公开(公告)号：US07729310B2

公开(公告)日：2010-06-01

申请号：US11516866

申请日：2006-09-07

申请人： Yung-Soo Kim

发明人： Yung-Soo Kim

IPC分类号： H04W4/00

CPC分类号： H04L1/0003 ,  H04B7/0491 ,  H04B7/12 ,  H04J11/005 ,  H04L1/0009 ,  H04L1/04 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0046 ,  H04L5/006 ,  H04W72/00 ,  H04W72/0453

摘要： A method is provided for allocating sub-channels in an Orthogonal Frequency Division Multiple Access (OFDMA) mobile communication system including a plurality of cells or a plurality of sectors. The method comprises dividing a time interval preset into a band Adaptive Modulation and Coding (AMC) sub-channel region and a diversity sub-channel region, for each of the cells or sectors; and allocating band AMC sub-channels only in a preset frequency region of the full frequency band used in the OFDMA mobile communication system, in the band AMC sub-channel region.

摘要翻译： 提供一种用于在包括多个小区或多个扇区的正交频分多址（OFDMA）移动通信系统中分配子信道的方法。 该方法包括：对每个小区或扇区，将预设的时间间隔划分成频带自适应调制和编码（AMC）子信道区域和分集子信道区域; 并且仅在频带AMC子信道区域中在OFDMA移动通信系统中使用的全频带的预设频率区域中分配频带AMC子信道。

公开(公告)号：US20090285143A1

公开(公告)日：2009-11-19

申请号：US12454535

申请日：2009-05-19

申请人： Jong-Hyung Kwun ,  Yung-Soo Kim

发明人： Jong-Hyung Kwun ,  Yung-Soo Kim

IPC分类号： G08C17/00

CPC分类号： H04W52/0251 ,  H04W52/0206 ,  H04W52/0229 ,  Y02D70/122

摘要： An apparatus and a method for transiting an operation mode of a femto base station in a wireless communication system are provided. The method includes, in a sleep mode, confirming whether operation transition request information is received from at least one terminal; and when receiving the operation transition request information from the terminal, entering an active mode. Thus, the power consumption of the femto base station can be reduced and the interference caused by the operation of the femto base station can be mitigated.

摘要翻译： 提供了一种用于在无线通信系统中转移毫微微基站的操作模式的装置和方法。 该方法包括：在睡眠模式下，确认是否从至少一个终端接收到操作转换请求信息; 并且当从终端接收到操作转换请求信息时，进入活动模式。 因此，可以减少毫微微基站的功耗，并且可以减轻由毫微微基站的操作引起的干扰。

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：US07535970B2

公开(公告)日：2009-05-19

申请号：US10924463

申请日：2004-08-23

申请人： Chang-Soon Park ,  Kwang-Bok Lee ,  Yung-Soo Kim ,  Jong-Hyeuk Lee ,  Sung-Jin Kim

发明人： Chang-Soon Park ,  Kwang-Bok Lee ,  Yung-Soo Kim ,  Jong-Hyeuk Lee ,  Sung-Jin Kim

IPC分类号： H04L27/00

CPC分类号： H04B7/061 ,  H04B7/0669 ,  H04W52/42

摘要： Disclosed is a wireless communication apparatus and method for a multiple transmit and receive antenna system using multiple codes. In suggested detection algorithm, a successive interference cancellation (SIC) scheme is employed in both an antenna domain and a code domain by successively canceling multi-code interference (MCI). An effective transmit power allocation method suitable for the detection algorithm is suggested. Transmit power allocated to each code is calculated. The transmit power is determined as a simple ratio of power of a certain signal to power of a next code signal. Based on the calculated code transmit power, transmit power for each transmit antenna is allocated. Thus, information about transmit power calculated at a receive end is feedback to a transmit end through a feedback channel.

摘要翻译： 公开了一种使用多个码的多发射和接收天线系统的无线通信装置和方法。 在建议的检测算法中，通过连续取消多码干扰（MCI），在天线域和码域中采用连续干扰消除（SIC）方案。 建议适用于检测算法的有效发射功率分配方法。 计算分配给每个代码的发射功率。 发送功率被确定为特定信号的功率与下一个码信号的功率的简单比率。 基于计算出的码发射功率，分配每个发射天线的发射功率。 因此，在接收端计算的关于发射功率的信息通过反馈信道反馈到发射端。

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：US20090036133A1

公开(公告)日：2009-02-05

申请号：US12220853

申请日：2008-07-29

申请人： Yung-Soo Kim ,  Jong-Hyung Kwun ,  Dai-Kwan Kim

发明人： Yung-Soo Kim ,  Jong-Hyung Kwun ,  Dai-Kwan Kim

IPC分类号： H04Q7/20

CPC分类号： H04W36/0077 ,  H04W36/08 ,  H04W36/14 ,  H04W92/20

摘要： Provided is an apparatus and method for transmitting/receiving a message for a handover to a heterogeneous system in a BWA system. In the method, a neighboring BS information message containing the neighboring heterogeneous system BS information is generated according to the neighboring BS information message generation scheme of the serving system. The serving system BS has only to transmit information about a neighboring BS of the serving system, thus reducing a message overhead. Also, the neighboring heterogeneous system BS has only to transmit its own BS information within the corresponding coverage, thus enabling efficient use of control channel resources.

摘要翻译： 提供了一种用于在BWA系统中向异构系统发送/接收用于切换的消息的装置和方法。 在该方法中，根据服务系统的相邻BS信息消息生成方案生成包含相邻异构系统BS信息的相邻BS信息消息。 服务系统BS仅仅发送关于服务系统的相邻BS的信息，从而减少消息开销。 另外，相邻的异构系统BS仅仅在对应的覆盖范围内发送自己的BS信息，从而能够有效地利用控制信道资源。

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。