公开(公告)号：US20080198071A1

公开(公告)日：2008-08-21

申请号：US12030639

申请日：2008-02-13

申请人： In-Soo Hwang ,  Myeon-Kyun Cho ,  Dong-Ho Kim ,  Young-Ho Jung ,  Yung-Soo Kim ,  Yu-Seok Kim ,  Vahid Tarokh

发明人： In-Soo Hwang ,  Myeon-Kyun Cho ,  Dong-Ho Kim ,  Young-Ho Jung ,  Yung-Soo Kim ,  Yu-Seok Kim ,  Vahid Tarokh

IPC分类号： H01Q3/00

CPC分类号： H04B7/0617 ,  H04B7/0447 ,  H04B7/0669

摘要： An apparatus and method for removing interference in a transmitting end of a multi-antenna system are provided. The method includes receiving channel information for all Receive (Rx) antennas; calculating a beam-forming matrix that maximizes a Signal-to-Interference plus Noise Ratio (SINR) for each Rx antenna by using the received channel information; calculating an integer value which is in proportion to an interference signal for each Rx antenna by using the received channel information and the calculated beam-forming matrix, and performing Dirty Paper Coding (DPC) on a Transmit (Tx) signal by using the calculated integer value; and performing beam-forming by multiplying the Tx signal that has undergone the DPC by the calculated beam-forming matrix. Accordingly, a highest data rate for each user and a highest diversity can be obtained.

摘要翻译： 提供一种用于消除多天线系统的发送端的干扰的装置和方法。 该方法包括接收所有接收（Rx）天线的信道信息; 计算通过使用所接收的信道信息使每个Rx天线的信号与干扰加噪声比（SINR）最大化的波束形成矩阵; 通过使用所接收的信道信息和所计算的波束形成矩阵来计算与每个Rx天线的干扰信号成比例的整数值，并且通过使用所计算的整数对发送（Tx）信号执行脏纸编码（DPC） 值; 并且通过将已经经历DPC的Tx信号乘以所计算的波束形成矩阵来执行波束形成。 因此，可以获得每个用户的最高数据速率和最高的分集度。

公开(公告)号：US20090135939A1

公开(公告)日：2009-05-28

申请号：US11856569

申请日：2007-09-17

申请人： In-Soo Hwang ,  Cheol-Woo You ,  Yung-Soo Kim ,  Young-Ho Jung

发明人： In-Soo Hwang ,  Cheol-Woo You ,  Yung-Soo Kim ,  Young-Ho Jung

IPC分类号： H04B7/02

CPC分类号： H04B7/0669 ,  H04L1/0006 ,  H04L1/0618 ,  H04L1/0656 ,  H04L1/0662

摘要： Disclosed is a space-time coding apparatus and method to flexibly adjust diversity/multiplexing orders in a multiple-antenna system. The transmitting apparatus for the multiple-antenna system includes a space-time code controller, an encoder, a demultiplexer, and a space-time encoder. The space-time code controller generates space-time codes by determining bases according to a multiplexing order required by a receiver. The encoder modulates and encodes data destined for the receiver in accordance with a predetermined modulation level. The demultiplexer demultiplexes data received from the encoder in order to transmit the data through at least one antenna. The space-time encoder space-time-codes the demultiplexed data using the space-time codes.

摘要翻译： 公开了一种在多天线系统中灵活地调整分集/复用顺序的时空编码装置和方法。 用于多天线系统的发送装置包括时空码控制器，编码器，解复用器和时空编码器。 空时编码控制器通过根据接收机所要求的多路复用顺序确定基准来产生时空码。 编码器根据预定的调制电平对目的地为接收机的数据进行调制和编码。 解复用器对从编码器接收的数据进行解复用，以通过至少一个天线发送数据。 时空编码器使用空时码对多路复用数据进行空时编码。

公开(公告)号：US20080130570A1

公开(公告)日：2008-06-05

申请号：US11946456

申请日：2007-11-28

申请人： Young-Ho Jung ,  Cheol-Woo You ,  Yung-Soo Kim ,  Sung-Hyun Cho ,  Jong-Hyung Kwun

发明人： Young-Ho Jung ,  Cheol-Woo You ,  Yung-Soo Kim ,  Sung-Hyun Cho ,  Jong-Hyung Kwun

IPC分类号： H04Q7/00

CPC分类号： H04W28/18 ,  H04W48/08 ,  H04W72/08 ,  H04W88/10

摘要： A method for providing a service in a communication system is provided. A Base Station (BS) supporting a plurality of communication service modes allocates communication resources for each of the plurality of communication service modes according to a ratio determined in accordance with a communication service mode preferred by a terminal. The BS transmits a combination of resources allocated for each of the plurality of communication service modes to the terminal. The communication service mode preferred by the terminal is determined using at least one of channel condition of the terminal, moving velocity, preferred communication mode, required performance, billing system, and user preference.

摘要翻译： 提供了一种用于在通信系统中提供服务的方法。 支持多个通信服务模式的基站（BS）根据根据终端优选的通信服务模式确定的比例为多个通信服务模式中的每一个分配通信资源。 BS向终端发送为多个通信服务模式中的每一个分配的资源的组合。 终端优选的通信服务模式使用终端的信道条件，移动速度，优选通信模式，所需性能，计费系统和用户偏好中的至少一个来确定。

公开(公告)号：US20080064329A1

公开(公告)日：2008-03-13

申请号：US11851922

申请日：2007-09-07

申请人： Young-Ho JUNG ,  Yung-Soo Kim ,  Cheol-Woo You

发明人： Young-Ho JUNG ,  Yung-Soo Kim ,  Cheol-Woo You

IPC分类号： H04B7/14

CPC分类号： H04B7/2606 ,  H04B7/155

摘要： A method for performing ranging by a mobile station in a communication system. The method includes transmitting a ranging sequence to a relay station; receiving an added signal of a reference sequence of the relay station and the ranging sequence, from the relay station; performing a correlation operation on each of the ranging sequence and the reference sequence in the added signal; estimating a time difference between the ranging sequence and the reference sequence depending on the correlation operation; and transmitting the signal to the relay station taking the time difference into account.

摘要翻译： 一种在通信系统中由移动台执行测距的方法。 该方法包括向中继站发送测距序列; 从所述中继站接收所述中继站的参考序列和所述测距序列的附加信号; 对所添加的信号中的测距序列和参考序列中的每一个进行相关运算; 根据相关运算估计测距序列与参考序列之间的时间差; 并将信号发送到中继站考虑时间差。

公开(公告)号：US20080018535A1

公开(公告)日：2008-01-24

申请号：US11776631

申请日：2007-07-12

申请人： In-Soo Hwang ,  Cheol-Woo You ,  Yung-Soo Kim ,  Dong-Ho Kim ,  Vahid Tarokh

发明人： In-Soo Hwang ,  Cheol-Woo You ,  Yung-Soo Kim ,  Dong-Ho Kim ,  Vahid Tarokh

IPC分类号： H01Q21/00

CPC分类号： H01Q21/00 ,  H01Q1/52

摘要： An apparatus and method for removing interference in a transmitting end of a multi-antenna system is provided. The method includes decomposing a channel matrix comprising channel coefficients for a plurality of terminals, calculating a value proportional to an interference signal for each of antennas, and calculating a sum of a transmission signal and the calculated value for each terminal and multiplying the calculated sum by the decomposed channel matrix. Accordingly, channel capacity can be improved by optimizing a data transfer rate and transmission power for each terminal.

摘要翻译： 提供一种用于消除多天线系统的发送端的干扰的装置和方法。 该方法包括分解包括多个终端的信道系数的信道矩阵，计算与每个天线的干扰信号成比例的值，并且计算每个终端的发送信号和计算值的和，并将计算出的和乘以 分解的信道矩阵。 因此，通过优化每个终端的数据传输速率和传输功率可以提高信道容量。

公开(公告)号：US20070218904A1

公开(公告)日：2007-09-20

申请号：US11715167

申请日：2007-03-07

申请人： Dae-Young Park ,  Cheol-Woo You ,  Seung-Young Park ,  Sang-Boh Yun ,  Yung-Soo Kim

发明人： Dae-Young Park ,  Cheol-Woo You ,  Seung-Young Park ,  Sang-Boh Yun ,  Yung-Soo Kim

IPC分类号： H04Q7/20

CPC分类号： H04W28/22 ,  H04W28/08 ,  H04W72/0486

摘要： Disclosed is a method for efficiently allocating resources in a multi-cell communication system. The method includes feeding back, by a mobile station to a base station, Modulation and Coding Scheme (MCSs) corresponding to loading factors; calculating, by the base station, efficient data rates corresponding to the MCSs fedback from the mobile station; allocating, by the base station, a loading factor according to the MCSs to the mobile station; and allocating resources to the mobile station according to the loading factor.

摘要翻译： 公开了一种在多小区通信系统中有效地分配资源的方法。 该方法包括由移动台向基站反馈与加载因子对应的调制和编码方案（MCS）; 由基站计算与从移动台反馈的MCS对应的有效数据速率; 由基站向移动台分配根据MCS的负载因子; 并根据负载因素向移动台分配资源。

公开(公告)号：US20070133480A1

公开(公告)日：2007-06-14

申请号：US11603652

申请日：2006-11-22

申请人： Seung-Hoon Nam ,  Cheol-Woo You ,  In-Soo Hwang ,  Yung-Soo Kim ,  Tarokh Vahid

发明人： Seung-Hoon Nam ,  Cheol-Woo You ,  In-Soo Hwang ,  Yung-Soo Kim ,  Tarokh Vahid

IPC分类号： H04B7/216

CPC分类号： H04L1/0021 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025

摘要： A system and method are provided for controlling a data rate in a communication system. A transmitter sets threshold values for classifying Modulation and Coding Scheme (MCS) levels. When receiving information about an MCS level desired to be used in the receiver, the transmitter sets an MCS level to be actually used in the receiver and transmits information about the set MCS level to the receiver. When detecting that the information is to be transmitted to the transmitter, the receiver computes instantaneous link capacity using a channel estimation result, sets an MCS level mapped to the instantaneous link capacity, and transmits information about the set MCS level to the transmitter. The receiver receives the information about the MCS level to be actually used from the transmitter.

摘要翻译： 提供了一种用于控制通信系统中的数据速率的系统和方法。 发射机设置用于分类调制和编码方案（MCS）级别的阈值。 当接收到有关希望在接收机中使用的MCS级别的信息时，发射机设置在接收机中实际使用的MCS级别，并将关于所设置的MCS级别的信息发送给接收机。 当检测到要将信息发送到发射机时，接收机使用信道估计结果计算瞬时链路容量，设置映射到瞬时链路容量的MCS级别，并将关于所设置的MCS级别的信息发送到发射机。 接收机从发射机接收关于实际使用的MCS级别的信息。

公开(公告)号：US20070049283A1

公开(公告)日：2007-03-01

申请号：US11508049

申请日：2006-08-22

申请人： Eung-Sun Kim ,  Yung-Soo Kim ,  Cheol-Woo You ,  Jong-Hyung Kwun

发明人： Eung-Sun Kim ,  Yung-Soo Kim ,  Cheol-Woo You ,  Jong-Hyung Kwun

IPC分类号： H04Q7/20

CPC分类号： H04W48/12 ,  H04W72/048

摘要： Disclosed is a cellular-based wireless communication system, and more particularly a method for allocating resources for data transmission in a cellular-based wireless communication system employing a multicarrier scheme. Frequency resources are divided into time slots defined by one frame and the divided time slots are allocated to an uplink and the downlink. During a predetermined time period, the frequency resources are allocated as resources for transmitting sync preambles. During a next predetermined time period, the frequency resources are allocated in such a manner that the frequency resources for sectors are successively and repeatedly used as resources for transmitting broadcasting messages on a sector-by-sector basis. In the remaining time slots, except the time slots for transmitting the preambles and the broadcasting messages, the frequency resources are allocated as resources for transmitting channel estimation midambles for dynamic channel allocation.

摘要翻译： 公开了一种基于蜂窝的无线通信系统，更具体地，涉及一种在采用多载波方案的基于蜂窝的无线通信系统中为数据传输分配资源的方法。 频率资源划分为一帧定义的时隙，分配的时隙分配给上行链路和下行链路。 在预定时间段期间，频率资源被分配为用于发送同步前导码的资源。 在下一个预定时间段期间，频率资源被分配成使得用于扇区的频率资源被连续和重复地用作用于逐扇区地发送广播消息的资源。 在剩余时隙中，除了用于发送前导码和广播消息的时隙之外，频率资源被分配为用于发送用于动态信道分配的信道估计中间码的资源。

公开(公告)号：US08369306B2

公开(公告)日：2013-02-05

申请号：US11940519

申请日：2007-11-15

申请人： Young-Ho Jung ,  Cheol-Woo You ,  Yung-Soo Kim

发明人： Young-Ho Jung ,  Cheol-Woo You ,  Yung-Soo Kim

IPC分类号： H04L12/56 ,  H04J1/16

CPC分类号： H04W74/0866 ,  H04W72/042 ,  H04W74/004 ,  H04W74/0833

摘要： A method for transmitting and receiving data in a communication system. The method generates a frame for mapping each of multiple communication service modes of a base station providing the multiple communication service modes to a user terminal, in units of subframes each having a time interval and a frequency band. The method includes estimating a communication service mode supporting an optimal service among the multiple communication service modes provided by the base station supporting the multiple communication service modes, and sending to the base station a random access message for access to the base station over a shared channel.

摘要翻译： 一种用于在通信系统中发送和接收数据的方法。 该方法以每个具有时间间隔和频带的子帧为单位，生成用于将提供多个通信服务模式的基站的多个通信服务模式中的每一个映射到用户终端的帧。 该方法包括：估计在支持多种通信业务模式的基站提供的多种通信业务模式中支持最佳业务的通信业务模式，并向基站发送用于通过共享信道接入基站的随机接入消息 。

公开(公告)号：US08023445B2

公开(公告)日：2011-09-20

申请号：US11851096

申请日：2007-09-06

申请人： Young-Ho Jung ,  Yung-Soo Kim ,  Cheol-Woo You

发明人： Young-Ho Jung ,  Yung-Soo Kim ,  Cheol-Woo You

IPC分类号： H04W4/00

CPC分类号： H04B7/155 ,  H04B7/2606 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2613

摘要： Provided are a relaying method and system in a communication system having a BS, a MS for communicating with the BS, and an RS for relaying signals between the BS and the MS, in which the RS receives a first pilot sequence from the BS, replaces the first pilot sequence with a second pilot sequence, and transmits the second pilot sequence to the MS. Here, a partial cross correlation between the first and second pilot sequences is always ‘0’.

摘要翻译： 提供了一种具有BS，用于与BS进行通信的MS的通信系统和用于在BS与MS之间中继信号的RS的中继方法和系统，其中RS从BS接收第一导频序列，替换 所述第一导频序列具有第二导频序列，并将所述第二导频序列发送到所述MS。 这里，第一和第二导频序列之间的部分互相关始终为“0”。