公开(公告)号：US20080019434A1

公开(公告)日：2008-01-24

申请号：US11365064

申请日：2006-02-28

Applicant: Byoung-Hoon Kim ,  Manuel Flury

Inventor： Byoung-Hoon Kim ,  Manuel Flury

IPC: H04B1/10

CPC classification number: H04B1/71072 ,  H04L1/0026 ,  H04L25/0328

Abstract: Successive interference cancellation is performed with improved computational efficiency while offering performance approaching that of full CRC-based successive interference cancellation. In a “blind” interference cancellation technique, reconstructed streams are used for interference cancellation without regard to whether the reconstructed streams were properly decoded. In a “semi-blind” interference cancellation technique, decoder outputs from linear equalization can be used instead of decoder outputs from successive interference cancellation in those cases where linear equalization produces accurate decoding but successive interference cancellation does not.

Abstract translation: 以提高的计算效率执行连续干扰消除，同时提供接近完全基于CRC的连续干扰消除的性能。 在“盲”干扰消除技术中，重构流被用于干扰消除，而不考虑重构的流是否被适当地解码。 在“半盲”干扰消除技术中，可以使用来自线性均衡的解码器输出来代替来自连续干扰消除的解码器输出，在线性均衡产生精确解码但连续干扰消除的情况下。

公开(公告)号：US20070183520A1

公开(公告)日：2007-08-09

申请号：US11672854

申请日：2007-02-08

Applicant: Byoung-Hoon Kim ,  Durga Prasad Malladi

Inventor： Byoung-Hoon Kim ,  Durga Prasad Malladi

IPC: H04K1/10

CPC classification number: H04L1/0001 ,  H04L1/0003 ,  H04L25/03828 ,  H04L27/2614 ,  Y02D50/10

Abstract: Techniques for performing spectral shaping to achieve a desired peak-to-average ratio (PAR) are described. Spectral shaping may be selectively performed for a single-carrier frequency division multiplexing (SC-FDM) signal based on one or more criteria, e.g., in transmit power limited conditions and/or if a modulation scheme with lower PAR is unavailable. At least one parameter of a window function or spectral shaping filter may also be adjusted based on at least one characteristic of the SC-FDM signal. For example, the roll-off of the spectral shaping filter may be adjusted based on the modulation scheme and/or the number of subcarriers used for the SC-FDM signal. A transmitter may perform spectral shaping on modulation symbols, if enabled, to obtain spectrally shaped symbols. Spectral shaping may be performed in the frequency domain either within an allocated bandwidth or with bandwidth expansion. The SC-FDM signal may be generated based on the spectrally shaped symbols.

Abstract translation: 描述了进行光谱整形以达到期望的峰均比（PAR）的技术。 可以基于一个或多个标准，例如在发射功率受限状态和/或如果具有较低PAR的调制方案不可用，可以针对单载波频分复用（SC-FDM）信号选择性地执行频谱整形。 还可以基于SC-FDM信号的至少一个特性来调整窗口函数或频谱整形滤波器的至少一个参数。 例如，可以基于用于SC-FDM信号的调制方案和/或子载波的数量来调整频谱整形滤波器的滚降。 发射机可以在调制符号上执行频谱整形，如果使能，则获得频谱形状的符号。 光谱整形可以在分配的带宽内或频带扩展中在频域中执行。 可以基于频谱形状的符号来生成SC-FDM信号。

公开(公告)号：US06389058B1

公开(公告)日：2002-05-14

申请号：US09045943

申请日：1998-03-23

Applicant: Byoung-Gi Lee ,  Byoung-Hoon Kim

Inventor： Byoung-Gi Lee ,  Byoung-Hoon Kim

IPC: H04B169

CPC classification number: H04B1/7075

Abstract: This invention is to provide an apparatus and method for performing fast distributed sample acquisition (DSA) which is applicable to DS/CDMA system with a long-period PN sequence. The apparatus includes a spreader which generates a data signal by spreading an incoming data stream over a predetermined range of spectrum according to a locally generated first main sequence and samples the state sample of said main sequence, a sample spreader which makes the state sample output from a spreader corresponding to one of binary orthogonal symbols having a predetermined length and outputs a first state signal by spreading the symbol according to a locally generated first subsequence, a sample despreader which reconstructs the transmitted binary orthogonal symbols by despreading the first state signal obtained from the sample spreader according to a locally generated second subsequence and therefrom detects the state sample of the first main sequence, and a despreader which compares the state sample obtained from the sample despreader with a locally generated state sample and makes correction on the SRG installed within itself as many as a predetermined number of times, generates a second main sequence having new states, and reconstructs the incoming data stream by despreading the data signal obtained from the spreader according to the second main sequence.

Abstract translation: 本发明提供一种用于执行快速分布式采样采集（DSA）的装置和方法，其可应用于具有长周期PN序列的DS / CDMA系统。 该装置包括：扩展器，其通过根据本地生成的第一主序列在预定的频谱范围内扩展输入数据流来生成数据信号，并对所述主序列的状态样本进行采样，使状态样本从 扩展器，其对应于具有预定长度的二进制正交符号之一，并且通过根据本地生成的第一子序列扩展符号来输出第一状态信号;样本解扩器，其通过解扩从所述第一子序列获得的第一状态信号来重构所发送的二进制正交符号 样本展开器根据本地产生的第二子序列，并从中检测第一主序列的状态样本，以及解扩器，其将从样本解扩器获得的状态样本与本地生成的状态样本进行比较，并对其内部安装的SRG进行校正 许多是预定次数，g 激励具有新状态的第二主序列，并且通过根据第二主序列解扩从扩展器获得的数据信号来重构输入数据流。

公开(公告)号：US10084627B2

公开(公告)日：2018-09-25

申请号：US11775198

申请日：2007-07-09

Applicant: Durga Prasad Malladi ,  Byoung-Hoon Kim

Inventor： Durga Prasad Malladi ,  Byoung-Hoon Kim

IPC: H04L27/26 ,  H04B1/7143 ,  H04B7/26

CPC classification number: H04L27/2602 ,  H04B1/7143 ,  H04B7/2615

Abstract: Facilitating frequency hopping for single carrier, frequency division multiple access (SC-FDMA) transmission is described herein. By way of example, user data transmitted within a transmission allocation unit can be frequency shifted with respect to time based slots of the allocation unit. As a result, frequency hopping can be accomplished while preserving single carrier constraints and a low peak to average power ratio (PAPR). Furthermore, various frequency shifted mechanisms are disclosed to accomplish preservation of single carrier restraints. For example, a scheduler can select between cyclic frequency shifting, transposed frequency shifting, and multiplexing of frequency selective scheduled and frequency hopped data based on an audit of scheduled data for the transmission allocation unit. As a result, the reduction in interference achieved through frequency hopping can be combined with the low PAPR for various data allocation configurations.

公开(公告)号：US09613002B2

公开(公告)日：2017-04-04

申请号：US14067474

申请日：2013-10-30

Applicant: Chang-Ho Han ,  Dae-Wook Kim ,  Jin-Young Lee ,  Sung-Won Choi ,  Byoung-Hoon Kim ,  Han-Hum Park ,  Sang-Jin Choi ,  Ja-Hum Ku

Inventor： Chang-Ho Han ,  Dae-Wook Kim ,  Jin-Young Lee ,  Sung-Won Choi ,  Byoung-Hoon Kim ,  Han-Hum Park ,  Sang-Jin Choi ,  Ja-Hum Ku

IPC: G01N37/00 ,  G06F17/18 ,  H01L21/66 ,  G03F7/20

CPC classification number: G06F17/18 ,  G03F7/70633 ,  H01L22/00 ,  H01L22/20 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A processing method includes processing a wafer based on initial data, measuring errors for each of the plurality of areas, calculating an error similarity of at least some of the plurality of areas as a function of a separation distance between each pair of some of the areas, selecting a first area and a plurality of second areas adjacent to the first area, calculating weight values for the second areas based on the error similarities between each pair of second areas and the error similarities between the first area and each second area, calculating an estimated error of the first area based on the measured errors of the second areas and the weight values for the second areas, and generating estimated data based on the estimated errors for each of the plurality of areas.

公开(公告)号：US09065714B2

公开(公告)日：2015-06-23

申请号：US11971872

申请日：2008-01-09

Applicant: Durga Prasad Malladi ,  Byoung-Hoon Kim

Inventor： Durga Prasad Malladi ,  Byoung-Hoon Kim

IPC: H04J13/00 ,  H04L27/26 ,  H04W72/04 ,  H04J13/10 ,  H04L1/00 ,  H04L1/16 ,  H04L5/02

CPC classification number: H04L27/2613 ,  H04J13/0074 ,  H04J13/10 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0072 ,  H04L1/1607 ,  H04L1/1671 ,  H04L5/023 ,  H04W72/0406

Abstract: Techniques for transmitting information using cyclically shifted sequences are described. In one design, first and second sequences may be generated by cyclically shifting a base sequence by first and second amounts, respectively. The base sequence may be a CAZAC sequence, a PN sequence, or some other sequence having good correlation properties. The cyclic shifts for the first and second sequences may be determined based on a hopping pattern. A first modulated sequence may be generated based on the first sequence and a first modulation symbol and may be sent in a first time interval. A second modulated sequence may be generated based on the second sequence and a second modulation symbol and may be sent in a second time interval. Each modulated sequence may be sent on K consecutive subcarriers using localized frequency division multiplexing (LFDM).

Abstract translation: 描述了使用循环移位序列发送信息的技术。 在一种设计中，可以通过分别将碱基序列循环移位第一和第二量来产生第一和第二序列。 碱基序列可以是CAZAC序列，PN序列或具有良好相关性质的一些其它序列。 可以基于跳频图案来确定第一和第二序列的循环移位。 可以基于第一序列和第一调制符号来生成第一调制序列，并且可以在第一时间间隔中发送第一调制序列。 可以基于第二序列和第二调制符号来生成第二调制序列，并且可以在第二时间间隔中发送第二调制序列。 可以使用局部频分复用（LFDM）在K个连续子载波上发送每个调制序列。

公开(公告)号：US08964626B2

公开(公告)日：2015-02-24

申请号：US13148069

申请日：2010-02-09

Applicant: Han-Byul Seo ,  Byoung-Hoon Kim ,  Ki-Jun Kim ,  Hak-Seong Kim

Inventor： Han-Byul Seo ,  Byoung-Hoon Kim ,  Ki-Jun Kim ,  Hak-Seong Kim

IPC: H04W88/04 ,  H04L27/26 ,  H04B7/155 ,  H04L5/00 ,  H04B7/26 ,  H04W72/04 ,  H04W84/04

CPC classification number: H04W72/042 ,  H04B7/15528 ,  H04B7/2606 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0053 ,  H04L27/2602 ,  H04W4/06 ,  H04W16/26 ,  H04W28/00 ,  H04W72/0453 ,  H04W84/047

Abstract: The present invention relates to a method and an apparatus for transmitting and receiving data in a relay communication system. The method and the apparatus allocate resources by dividing backhaul link resources into plural partitions, and then transmit and receive data. The data transmission method of the invention comprises the steps of: allocating a certain number of initial OFDM symbol transmission periods in a sub-frame of a downlink channel to a control channel that transfers the control information of the terminal, wherein data is transmitted from a base station to a relay or terminal through the downlink channel; dividing the resource blocks excluded from the control channel of the sub-frame into at least two partitions based on frequency domain; determining whether or not each divided partition is allocated to the relay or terminal as resources; and allocating data to the determined partition in order to transmit the partition to the relay or terminal through the downlink channel, wherein the partition determined for the allocation of resources to the relay is allocated to the relay through time division multiplexing (TDM) or frequency division multiplexing of both control and data channels of the relay.

Abstract translation: 本发明涉及在中继通信系统中发送和接收数据的方法和装置。 该方法和装置通过将回程链路资源分成多个分区，然后发送和接收数据来分配资源。 本发明的数据传输方法包括以下步骤：在下行链路信道的子帧中将一定数量的初始OFDM符号传输周期分配给传送终端的控制信息的控制信道，其中数据从 基站通过下行链路信道到中继或终端; 将从子帧的控制信道排除的资源块划分为基于频域的至少两个分区; 确定每个划分的分区是否作为资源分配给中继站或终端; 并且将数据分配给所确定的分区，以通过下行链路信道向中继站或终端发送分区，其中通过时分多路复用（TDM）或分频将分配给中继的资源确定的分区分配给中继 继电器的控制和数据通道的复用。

公开(公告)号：US08848599B2

公开(公告)日：2014-09-30

申请号：US12443961

申请日：2007-10-31

Applicant: Juan Montojo ,  Byoung-Hoon Kim ,  Durga Prasad Malladi ,  Tao Luo

Inventor： Juan Montojo ,  Byoung-Hoon Kim ,  Durga Prasad Malladi ,  Tao Luo

IPC: H04B7/204 ,  H04J11/00 ,  H04J3/06 ,  H04B3/10 ,  H04W48/08 ,  H04L5/00

CPC classification number: H04W48/16 ,  H04B2201/70701 ,  H04J11/0069 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0048 ,  H04W48/08 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1262 ,  Y02D70/25

Abstract: Systems and methodologies are described that facilitate efficient cell acquisition in a wireless communication system. In one aspect, a reference signal for use in cell acquisition can be constructed in a bandwidth-agnostic manner such that it contains a common central portion in a predetermined frequency band that is independent of a bandwidth utilized by an associated wireless communication system. The central portion can be constructed as a two-dimensional block in time and frequency that spans a default cell search bandwidth, a predetermined bandwidth specified by synchronization codes or other signals, or another suitable bandwidth. A reference signal can then be constructed form the central portion by tiling or expanding the central portion such that it spans the entire system bandwidth.

Abstract translation: 描述了在无线通信系统中促进有效的小区获取的系统和方法。 在一个方面，用于小区获取的参考信号可以以带宽不相关的方式构成，使得它包含与相关无线通信系统所利用的带宽无关的预定频带中的公共中心部分。 中心部分可以被构造为跨越默认小区搜索带宽，由同步码或其他信号指定的预定带宽或另一适当带宽的时间和频率的二维块。 然后可以通过平铺或扩展中心部分从而使中心部分跨越整个系统带宽来构建参考信号。

公开(公告)号：US08761690B2

公开(公告)日：2014-06-24

申请号：US12453439

申请日：2009-05-11

Applicant: Byoung-Hoon Kim ,  Hanbyul Seo

Inventor： Byoung-Hoon Kim ,  Hanbyul Seo

IPC: H04B1/38

CPC classification number: H04B7/2606 ,  H04B7/15557 ,  H04W88/04

Abstract: A method of operating a relay station in a wireless communication system is provided. The method comprises the steps of determining a relay mode and transmitting a signal, received from a source station, to a destination station in the determined relay mode, wherein the relay mode is determined based on at least one of requirements for quality of service (QoS) of traffic, the number of times in which attempts are made to transmit a packet, and an amount of packets stored in a buffer of the relay station.

Abstract translation: 提供了一种在无线通信系统中操作中继站的方法。 该方法包括以确定的中继模式确定中继模式并将从源站接收的信号发送到目的地站的步骤，其中基于服务质量（QoS）的至少一个要求来确定中继模式 ），尝试发送分组的次数以及存储在中继站的缓冲器中的分组量。

公开(公告)号：US08724652B2

公开(公告)日：2014-05-13

申请号：US13322885

申请日：2009-11-03

Applicant: Dae-Sik Hong ,  Go-San Noh ,  Han-Ho Wang ,  Jun-Ho Jo ,  Yong-Ho Seok ,  Byoung-Hoon Kim

Inventor： Dae-Sik Hong ,  Go-San Noh ,  Han-Ho Wang ,  Jun-Ho Jo ,  Yong-Ho Seok ,  Byoung-Hoon Kim

IPC: H04W74/08

CPC classification number: H04W16/14 ,  H04W74/0808

Abstract: Disclosed are an apparatus and method for determining a frame structure for reducing interference between users using the same frequency band in a communication system using a cognitive radio, the method including, collecting channel status information related to a primary user with a priority to occupancy of a predetermined frequency band, executing spectrum sensing for the frequency band to check whether the primary user's traffic exists, deciding a length of a data frame to be transmitted in consideration of interference to the primary user based upon the collected channel status information if a channel in which the primary user's traffic is not present is sensed through the spectrum sensing, constructing a data frame based upon the decided frame length to transmit via the sensed channel, and re-executing the spectrum sensing for the channel, if data to be additionally transmitted exists, and rechecking whether the primary user's traffic is present.

Abstract translation: 公开了一种用于在使用认知无线电的通信系统中确定用于减少使用相同频带的用户之间的干扰的帧结构的装置和方法，所述方法包括：收集与主用户相关的信道状态信息，优先占用 对频段执行频谱检测，以检查主用户的业务是否存在，基于所收集的信道状态信息，基于所收集的信道状态信息来确定考虑到主用户的干扰的要发送的数据帧的长度，如果其中的信道 通过频谱感测来感测主要用户的业务不存在，根据所确定的帧长度构建数据帧，以经由所感测到的信道进行发送，并且如果要附加发送的数据存在，则重新执行该信道的频谱感测， 并重新检查主要用户的流量是否存在。