公开(公告)号：US20080080405A1

公开(公告)日：2008-04-03

申请号：US11864092

申请日：2007-09-28

申请人： Oh-Soon Shin ,  Sang-Boh Yun ,  Jin-Ghoo Choi

发明人： Oh-Soon Shin ,  Sang-Boh Yun ,  Jin-Ghoo Choi

IPC分类号： H04J3/00 ,  H04Q7/00

CPC分类号： H04B7/265

摘要： An apparatus for bidirectional communication using one or more auxiliary bands in a wireless communication system is provided. A primary band transmitter transmits data over one or more primary bands in a frame. A primary band receiver receives data over the one or more primary bands in the frame. An auxiliary band transmitter transmits data over one or more first auxiliary bands in the frame. An auxiliary band receiver receives data over the one or more first auxiliary bands or over the one or more first auxiliary bands and one or more second auxiliary bands in the frame. Therefore, it is possible to facilitate a low-delay service and to cope with a rapid channel change due to high-speed movement.

摘要翻译： 提供了一种在无线通信系统中使用一个或多个辅助频带的双向通信的装置。 主频带发射机在帧中的一个或多个主频带上发送数据。 主频带接收机通过帧中的一个或多个主频带接收数据。 辅助频带发射机在帧中的一个或多个第一辅助频带上发射数据。 辅助频带接收机通过一个或多个第一辅助频带或者在该帧中的一个或多个第一辅助频带和一个或多个第二辅助频带上接收数据。 因此，可以促进低延迟服务并且能够应对由于高速运动引起的快速频道改变。

公开(公告)号：US20070133416A1

公开(公告)日：2007-06-14

申请号：US11638783

申请日：2006-12-14

申请人： Tae-In Hyon ,  Sang-Boh Yun ,  Hoon Kim

发明人： Tae-In Hyon ,  Sang-Boh Yun ,  Hoon Kim

IPC分类号： H04J1/16 ,  H04J3/16

CPC分类号： H04L47/12 ,  H04L1/1607 ,  H04L1/1867 ,  H04L47/10 ,  H04L47/14 ,  H04L47/193 ,  H04L47/2466 ,  H04W28/10 ,  H04W80/06

摘要： A transport control method in a transmitter of a wireless communication system, which includes a transport layer having a congestion control function of transmitting data in a segment basis and retransmitting a segment if an RTO timer expires before receipt of an ACK segment is received in response to transmission of the segment and a MAC layer for detecting receipt of an ACK segment through a wireless link and transporting the detected ACK segment to the transport layer, includes temporarily storing received ACK segments in the MAC layer; detecting an average transmission rate of data segments; and transporting the stored ACK segments to the transport layer at the average transmission rate. Accordingly, by controlling an upward transport rate of a received ACK message by referring to an RTO value of a TCP in a MAC layer, unnecessary retransmission can be prevented by a congestion control function.

摘要翻译： 一种无线通信系统的发送器中的传输控制方法，其包括具有如下的传输层：具有在接收到ACK段之前RTO定时器到期时以段为单位发送数据的拥塞控制功能的传输层;响应于 该段的传输和用于检测通过无线链路接收ACK段的MAC层，并将检测到的ACK段传送到传输层，包括临时存储接收的ACK段在MAC层中; 检测数据段的平均传输速率; 并以平均传输速率将存储的ACK片段传送到传输层。 因此，通过参照MAC层中的TCP的RTO值来控制接收到的ACK消息的向上传输速率，可以通过拥塞控制功能来防止不必要的重传。

公开(公告)号：US09001704B2

公开(公告)日：2015-04-07

申请号：US12454828

申请日：2009-05-22

申请人： Seung-Hee Han ,  Sung-Yoon Jung ,  Sang-Boh Yun ,  Joo-Hyun Lee

发明人： Seung-Hee Han ,  Sung-Yoon Jung ,  Sang-Boh Yun ,  Joo-Hyun Lee

IPC分类号： H04B7/00 ,  H03G3/30 ,  H04B1/10

CPC分类号： H03G3/3068 ,  H04B1/1027 ,  H04B7/15535

摘要： An apparatus and method for adaptively adjusting a target Received Signal Strength Indicator (RSSI) for Automatic Gain Control (AGC) in a full-duplex relay apparatus with an interference cancellation function. A Signal to Interference Ratio (SIR) estimation block estimates an SIR based on an interference signal estimated from a received signal and an interference-cancelled signal determined by cancelling the estimated interference signal from the received signal. A target RSSI determination block determines a target RSSI according to the estimated SIR. An AGC block adjusts a gain for the received signal based on the determined target RSSI.

公开(公告)号：US08472962B2

公开(公告)日：2013-06-25

申请号：US12766288

申请日：2010-04-23

申请人： II-Whan Kim ,  Sang-Boh Yun ,  Sung-Soo Hwang ,  Dae-Sik Hong ,  Sung-Soo Park

发明人： II-Whan Kim ,  Sang-Boh Yun ,  Sung-Soo Hwang ,  Dae-Sik Hong ,  Sung-Soo Park

IPC分类号： H04W36/00 ,  H04W72/00 ,  H04W4/00

CPC分类号： H04W24/02 ,  H04W72/00 ,  H04W72/04 ,  H04W84/045 ,  H04W88/08

摘要： An apparatus and method for mitigating inter-cell interference in a macro Base Station (BS) of a wireless communication system having at least one femto cell are provided. The method includes restricting the use of at least one code among at least one available code when forming a beam by resource block, constructing a codebook set for each resource block, when feedback information is received from at least one Mobile Station (MS), allocating a resource to the MS in consideration of the feedback information, determining a weight for forming a beam to the MS in consideration of the codebook set for each resource block and the resource allocated to the MS, and forming the beam to the MS using the weight.

摘要翻译： 提供了一种用于减轻具有至少一个毫微微小区的无线通信系统的宏基站（BS）中的小区间干扰的装置和方法。 该方法包括：当从至少一个移动台（MS）接收到反馈信息时，在通过资源块形成波束时，在至少一个可用代码中限制使用至少一个代码，为每个资源块构建码本集合，分配 考虑到反馈信息给MS的资源，考虑到针对每个资源块设置的码本和分配给MS的资源，确定用于向MS形成波束的权重，并且使用权重向MS建立波束 。

公开(公告)号：US08432986B2

公开(公告)日：2013-04-30

申请号：US12004112

申请日：2007-12-20

申请人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Yong-Soo Cho ,  Jae-Kwon Kim ,  Tae-Ho Im

发明人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Yong-Soo Cho ,  Jae-Kwon Kim ,  Tae-Ho Im

IPC分类号： H04B7/02

CPC分类号： H04L25/03171 ,  H04B7/0854 ,  H04L25/067 ,  H04L27/38 ,  H04L2025/03426

摘要： An apparatus and method for receiving signals in a multiple-input, multiple-output (MIMO) wireless communication system is provided. A receiving end using as many as N Receive (Rx) antennas includes a first detector, as many as (N−2) nth detectors, and an Nth detector. A signal detection technique of the present invention has a low complexity and a throughput similar to that of a Maximum Likelihood (ML) scheme in a Multiple-Input Multiple-Output (MIMO) wireless communication system using a Spatial Multiplexing (SM) scheme.

摘要翻译： 提供了一种用于在多输入多输出（MIMO）无线通信系统中接收信号的装置和方法。 使用多达N个接收（Rx）天线的接收端包括第一检测器，多达（N-2）个第n个检测器和第N个检测器。 本发明的信号检测技术具有与使用空间复用（SM）方案的多输入多输出（MIMO）无线通信系统中的最大似然（ML）方案相似的低复杂度和吞吐量。

公开(公告)号：US08204150B2

公开(公告)日：2012-06-19

申请号：US12286597

申请日：2008-10-01

申请人： Seung-Hee Han ,  Jong-Hyeuk Lee ,  Sang-Boh Yun

发明人： Seung-Hee Han ,  Jong-Hyeuk Lee ,  Sang-Boh Yun

IPC分类号： H04L27/00 ,  H04B7/02

CPC分类号： H04L5/0023 ,  H04L5/0066 ,  H04L27/2618 ,  H04L27/2623

摘要： An apparatus is provided for reducing a peak-to-average power ratio (PAPR) in a wireless communication system having multiple transmit antennas. A symbol generator generates symbols to be transmitted via the multiple transmit antennas, and a PAPR calculator calculates a PAPR value for each symbol. A detector detects a maximum PAPR value among the PAPR values of the symbols. A controller outputs a control signal to reduce a PAPR value of a corresponding symbol when the detected maximum PAPR value exceeds a reference PAPR value. A PAPR reducer reduces the PAPR value of the corresponding symbol upon receipt of the control signal.

摘要翻译： 提供一种用于降低具有多个发射天线的无线通信系统中的峰均功率比（PAPR）的装置。 符号生成器生成要通过多个发送天线发送的符号，PAPR计算器计算每个符号的PAPR值。 检测器检测符号的PAPR值中的最大PAPR值。 当检测到的最大PAPR值超过参考PAPR值时，控制器输出控制信号以减小相应符号的PAPR值。 PAPR减速器在接收到控制信号时降低相应符号的PAPR值。

公开(公告)号：US08145207B2

公开(公告)日：2012-03-27

申请号：US12378885

申请日：2009-02-20

申请人： Sung-Soo Hwang ,  Jin-Ghoo Choi ,  Chi-Hyun Park ,  Sang-Boh Yun ,  Seung-Hee Han

发明人： Sung-Soo Hwang ,  Jin-Ghoo Choi ,  Chi-Hyun Park ,  Sang-Boh Yun ,  Seung-Hee Han

IPC分类号： H04W24/00

CPC分类号： H04B7/15542 ,  H04B1/1027

摘要： An apparatus and method for avoiding interference between a base station and a relay station when using full duplex relay in a multi-hop relay wireless communication system are provided. An operation of a mobile station includes measuring an strength of a receive signal from a base station and an strength of a receive signal from an relay station, calculating a receive signal strength ratio of base station to relay station by dividing the strength of the receive signal from the base station by the strength of the receive signal from the relay station, determining if interference occurs using the receive signal strength ratio, and transmitting a control message representing if interference occurs.

摘要翻译： 提供了一种用于在多跳中继无线通信系统中使用全双工中继时避免基站与中继站之间的干扰的装置和方法。 移动站的操作包括测量来自基站的接收信号的强度和来自中继站的接收信号的强度，通过除去接收信号的强度来计算基站到中继站的接收信号强度比 从基站通过来自中继站的接收信号的强度，使用接收信号强度比确定是否发生干扰，以及发送表示是否发生干扰的控制消息。

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：US08018846B2

公开(公告)日：2011-09-13

申请号：US11638783

申请日：2006-12-14

申请人： Tae-In Hyon ,  Sang-Boh Yun ,  Hoon Kim

发明人： Tae-In Hyon ,  Sang-Boh Yun ,  Hoon Kim

IPC分类号： H04L12/26 ,  H04J3/16 ,  H04B7/00

CPC分类号： H04L47/12 ,  H04L1/1607 ,  H04L1/1867 ,  H04L47/10 ,  H04L47/14 ,  H04L47/193 ,  H04L47/2466 ,  H04W28/10 ,  H04W80/06

摘要： A transport control method in a transmitter of a wireless communication system, which includes a transport layer having a congestion control function of transmitting data in a segment basis and retransmitting a segment if an RTO timer expires before receipt of an ACK segment is received in response to transmission of the segment and a MAC layer for detecting receipt of an ACK segment through a wireless link and transporting the detected ACK segment to the transport layer, includes temporarily storing received ACK segments in the MAC layer; detecting an average transmission rate of data segments; and transporting the stored ACK segments to the transport layer at the average transmission rate. Accordingly, by controlling an upward transport rate of a received ACK message by referring to an RTO value of a TCP in a MAC layer, unnecessary retransmission can be prevented by a congestion control function.

摘要翻译： 一种无线通信系统的发送器中的传输控制方法，其包括具有如下传输层的传输层，所述传输层具有在接收到ACK片段之前如果在RTO定时器到期之前以段为基础传输数据并重传片段，则响应于 该段的传输和用于检测通过无线链路接收ACK段的MAC层，并将检测到的ACK段传送到传输层，包括临时存储接收的ACK段在MAC层中; 检测数据段的平均传输速率; 并以平均传输速率将存储的ACK片段传送到传输层。 因此，通过参照MAC层中的TCP的RTO值来控制接收到的ACK消息的向上传输速率，可以通过拥塞控制功能来防止不必要的重传。

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）。