公开(公告)号：US07693100B2

公开(公告)日：2010-04-06

申请号：US11407748

申请日：2006-04-20

申请人： Sung-Hyun Cho ,  Sang-Boh Yun ,  Taiwen Tang ,  Robert W. Heath

发明人： Sung-Hyun Cho ,  Sang-Boh Yun ,  Taiwen Tang ,  Robert W. Heath

IPC分类号： H04W4/00 ,  H04J3/00 ,  H04J3/16

CPC分类号： H04B7/0452 ,  H04B7/0645 ,  H04W24/10 ,  H04W72/1268

摘要： In an adaptive feedback method for a cellular communication system having plural terminals feeding back channel information to an access point, the system selects one of an opportunistic mode and a polling mode as a feedback mode between an access point and the terminals on the basis of system and traffic parameters, sets up the access point and the terminals for the selected feedback mode, and feeds back the channel information from the terminals to the access point in the selected feedback mode. The adaptive feedback method changes the feedback mechanism adaptively to the system and traffic environment, making it possible to increase the system throughput as well as to decrease the MAC overhead regardless of the variation of the number of MSs.

摘要翻译： 在具有多个终端将信道信息反馈到接入点的蜂窝通信系统的自适应反馈方法中，系统基于系统选择机会模式和轮询模式之一作为接入点与终端之间的反馈模式 和业务参数，设置所选择的反馈模式的接入点和终端，并且在所选择的反馈模式中将信道信息从终端反馈到接入点。 自适应反馈方法将反馈机制自适应地改变为系统和业务环境，使得可以增加系统吞吐量以及降低MAC开销，而不管MS数量的变化如何。

公开(公告)号：US07486931B2

公开(公告)日：2009-02-03

申请号：US11105984

申请日：2005-04-14

申请人： Sung-Hyun Cho ,  Robert W. Heath

发明人： Sung-Hyun Cho ,  Robert W. Heath

IPC分类号： H04B1/02 ,  H04B7/02 ,  H04M1/00

CPC分类号： H04B7/022 ,  H04B7/0691 ,  H04B7/0874 ,  H04L1/0025 ,  H04L1/0026 ,  H04W36/06 ,  H04W36/08 ,  H04W36/18 ,  H04W36/30

摘要： A cellular mobile communication system using multiple antennas reselects a plurality of transmission antennas of base stations connected to a mobile station. The system includes measuring a channel quality parameter used for estimation of channel performance, determining whether to reselect the transmission antennas using the measured channel quality parameter, reselecting transmission antennas of the base stations connected to the mobile station, and connecting the reselected transmission antennas to the base station.

摘要翻译： 使用多个天线的蜂窝移动通信系统重新选择连接到移动站的基站的多个发送天线。 该系统包括测量用于估计信道性能的信道质量参数，使用所测量的信道质量参数确定是否重新选择发射天线，重新选择连接到移动台的基站的发射天线，以及将重新选择的发射天线连接到 基站。

公开(公告)号：US07809330B2

公开(公告)日：2010-10-05

申请号：US12105880

申请日：2008-04-18

申请人： Sung-Hyun Cho ,  Robert W. Heath

发明人： Sung-Hyun Cho ,  Robert W. Heath

IPC分类号： H04B17/00 ,  H04B1/00 ,  H04B7/00 ,  H04B7/02 ,  H04M1/00

CPC分类号： H04B7/022 ,  H04B7/0691 ,  H04B7/0874 ,  H04L1/0025 ,  H04L1/0026 ,  H04W36/06 ,  H04W36/08 ,  H04W36/18 ,  H04W36/30

摘要： A cellular mobile communication system using multiple antennas reselects a plurality of transmission antennas of base stations connected to a mobile station. The system includes measuring a channel quality parameter used for estimation of channel performance, determining whether to reselect the transmission antennas using the measured channel quality parameter, reselecting transmission antennas of the base stations connected to the mobile station, and connecting the reselected transmission antennas to the base station.

摘要翻译： 使用多个天线的蜂窝移动通信系统重新选择连接到移动站的基站的多个发送天线。 该系统包括测量用于估计信道性能的信道质量参数，使用所测量的信道质量参数确定是否重新选择发射天线，重新选择连接到移动台的基站的发射天线，以及将重新选择的发射天线连接到 基站。

公开(公告)号：US20080214185A1

公开(公告)日：2008-09-04

申请号：US12105880

申请日：2008-04-18

申请人： Sung-Hyun Cho ,  Robert W. Heath

发明人： Sung-Hyun Cho ,  Robert W. Heath

IPC分类号： H04Q7/20

CPC分类号： H04B7/022 ,  H04B7/0691 ,  H04B7/0874 ,  H04L1/0025 ,  H04L1/0026 ,  H04W36/06 ,  H04W36/08 ,  H04W36/18 ,  H04W36/30

摘要： A cellular mobile communication system using multiple antennas reselects a plurality of transmission antennas of base stations connected to a mobile station. The system includes measuring a channel quality parameter used for estimation of channel performance, determining whether to reselect the transmission antennas using the measured channel quality parameter, reselecting transmission antennas of the base stations connected to the mobile station, and connecting the reselected transmission antennas to the base station.

摘要翻译： 使用多个天线的蜂窝移动通信系统重新选择连接到移动站的基站的多个发送天线。 该系统包括测量用于估计信道性能的信道质量参数，使用所测量的信道质量参数确定是否重新选择发射天线，重新选择连接到移动台的基站的发射天线，以及将重新选择的发射天线连接到 基站。

公开(公告)号：US07392054B2

公开(公告)日：2008-06-24

申请号：US11141496

申请日：2005-05-31

申请人： Sung-Hyun Cho ,  Robert W. Heath ,  Sang-Boh Yun ,  Won-Hyoung Park ,  Manish Airy

发明人： Sung-Hyun Cho ,  Robert W. Heath ,  Sang-Boh Yun ,  Won-Hyoung Park ,  Manish Airy

IPC分类号： H04Q7/20

CPC分类号： H04W72/10 ,  H04W4/08 ,  H04W16/24 ,  H04W72/0453 ,  H04W72/082 ,  H04W84/042

摘要： A resource allocation scheduling method for a cellular communication system that can avoid interference between cells. The method includes dividing a frequency band of a system into frames each having preferential allocation blocks and general allocation blocks on a time axis, classifying terminals in each cell into groups of terminals vulnerable to interference and terminals non-vulnerable to interference, and allocating resources by terminal groups according to priority orders given to the terminal groups. The preferential allocation resources designed to have the orthogonality to the interference cells, i.e., sectors, on the time axis are allocated to the terminals vulnerable to the interference, and the remaining resources are allocated to the terminals non-vulnerable to the interference.

摘要翻译： 一种用于蜂窝通信系统的资源分配调度方法，其可以避免小区之间的干扰。 该方法包括将系统的频带划分成具有时间轴上的优先分配块和一般分配块的帧，将每个小区中的终端分类为容易受到干扰的终端的组和不易受干扰的终端，以及通过 终端组根据优先顺序给终端组。 被设计为具有与时间轴上的干扰小区（即扇区）正交性的优先分配资源被分配给易受干扰的终端，并且剩余的资源被分配给非易受干扰的终端。

公开(公告)号：US08059545B2

公开(公告)日：2011-11-15

申请号：US11867457

申请日：2007-10-04

申请人： Young-Hyun Jeon ,  Jong-Hyung Kwun ,  Sung-Hyun Cho ,  Sanghoon Lee ,  Sungho Jeon

发明人： Young-Hyun Jeon ,  Jong-Hyung Kwun ,  Sung-Hyun Cho ,  Sanghoon Lee ,  Sungho Jeon

IPC分类号： H04J1/16

CPC分类号： H04W16/26 ,  H04B7/15521 ,  H04W36/08 ,  H04W48/08 ,  H04W84/047

摘要： Handover apparatus and method using a Relay Node (RN) in a cellular system are provided. The handover method includes receiving, at an RN, broadcast control information of a serving Base Station (BS) and a neighbor BS; network-encoding and broadcasting, at the RN, the received broadcast control information; receiving and storing, at a Mobile Station (MS), the broadcast control information of the serving BS; receiving, at the MS, the network-encoded information from the RN when the MS enters a cell overlapping area; and acquiring, at the MS, the broadcast control information of the neighbor BS by decoding the received network-encoded information with the broadcast control information of the serving BS.

摘要翻译： 提供了在蜂窝系统中使用中继节点（RN）的切换装置和方法。 切换方法包括在RN处接收服务基站（BS）和相邻BS的广播控制信息; 在RN处网络编码和广播接收到的广播控制信息; 在移动站（MS）处接收和存储服务BS的广播控制信息; 当MS进入小区重叠区域时，在MS处接收来自RN的网络编码信息; 以及通过用所述服务BS的广播控制信息解码所接收的网络编码信息，在所述MS处获取所述相邻BS的广播控制信息。

公开(公告)号：US07817592B2

公开(公告)日：2010-10-19

申请号：US11030397

申请日：2005-01-06

申请人： Sang-Boh Yun ,  Sung-Hyun Cho ,  Yung-Soo Kim ,  Eung-Sun Kim ,  Yeon-Woo Lee ,  Stephen McLaughlin

发明人： Sang-Boh Yun ,  Sung-Hyun Cho ,  Yung-Soo Kim ,  Eung-Sun Kim ,  Yeon-Woo Lee ,  Stephen McLaughlin

IPC分类号： H04W4/00

CPC分类号： H04W16/32 ,  H04W16/28

摘要： A cellular communication system and method supporting both a time division duplexing (TDD) scheme and a frequency division duplexing (FDD) scheme. The apparatus includes a plurality of mobile stations, at least three first fixed stations communicate with the mobile station based on the FDD scheme, the first fixed station defining respective macro cells that are contiguous and form a virtual cell, and a cluster including at least one second fixed station communicating with the mobile stations based on the TDD scheme, the second fixed station defining a micro cell in the virtual cell.

摘要翻译： 一种支持时分双工（TDD）方案和频分双工（FDD）方案的蜂窝通信系统和方法。 所述装置包括多个移动站，至少三个第一固定站基于所述FDD方案与所述移动站进行通信，所述第一固定站定义相邻的宏小区，并且形成虚拟小区，以及包括至少一个 第二固定站基于TDD方案与移动站通信，第二固定站在虚拟小区中定义微小区。

公开(公告)号：US20100166332A1

公开(公告)日：2010-07-01

申请号：US12580975

申请日：2009-10-16

申请人： Seung-Yong Lee ,  Sung-Hyun Cho

发明人： Seung-Yong Lee ,  Sung-Hyun Cho

IPC分类号： G06K9/40

CPC分类号： G06K9/40 ,  G06T5/003

摘要： A method of deblurring an image by which blur can be easily and rapidly eliminated from one image and the quality of the image can be improved is provided. The method includes receiving a blurred image, an image estimation step of estimating a non-blurred image from the blurred image, a blur information estimation step of estimating blur information from the blurred image and the estimated non-blurred image, and a deblurring step of deblurring the blurred image based on the blurred image and the estimated blur information, wherein the image estimation step and the blur information estimation step are iteratively performed. Thus, blur can be rapidly and effectively eliminated from one image, thereby improving the quality of an image.

摘要翻译： 提供了去模糊图像的方法，通过该方法可以从一个图像容易且快速地消除模糊，并且可以提高图像的质量。 该方法包括接收模糊图像，从模糊图像估计非模糊图像的图像估计步骤，从模糊图像估计模糊信息和估计的非模糊图像的模糊信息估计步骤，以及去模糊步骤 基于模糊图像和估计的模糊信息去模糊模糊图像，其中迭代地执行图像估计步骤和模糊信息估计步骤。 因此，可以从一个图像中快速有效地消除模糊，从而提高图像的质量。

公开(公告)号：US07590423B2

公开(公告)日：2009-09-15

申请号：US10935212

申请日：2004-09-07

申请人： Won-Hyoung Park ,  Sang-Boh Yun ,  Sung-Hyun Cho

发明人： Won-Hyoung Park ,  Sang-Boh Yun ,  Sung-Hyun Cho

IPC分类号： H04W72/00

CPC分类号： H04W72/06 ,  H04W28/22 ,  H04W72/085

摘要： A channel allocation method in a BS that communicates on at least two channels in a wireless communication system is provided. The BS receives information related to the data rates of the available channels from the MSs within its cell area, calculates the variance of the data rates for each channel, arranges the channels according to the variances, and allocates the channels in the arranged order to the MSs to satisfy the required data rates of the traffic for the MSs.

摘要翻译： 提供了在无线通信系统中在至少两个信道上进行通信的BS中的信道分配方法。 BS从其小区中的MS接收与可用信道的数据速率有关的信息，计算每个信道的数据速率的方差，根据方差布置信道，并按照排列顺序分配给 MS以满足MS的流量所需的数据速率。

公开(公告)号：US07522637B2

公开(公告)日：2009-04-21

申请号：US11178919

申请日：2005-07-11

申请人： Il-Whan Kim ,  Sang-Boh Yun ,  Sung-Hyun Cho ,  Won-Hyoung Park ,  Chung-Gu Kang ,  Jeong-Hwan Lee

发明人： Il-Whan Kim ,  Sang-Boh Yun ,  Sung-Hyun Cho ,  Won-Hyoung Park ,  Chung-Gu Kang ,  Jeong-Hwan Lee

IPC分类号： H04J1/00

CPC分类号： H04L5/0058 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0046 ,  H04W24/00 ,  H04W72/0406 ,  H04W72/048 ,  H04W88/08

摘要： A dynamic resource allocation method in an OFDMA system is provided. A base station determines if each of a plurality of SSs supports subchannel-based dynamic resource allocation. If an SS supports the subchannel-based dynamic resource allocation, the base station allocates resources to the SS on a subchannel basis. If the SS does not support the subchannel-based dynamic resource allocation, the base station allocates resources to the SS on a burst basis.

摘要翻译： 提供了OFDMA系统中的动态资源分配方法。 基站确定多个SS中的每一个是否支持基于子信道的动态资源分配。 如果SS支持基于子信道的动态资源分配，则基站在子信道基础上向SS分配资源。 如果SS不支持基于子信道的动态资源分配，则基站以突发为基础向SS分配资源。