into baseband signals. The channel estimator estimates channel information of the respective antennas by using the received signals. The signal detector arranges the baseband signals of the respective antennas on the basis of the channel information, calculates a threshold value of each stage, and selects symbols with a cumulative metric smaller than or equal to the threshold value as candidates at each stage, to detect a TX signal vector with N number of symbols.

摘要翻译： 提供了一种用于在MIMO无线通信系统中检测N个TX信号的装置和方法。 该装置包括RF处理器，信道估计器和信号检测器。 RF处理器将通过多个天线接收的信号转换为基带信号。 信道估计器通过使用所接收的信号来估计各个天线的信道信息。 信号检测器基于信道信息布置各个天线的基带信号，计算每一级的阈值，并且选择具有小于或等于阈值的累积度量的符号作为每个级的候选，以检测 具有N个符号的TX信号向量。

公开(公告)号：US08060115B2

公开(公告)日：2011-11-15

申请号：US12199492

申请日：2008-08-27

申请人： Suk-Seung Hwang ,  Joo-Hyun Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon

发明人： Suk-Seung Hwang ,  Joo-Hyun Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon

IPC分类号： H04W88/02

CPC分类号： G01S5/0205 ,  G01S5/0018 ,  G01S5/0273 ,  G01S5/10 ,  H04B7/155 ,  H04B7/2606 ,  H04L27/2647 ,  H04W56/00 ,  H04W64/00

摘要： An apparatus and method for location estimation in a wireless communication system are provided. The method includes identifying if a received at least one signal passed through at least one repeater, when the received at least one signal is identified as having passed though at least one repeater, measuring a Base Station (BS) basis delay time and calculating a repeater basis delay time using the measured BS basis delay time, and estimating a location of the MS using the repeater basis delay time.

摘要翻译： 提供了一种用于无线通信系统中的位置估计的装置和方法。 该方法包括：当所接收的至少一个信号被识别为已经通过至少一个中继器时，识别接收到的至少一个信号是否经过至少一个中继器，测量基站（BS）延迟时间并计算中继器 使用所测量的BS基本延迟时间的基准延迟时间，以及使用中继器基础延迟时间估计MS的位置。

公开(公告)号：US07907915B2

公开(公告)日：2011-03-15

申请号：US12491774

申请日：2009-06-25

申请人： Jae-Hee Cho ,  In-Seok Hwang ,  Jang-Hoon Yang ,  Hoon Huh ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Young-Hoon Kwon

发明人： Jae-Hee Cho ,  In-Seok Hwang ,  Jang-Hoon Yang ,  Hoon Huh ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Young-Hoon Kwon

IPC分类号： H04B7/00

CPC分类号： H04W52/28 ,  H04W52/08 ,  H04W52/10

摘要： An apparatus and method for changing an uplink power control scheme according to mobile status in a TDD mobile communication system are provided. The communication system comprises a Subscriber Station (SS) for transmitting a power control change request message to a Base Station (BS) to change the power control scheme, and the BS for deciding to change the power control scheme between the open loop power control and closed loop power control, and transmitting a power control change response message the SS including the decided power control scheme.

摘要翻译： 提供了一种用于在TDD移动通信系统中根据移动状态改变上行链路功率控制方案的装置和方法。 通信系统包括用于向基站（BS）发送功率控制改变请求消息以改变功率控制方案的用户站（SS），以及用于决定改变开环功率控制和 闭环功率控制，以及发送功率控制变化响应消息，SS包括决定的功率控制方案。