公开(公告)号：US07558535B2

公开(公告)日：2009-07-07

申请号：US11207396

申请日：2005-08-19

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. A subscriber station transmits to a base station a power control change request message including information about a requested power control scheme. Upon receipt of the power control change request message, the base station selects a power control scheme for the uplink of the subscriber station and transmits to the subscriber station a power control change command message including information about the selected power control scheme. The subscriber station extracts, upon receipt of the power control change command message from the base station, the power control scheme information from the power control change command message and selects a power control scheme according to the extracted information.

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。 用户站向基站发送包括关于所请求的功率控制方案的信息的功率控制改变请求消息。 在接收到功率控制改变请求消息时，基站选择用户站的上行链路的功率控制方案，并向用户台发送包括关于所选择的功率控制方案的信息的功率控制改变命令消息。 用户站在从基站接收到功率控制改变命令消息后，从功率控制改变命令消息中提取功率控制方案信息，并根据所提取的信息选择功率控制方案。

公开(公告)号：US20060040619A1

公开(公告)日：2006-02-23

申请号：US11207396

申请日：2005-08-19

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 ,  H04Q7/20 ,  H04B1/00

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. A subscriber station transmits to a base station a power control change request message including information about a requested power control scheme. Upon receipt of the power control change request message, the base station selects a power control scheme for the uplink of the subscriber station and transmits to the subscriber station a power control change command message including information about the selected power control scheme. The subscriber station extracts, upon receipt of the power control change command message from the base station, the power control scheme information from the power control change command message and selects a power control scheme according to the extracted information.

公开(公告)号：US20090262670A1

公开(公告)日：2009-10-22

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： H04J3/00 ,  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。

公开(公告)号：US20070230609A1

公开(公告)日：2007-10-04

申请号：US11640618

申请日：2006-12-18

申请人： Keun-Chul Hwang ,  Sung-Woo Park ,  Soon-Young Yoon ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Soong-Yoon Choi

发明人： Keun-Chul Hwang ,  Sung-Woo Park ,  Soon-Young Yoon ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Soong-Yoon Choi

IPC分类号： H04L1/02

CPC分类号： H04L1/005 ,  H04L25/03171 ,  H04L25/03318

摘要： An iterative detection and decoding method in a Multiple Input Multiple Output (MIMO) system includes detecting entire MIMO nodes to generate soft decision values; decoding a first soft decision value among the soft decision values; determining whether to perform an iterative detection and decoding by measuring reliability of the decoded first decoding signal; generating a soft decision value by performing a redetection of a MIMO node containing the soft decision value, when the decoded soft decision value is iteratively detected and decoded; and decoding a second soft decision value among the soft decision values.

摘要翻译： 多输入多输出（MIMO）系统中的迭代检测和解码方法包括检测整个MIMO节点以产生软判决值; 解码软判决值中的第一软判决值; 通过测量解码的第一解码信号的可靠性来确定是否执行迭代检测和解码; 当解码的软判决值被迭代检测和解码时，通过执行包含软判决值的MIMO节点的重新检测来产生软判决值; 以及对所述软判决值中的第二软判决值进行解码。

公开(公告)号：US20070077928A1

公开(公告)日：2007-04-05

申请号：US11524710

申请日：2006-09-21

申请人： Jong-In Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sang-Hoon Sung

发明人： Jong-In Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sang-Hoon Sung

IPC分类号： H04Q7/20

CPC分类号： H04W36/30

摘要： Disclosed are a handoff system and a handoff method in a communication system with a smart antenna. In a method for performing handoff in a communication system including BSs which have different antenna structures, neighbor BS information including antennas structure information of neighbor BSs is received from a serving BS, a handoff threshold value is set according to the received neighbor BS information, and a difference between pilot strengths of the neighbor BSs and that of the serving BS is compared with the set handoff threshold value to thereby determine whether to perform the handoff.

摘要翻译： 公开了具有智能天线的通信系统中的切换系统和切换方法。 在包括具有不同天线结构的BS的通信系统中执行切换的方法中，从服务BS接收到包括相邻BS的天线结构信息的相邻BS信息，根据所接收到的相邻BS信息设置越区切换阈值， 将相邻BS的导频强度与服务BS的导频强度之间的差与设置的切换阈值进行比较，从而确定是否执行切换。

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：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：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。