公开(公告)号：US07925267B2

公开(公告)日：2011-04-12

申请号：US11332660

申请日：2006-01-13

申请人： Young-Ho Jung ,  Jae-Hak Chung ,  Seung-Hoon Nam ,  Yung-Soo Kim ,  Sung-Hyun Cho

发明人： Young-Ho Jung ,  Jae-Hak Chung ,  Seung-Hoon Nam ,  Yung-Soo Kim ,  Sung-Hyun Cho

IPC分类号： H04W72/00

CPC分类号： H04W48/12

摘要： A method for transmitting to one cell a frame including broadcast channels in a cellular wireless communication system in which a base station supports a plurality of physical channels corresponding to the broadcast channels. The base station generates the frame and transmits the generated frame to a mobile station. The frame includes separate broadcast channels for the respective physical channels. A position, in the frame, of a first broadcast channel for a physical channel capable of supporting a mobile station having the worst channel state is fixed in all of transmission frames. The first broadcast channel includes positional information of the remaining broadcast channels except for the first broadcast channel. The mobile station detects only an address of a broadcast channel for a physical channel allocated thereto from the first broadcast channel among broadcast channels belonging to the frame.

摘要翻译： 一种用于在蜂窝无线通信系统中向一个小区发送包括广播信道的帧的方法，其中基站支持对应于广播信道的多个物理信道。 基站生成帧并将生成的帧发送到移动台。 该帧包括用于相应物理信道的单独广播信道。 在帧中，能够支持具有最差信道状态的移动站的物理信道的第一广播信道的位置在所有传输帧中是固定的。 第一广播频道包括除了第一广播频道之外的剩余广播频道的位置信息。 移动台仅在属于该帧的广播信道中从第一广播信道检测分配给其的物理信道的广播信道的地址。

公开(公告)号：US07526039B2

公开(公告)日：2009-04-28

申请号：US11075347

申请日：2005-03-08

申请人： Kyeongyeon Kim ,  Chungyong Lee ,  Jae-Hak Chung ,  Seijoon Shim ,  Seung-Hoon Nam

发明人： Kyeongyeon Kim ,  Chungyong Lee ,  Jae-Hak Chung ,  Seijoon Shim ,  Seung-Hoon Nam

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L27/2647 ,  H04L1/0618

摘要： Disclosed is a method for deciding a signal detection order in a mobile communication system that supports an adaptive modulation technology. The detection order that maximizes a channel, in which a product of the minimum symbol distance for each modulation rate and the effective SINR becomes minimum, maximum is selected by obtaining the effective SINR and performing a bit allocation with respect to the detection orders of each detection order, and thus an average error probability can be minimized. In the case in which the number of antennas is increased, the detection orders of all the possible cases are not considered, but the detection order that maximizes the channel, in which the product of the minimum symbol distance for each modulation rate and the effective SINR becomes minimum, is selected with respect to a forward ordering and a reverse ordering.

摘要翻译： 公开了一种在支持自适应调制技术的移动通信系统中决定信号检测顺序的方法。 通过获得有效SINR并针对每个检测的检测顺序执行位分配来选择最大化通道的检测顺序，其中每个调制速率和有效SINR的最小符号距离的乘积最小为最大值 因此可以使平均错误概率最小化。 在增加天线数量的情况下，不考虑所有可能情况的检测顺序，而是考虑使通道最大化的检测顺序，其中每个调制速率的最小符号距离乘积与有效SINR 成为最小值，相对于正向排序和反向排序来选择。

公开(公告)号：US07505527B2

公开(公告)日：2009-03-17

申请号：US10681937

申请日：2003-10-09

申请人： Chan-Soo Hwang ,  Vahid Tarokh ,  Seung-Hoon Nam ,  Jae-Hak Chung ,  Yung-Soo Kim

发明人： Chan-Soo Hwang ,  Vahid Tarokh ,  Seung-Hoon Nam ,  Jae-Hak Chung ,  Yung-Soo Kim

IPC分类号： H04B7/02

CPC分类号： H04L1/0618 ,  H04B7/0669 ,  H04B7/0697 ,  H04B7/0891 ,  H04L1/0643

摘要： A transmitter and a receiver are disclosed herein that support transmit antenna diversity using space-time block coding in a wireless communication system. The transmitter produces symbol combinations containing, as their elements, input symbols, the inversions and conjugates of the symbols, and symbols obtained by rotating the phases of the symbols once, forms a matrix having symbols in at least two columns orthogonal to each other with the symbol combinations, and transmits the matrix. The receiver detects symbols that minimize maximum likelihood (ML) decoding metrics over all possible symbols using channel gains from transmit antennas to a receive antenna. Also, the receiver selects candidate symbols among all possible symbols according to the characteristics of transmitted modulation symbols and detects symbols that minimize the ML decoding metrics.

摘要翻译： 本文公开的发射器和接收器在无线通信系统中支持使用空时块编码的发射天线分集。 发射机产生符号组合，其包含输入符号，符号的反转和共轭以及通过旋转符号的相位获得的符号一次作为其元素，形成具有彼此正交的至少两列中的符号的矩阵， 符号组合，并传输矩阵。 接收机通过使用从发射天线到接收天线的信道增益，检测所有可能符号上的最大似然（ML）解码度量的符号。 此外，接收机根据发送的调制符号的特性来选择所有可能符号中的候选符号，并且检测使ML解码度量最小化的符号。

公开(公告)号：US07319685B2

公开(公告)日：2008-01-15

申请号：US10988876

申请日：2004-11-15

申请人： Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jae-Hak Chung ,  Ho-Jin Kim ,  Joo-Hwan Chun ,  Kyung-Chun Lee ,  Il-Han Kim

发明人： Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jae-Hak Chung ,  Ho-Jin Kim ,  Joo-Hwan Chun ,  Kyung-Chun Lee ,  Il-Han Kim

IPC分类号： H03J3/00

CPC分类号： H04L1/06 ,  H04L5/023 ,  H04L27/2601

摘要： A method for assigning a single frequency sub-channel to a plurality of MSs (Mobile Stations) in an OFDM (Orthogonal Frequency Division Multiplexing) system utilizing SDM (Spatial Division Multiplexing) with multiple transmit/receive antennas. In the method, a BS (Base Station) can effectively assign a pilot channel to estimate a downlink channel. The BS divides the single frequency sub-channel into a plurality of spatial channels, and sequentially assigns the plurality of spatial channels to the MSs having the maximum communication capacity, thereby transmitting signals of the MSs through the single frequency sub-channel.

摘要翻译： 一种利用具有多个发射/接收天线的SDM（空分多路复用）的OFDM（正交频分复用）系统中的多个MS（移动站）分配单个频率子信道的方法。 在该方法中，BS（基站）可以有效地分配导频信道来估计下行链路信道。 BS将单频子信道划分为多个空间信道，并且将多个空间信道顺序地分配给具有最大通信容量的MS，从而通过单个频率子信道发送MS的信号。

公开(公告)号：US20070291638A1

公开(公告)日：2007-12-20

申请号：US11809671

申请日：2007-06-01

申请人： Chan-Byoung Chae ,  Sung-Ryul Yun ,  Hong-Sil Jeong ,  Won-Il Roh ,  Jeong-Tae Oh ,  Kyun-Byoung Ko ,  Young-Ho Jung ,  Seung-Hoon Nam ,  Jae-Hak Chung

发明人： Chan-Byoung Chae ,  Sung-Ryul Yun ,  Hong-Sil Jeong ,  Won-Il Roh ,  Jeong-Tae Oh ,  Kyun-Byoung Ko ,  Young-Ho Jung ,  Seung-Hoon Nam ,  Jae-Hak Chung

IPC分类号： H04J11/00

CPC分类号： H04B7/0669 ,  H04L1/0618

摘要： A space-time block coding (STBC) apparatus and method for a transmitter with four Tx antennas is provided. An input symbol sequence is transmitted through the four Tx antennas in a predetermined method based on feedback information received from a receiver, thereby improving the performance of an STBC.

摘要翻译： 提供了一种具有四个Tx天线的发射机的时空块编码（STBC）装置和方法。 基于从接收器接收到的反馈信息，以预定方法通过四个Tx天线发送输入符号序列，从而提高STBC的性能。

公开(公告)号：US20060268814A1

公开(公告)日：2006-11-30

申请号：US11392407

申请日：2006-03-29

申请人： Jae-Hak Chung ,  Ji-Won Kang ,  Ye-Hoon Lee ,  Seung-Hoon Nam ,  Chung-Yong Lee ,  Hak-Ju Lee

发明人： Jae-Hak Chung ,  Ji-Won Kang ,  Ye-Hoon Lee ,  Seung-Hoon Nam ,  Chung-Yong Lee ,  Hak-Ju Lee

IPC分类号： H04B7/212

CPC分类号： H04W72/1257 ,  H04B7/0452 ,  H04L1/0003 ,  H04L1/0009 ,  H04L5/0075 ,  H04W72/1231

摘要： Provided is a scheduling apparatus and method for allocating resources to individual users in a multiantenna system. An upper layer determines resources to allocate to respective users one a long term, and provides the ratio to a scheduler. Then the scheduler determines coefficients appropriate for the provided ratio. On the assumption that a statistical channel characteristic for a user is constant for a predetermined time, the scheduler determines a channel capacity average and a standard deviation for the user. The scheduler schedules resource allocation for individual users according to the channel capacity average and standard deviation values, which are the statistical characteristic values, and instantaneous channel capacity fed back for the individual users, together with the found coefficients.

摘要翻译： 提供了一种用于在多天线系统中向各个用户分配资源的调度装置和方法。 上层确定长期分配给相应用户的资源，并将比例提供给调度器。 然后调度器确定适合所提供的比率的系数。 假设用户的统计信道特性在预定时间内是恒定的，则调度器确定用户的信道容量平均值和标准偏差。 调度器根据作为统计特征值的信道容量平均值和标准差值，以及针对各个用户反馈的瞬时信道容量，连同所找到的系数，为个体用户调度资源分配。

公开(公告)号：US20060154672A1

公开(公告)日：2006-07-13

申请号：US11332660

申请日：2006-01-13

申请人： Young-Ho Jung ,  Jae-Hak Chung ,  Seung-Hoon Nam ,  Yung-Soo Kim ,  Sung-Hyun Cho

发明人： Young-Ho Jung ,  Jae-Hak Chung ,  Seung-Hoon Nam ,  Yung-Soo Kim ,  Sung-Hyun Cho

IPC分类号： H04Q7/20

CPC分类号： H04W48/12

摘要： A method for transmitting to one cell a frame including broadcast channels in a cellular wireless communication system in which a base station supports a plurality of physical channels corresponding to the broadcast channels. The base station generates the frame and transmits the generated frame to a mobile station. The frame includes separate broadcast channels for the respective physical channels. A position, in the frame, of a first broadcast channel for a physical channel capable of supporting a mobile station having the worst channel state is fixed in all of transmission frames. The first broadcast channel includes positional information of the remaining broadcast channels except for the first broadcast channel. The mobile station detects only an address of a broadcast channel for a physical channel allocated thereto from the first broadcast channel among broadcast channels belonging to the frame.

摘要翻译： 一种用于在蜂窝无线通信系统中向一个小区发送包括广播信道的帧的方法，其中基站支持对应于广播信道的多个物理信道。 基站生成帧并将生成的帧发送到移动台。 该帧包括用于相应物理信道的单独广播信道。 在帧中，能够支持具有最差信道状态的移动站的物理信道的第一广播信道的位置在所有传输帧中是固定的。 第一广播频道包括除了第一广播频道之外的剩余广播频道的位置信息。 移动台仅在属于该帧的广播信道中从第一广播信道检测分配给其的物理信道的广播信道的地址。

公开(公告)号：US20060153282A1

公开(公告)日：2006-07-13

申请号：US11332531

申请日：2006-01-13

申请人： Young-Ho Jung ,  Jae-Hak Chung ,  Seung-Hoon Nam

发明人： Young-Ho Jung ,  Jae-Hak Chung ,  Seung-Hoon Nam

IPC分类号： H04B1/69 ,  H04B1/707

CPC分类号： H04L1/0618 ,  H04L27/2613 ,  H04L27/2614 ,  H04L27/2656 ,  H04L27/2657

摘要： In an orthogonal frequency division multiplexing (OFDM) communication system using multiple transmit antennas, a first base sequence with a first length is segmented into a first number of second sequences to which different time offsets are applied. Subsequences of a first preamble sequence corresponding to the number of second sequences are generated. A second base sequence with a second length is segmented into a second number of third sequences to which different time offsets are applied. Subsequences of a second preamble sequence corresponding to the number of third sequences are generated. A subsequence is selected from the subsequences of the first preamble sequence and is transmitted through a transmit antenna in a first time interval. A third preset number of subsequences are selected from the subsequences of the second preamble sequence, and are mapped and transmitted to the transmit antennas in a second time interval.

公开(公告)号：US20060146856A1

公开(公告)日：2006-07-06

申请号：US11321546

申请日：2005-12-29

申请人： Young-Ho Jung ,  Jae-Hak Chung ,  Chan-Soo Hwang ,  Seung-Hoon Nam

发明人： Young-Ho Jung ,  Jae-Hak Chung ,  Chan-Soo Hwang ,  Seung-Hoon Nam

IPC分类号： H04L12/28

CPC分类号： H04L5/0094 ,  H04L1/0017 ,  H04L1/0029 ,  H04L1/0035 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/006 ,  H04W24/00 ,  H04W24/10 ,  H04W28/06 ,  H04W72/042 ,  H04W72/0453

摘要： An adaptive subchannel and bit allocation method in a wireless communication system. A mobile station analyzes channel quality information of a subchannel at a predetermined period and determines a feedback band index with a maximum decision criterion. The mobile station feeds back the determined feedback band index with the maximum decision criterion to a base station. The base station generates band allocation information using the feedback information from the mobile station, and transmits the band allocation information to the mobile station. The mobile station transmits AMC information using the band allocation information received from the base station. The base station estimates a channel using the AMC information transmitted from the mobile station and allocates bits to the allocated band according to the channel estimation result.

摘要翻译： 一种无线通信系统中的自适应子信道和比特分配方法。 移动台以预定周期分析子信道的信道质量信息，并以最大决策准则确定反馈频带索引。 移动台将确定的具有最大决策准则的反馈频带索引反馈给基站。 基站使用来自移动台的反馈信息生成频带分配信息，并将该频带分配信息发送到移动台。 移动台使用从基站接收到的频带分配信息来发送AMC信息。 基站使用从移动站发送的AMC信息来估计信道，并根据信道估计结果向所分配的频带分配比特。

公开(公告)号：US20060140217A1

公开(公告)日：2006-06-29

申请号：US11291066

申请日：2005-11-30

申请人： Young-Ho Jung ,  Jae-Hak Chung ,  Woo-Seok Nam ,  Jae-Yeun Yun ,  Yong-Hoon Lee

发明人： Young-Ho Jung ,  Jae-Hak Chung ,  Woo-Seok Nam ,  Jae-Yeun Yun ,  Yong-Hoon Lee

IPC分类号： H04J3/22

CPC分类号： H04L27/2601 ,  H04W16/30 ,  H04W72/00 ,  H04W72/048

摘要： Disclosed is a method for adaptively allocating frequency resources in a communication system using an orthogonal frequency division multiple access scheme. The method for allocating frequency resources in the communication system that includes a plurality of cells using an identical frequency band includes the steps of dividing a frequency band used in the communication system into sub-frequency bands corresponding to a number of cells, and allocating one of the sub-frequency bands to each of mobile subscriber stations exiting in the cells according to positions of the mobile subscriber stations, thereby increasing the degree of the freedom for frequency resource allocation and minimizing ICI.

摘要翻译： 公开了一种使用正交频分多址方案在通信系统中自适应地分配频率资源的方法。 在包括使用相同频带的多个小区的通信系统中分配频率资源的方法包括以下步骤：将在通信系统中使用的频带划分为与多个小区相对应的子频带，并且分配 根据移动用户站的位置将小区中的每个移动用户台的子频带，从而增加频率资源分配的自由度并使ICI最小化。