公开(公告)号：US20090034639A1

公开(公告)日：2009-02-05

申请号：US12221225

申请日：2008-07-31

申请人： In-Soo Hwang ,  Yung-Soo Kim ,  Myeon-Kyun Cho

发明人： In-Soo Hwang ,  Yung-Soo Kim ,  Myeon-Kyun Cho

IPC分类号： H04L27/28

CPC分类号： H04B7/0689 ,  H04B7/0417 ,  H04B7/0434 ,  H04B7/0697 ,  H04L1/0015 ,  H04L1/0025 ,  H04L1/0618 ,  H04L25/03343 ,  H04L2025/03802

摘要： An apparatus and method for supporting a plurality of MIMO modes in a wireless communication system are provided, in which a receiver selects one of the plurality of MIMO modes according to at least one of a received signal strength, a speed of the receiver, a correlation between a transmitter and the receiver, a presence or absence of channel quality information, a precoding index, and an antenna information, a rank, and a number of users, generates feedback information in a transmission format corresponding to the selected MIMO mode, and transmits the feedback information to the transmitter using a feedback resources allocated according to the selected MIMO mode.

摘要翻译： 提供了一种用于在无线通信系统中支持多个MIMO模式的装置和方法，其中接收机根据接收信号强度，接收机速度，相关性中的至少一个选择多个MIMO模式之一 在发射机和接收机之间，存在或不存在信道质量信息，预编码索引和天线信息，秩和用户数量，以对应于所选MIMO模式的传输格式生成反馈信息，并且发送 使用根据所选MIMO模式分配的反馈资源将反馈信息发送给发射机。

公开(公告)号：US20090016457A1

公开(公告)日：2009-01-15

申请号：US12217868

申请日：2008-07-09

申请人： Eun-Seok Ko ,  Tak-Ki Yu ,  Yung-Soo Kim ,  Myeon-Kyun Cho

发明人： Eun-Seok Ko ,  Tak-Ki Yu ,  Yung-Soo Kim ,  Myeon-Kyun Cho

IPC分类号： H04L27/28

CPC分类号： H04L27/0008 ,  H04B7/0434 ,  H04B7/0619 ,  H04B7/063 ,  H04B7/0857 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/206

摘要： A multiple-input multiple-output (MIMO) wireless communication system includes a first calculator for calculating pairwise error rates (PERs) for each modulation scheme combination which comprise elements smaller than or equal to receive antennas in number; a second calculator for calculating symbol error rates (SERs) for the each modulation scheme combination using the PERs; a converter for converting the SERs to effective signal to noise ratios (SNRs); and a determiner for determining one among sets of effective SNR per stream acquired from the modulation scheme combinations, as a final effective SNR per stream.

摘要翻译： 多输入多输出（MIMO）无线通信系统包括：第一计算器，用于针对每个调制方案组合计算成对误差率（PERs），所述组合包括小于或等于接收天线数量的元件; 用于使用PERs来计算每个调制方案组合的符号错误率（SER）的第二计算器; 用于将SER转换为有效信噪比（SNR）的转换器; 以及确定器，用于确定从调制方案组合获取的每个流的有效SNR集合中的一个，作为每个流的最终有效SNR。

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：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：US20060109865A1

公开(公告)日：2006-05-25

申请号：US11286728

申请日：2005-11-25

申请人： Seung-Young Park ,  Yeon-Woo Lee ,  Sang-Boh Yun ,  Yung-Soo Kim

发明人： Seung-Young Park ,  Yeon-Woo Lee ,  Sang-Boh Yun ,  Yung-Soo Kim

IPC分类号： H04J1/00 ,  H04J11/00

CPC分类号： H04W16/12 ,  H04W16/02 ,  H04W16/24 ,  H04W16/28 ,  H04W28/16

摘要： In an orthogonal frequency division multiplexing (OFDM) mobile communication system, an apparatus and method allocates resources for data transmission and transmits/receives user data using the allocated resources. A full subcarrier band allocable for one cell is divided into a plurality of subcarrier regions. Subcarriers selected from subcarriers existing in one of the plurality of subcarrier regions are allocated for each of a plurality of sectors constituting the cell. The subcarriers are allocated such that subcarriers existing in different subcarrier regions are allocated for neighboring sectors in the cell.

公开(公告)号：US20060094372A1

公开(公告)日：2006-05-04

申请号：US11262216

申请日：2005-10-28

申请人： Woo-Geun Ahn ,  Seung-Young Park ,  Yeon-Woo Lee ,  Ok-Seon Lee ,  Hyung-Myung Kim ,  Hye-Ju Oh ,  Yung-Soo Kim ,  Tae-Sung Kang

发明人： Woo-Geun Ahn ,  Seung-Young Park ,  Yeon-Woo Lee ,  Ok-Seon Lee ,  Hyung-Myung Kim ,  Hye-Ju Oh ,  Yung-Soo Kim ,  Tae-Sung Kang

IPC分类号： H04B17/00

CPC分类号： H04L5/023 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L27/2608

摘要： Disclosed is a method for uplink scheduling in a communication system. The method for uplink scheduling in a communication system having a cellular structure hopping between sub-channels according to a predetermined rule whenever a signal is transmitted The communication system dividing a whole frequency band into a plurality of sub-carrier bands and including the sub-channels which are sets of the sub-carrier bands. The method includes determining a number of sub-channels to be allocated to a mobile station such that throughput of the mobile station is maximized based on a first predetermined condition in which a mobile station having a superior channel state is allocated with a greater number of sub-channels than a mobile station having an inferior channel state, and determining a modulation and coding scheme level according to a signal-to-interference and noise ratio (SINR) of a downlink channel reported by the mobile station based on a second predetermined condition capable of improving a channel state of the mobile station having an inferior channel state.

摘要翻译： 公开了一种通信系统中的上行链路调度方法。 一种通信系统中的上行链路调度方法，每当信号被发送时，具有根据预定规则在子信道之间跳频的蜂窝结构的通信系统。将整个频带划分为多个子载波频带并且包括子信道的通信系统 它们是子载波频带的集合。 该方法包括：确定要分配给移动台的子信道的数量，使得移动站的吞吐量基于其中具有较高信道状态的移动站被分配更多个子信道的第一预定条件而被最大化 具有比具有较差信道状态的移动站的信道，并且根据能够由移动台报告的下行链路信道的信噪比和噪声比（SINR）来确定调制和编码方案级别，所述第二预定条件能够 改善具有较差信道状态的移动站的信道状态。

公开(公告)号：US20050007983A1

公开(公告)日：2005-01-13

申请号：US10840584

申请日：2004-05-06

申请人： Jong-Hyeuk Lee ,  Yung-Soo Kim ,  Gi-Hong Im ,  Hui-Chul Won ,  Cheol-Jin Park

发明人： Jong-Hyeuk Lee ,  Yung-Soo Kim ,  Gi-Hong Im ,  Hui-Chul Won ,  Cheol-Jin Park

IPC分类号： H04J11/00 ,  H04B7/06 ,  H04L1/06 ,  H04L25/02 ,  H04L27/26 ,  H04Q7/00

CPC分类号： H04L27/2602 ,  H04B7/0669 ,  H04L1/0618 ,  H04L25/0204 ,  H04L25/022

摘要： A mobile communication system, a transmitter includes a first transmission antenna and a second transmission antenna, and the first and second transmission antennas transmit signals through at least one odd carrier and at least one even carrier. The transmitter determines a first symbol and a second symbol to be used for initial channel estimation of a receiver, encodes the first symbol and the second symbol by a preset transmit diversity scheme for a preset time, and transmits the encoded first and second symbols to the receiver through odd carriers and even carriers of the first transmission antenna and the second transmission antenna. The receiver receives a signal for the preset period, estimates channel frequency responses of odd carriers of the first transmission antenna and channel frequency responses of even carriers of the second transmission antenna, and estimates channel frequency responses of even carriers of the first transmission antenna and channel frequency responses of odd carriers of the second transmission antenna by using the estimated channel frequency responses.

摘要翻译： 移动通信系统，发射机包括第一发射天线和第二发射天线，第一和第二发射天线通过至少一个奇数载波和至少一个偶数载波发射信号。 发射机确定要用于接收机的初始信道估计的第一符号和第二符号，通过预设的发射分集方案对第一符号和第二符号进行预设时间编码，并将编码的第一和第二符号发送到 接收机通过第一发射天线和第二发射天线的奇数载波和偶数载波。 接收机接收预设周期的信号，估计第一发射天线的奇数载波的信道频率响应和第二发射天线的偶数载波的信道频率响应，并估计第一发射天线和信道的偶数载波的信道频率响应 通过使用估计的信道频率响应对第二发射天线的奇数载波的频率响应。