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41. 发明申请

US20150030139A1 APPARATUS, SYSTEMS AND METHODS OF COMMON MODE BASED DIAGNOSTICS 有权
标题翻译：基于通用模式诊断的装置，系统和方法
公开(公告)号：US20150030139A1
公开(公告)日：2015-01-29
申请号：US14384366
申请日：2012-03-12
申请人： Chan-Soo Hwang , Geoffrey G. Moyer , Mark B. Flowers
发明人： Chan-Soo Hwang , Geoffrey G. Moyer , Mark B. Flowers
IPC分类号： H04M3/26
CPC分类号： H04M3/26 , H04M3/306 , H04M11/062
摘要： In accordance with embodiments disclosed herein, there are provided apparatus, systems and methods for detecting a boundary condition via common mode diagnostics; and to apparatus, systems and methods for detecting a fault condition via common-mode rejection ratio diagnostics. For example, in one embodiment such means include, means for injecting a common mode signal probe onto a first end of a Digital Subscriber Line (DSL line); means for measuring impedance of the common mode signal probe on the DSL line at the first end of the DSL line; means for detecting an impedance anomaly on the DSL line based on the measured impedance of the common mode signal probe; and means for correlating the impedance anomaly on the DSL line to a boundary condition on the DSL line.
摘要翻译：根据本文公开的实施例，提供了通过共模诊断来检测边界条件的装置，系统和方法; 以及用于通过共模抑制比诊断来检测故障状态的装置，系统和方法。例如，在一个实施例中，这种装置包括用于将共模信号探针注入到数字用户线路（DSL线路）的第一端上的装置; 用于在DSL线路的第一端测量DSL线上的共模信号探头的阻抗的装置; 用于根据测得的共模信号探头的阻抗来检测DSL线路上的阻抗异常的装置; 以及用于将DSL线路上的阻抗异常与DSL线路上的边界条件相关联的装置。

42. 发明授权

US07292644B2 Apparatus and method for generating space-time trellis code for maximizing space-time diversity gain and coding gain in a mobile communication system 有权
标题翻译：用于产生空时格码的装置和方法，用于在移动通信系统中最大化时空分集增益和编码增益
公开(公告)号：US07292644B2
公开(公告)日：2007-11-06
申请号：US10630215
申请日：2003-07-30
申请人： Keum-Chan Whang , Chan-Soo Hwang
发明人： Keum-Chan Whang , Chan-Soo Hwang
IPC分类号： H04B7/02
CPC分类号： H04L1/0618 , H04B7/0669
摘要： Disclosed is a method for generating a space-time trellis code (STTC) for maximizing space-time diversity gain and coding gain in a mobile communication system including at least two transmission antennas and generating a second number of STTC codes with an information data bit stream upon receiving the information data bit stream comprised of a first number of bits. The method comprises calculating a minimum effective length for each of the STTC codes; calculating product distances between all STTC codes having the same length as the minimum effective length, wherein for each of pairs of all initial states and all end states for each of the STTC codes, initial states are identical to end states; summing reciprocals of product distances between all the STTC codes for each of the STTC codes, and calculating minimum average product distances by determining a reciprocal of the summation result; and selecting an STTC code corresponding to a minimum average product distance having a maximum value among the minimum average product distances as an STTC code corresponding to the information data bit stream.
摘要翻译：公开了一种用于在包括至少两个发送天线的移动通信系统中产生用于最大化时空分集增益和编码增益的时空网格码（STTC）的方法，并且用信息数据比特流生成第二数量的STTC码一旦接收到由第一位数组成的信息数据比特流。该方法包括计算每个STTC码的最小有效长度; 计算具有与最小有效长度相同长度的所有STTC码之间的商品距离，其中对于每个STTC码的所有初始状态和所有结束状态的对中的每一对，初始状态与终端状态相同; 对每个STTC代码对所有STTC代码之间的乘积距离进行求和，并且通过确定求和结果的倒数来计算最小平均乘积距离; 以及将与所述最小平均乘积距离中具有最大值的最小平均乘积距离对应的STTC码选择为与所述信息数据比特流对应的STTC码。

43. 发明申请

US20060018365A1 Method for transmitting a signal using a precise adaptive modulation and coding scheme in a frequency hopping-orthogonal frequency division multiple access communication system 审中-公开
标题翻译：在跳频正交频分多址通信系统中使用精确的自适应调制编码方式发送信号的方法
公开(公告)号：US20060018365A1
公开(公告)日：2006-01-26
申请号：US11188056
申请日：2005-07-22
申请人： Young-Ho Jung , Chan-Soo Hwang , Yong-Hoon Lee , Kyung-Min Kim , Jae-Yeun Yun , Won-Yong Shin , Jin-Gon Joung , Woo-Hyuk Chang , Woo-Seok Nam
发明人： Young-Ho Jung , Chan-Soo Hwang , Yong-Hoon Lee , Kyung-Min Kim , Jae-Yeun Yun , Won-Yong Shin , Jin-Gon Joung , Woo-Hyuk Chang , Woo-Seok Nam
IPC分类号： H04B1/713
CPC分类号： H04L5/026 , H04B1/7143 , H04B1/715 , H04B2001/7154 , H04L1/0003 , H04L1/0009 , H04L5/0012
摘要： A method of transmitting a signal by using an Adaptive Modulation and Coding scheme in a Frequency Hopping-Orthogonal Frequency Division Multiplexing Access communication system capable of dividing total frequency bands into a plurality of sub-carrier bands and including a plurality of sub-channels, which are sets of predetermined sub-carrier bands, and a plurality of cells. The method includes the steps of allocating a predetermined number of sub-channels as AMC sub-channels per each cell matching with predetermined conditions in order to apply the AMC scheme to the AMC sub-channels, and allocating remaining sub-channels except for the AMC sub-channels as FH-OFDMA sub-channels in order to apply an FH-OFDMA scheme to the FH-OFDMA sub-channels.
摘要翻译：一种在跳频 - 正交频分复用接入通信系统中使用自适应调制和编码方案发送信号的方法，其能够将总频带划分成多个子载波频带并且包括多个子信道，其中是一组预定的子载波频带，以及多个小区。该方法包括以下步骤：将每个小区的预定数量的子信道分配为与预定条件匹配的AMC子信道，以便将AMC方案应用于AMC子信道，以及分配除AMC之外的剩余子信道子频道作为FH-OFDMA子信道，以便将FH-OFDMA方案应用于FH-OFDMA子信道。

44. 发明申请

US20050152266A1 Apparatus and method for canceling interference signal in an orthogonal frequency division multiplexing system using multiple antennas 审中-公开
标题翻译：在使用多个天线的正交频分复用系统中消除干扰信号的装置和方法
公开(公告)号：US20050152266A1
公开(公告)日：2005-07-14
申请号：US10982581
申请日：2004-11-05
申请人： Chan-Soo Hwang , Kee-Bong Song , Dong-Jun Lee
发明人： Chan-Soo Hwang , Kee-Bong Song , Dong-Jun Lee
IPC分类号： H04J99/00 , H04B7/04 , H04J11/00 , H04L1/00 , H04L1/06 , H04L27/26
CPC分类号： H04L1/0071 , H04L1/06
摘要： An apparatus and method for canceling interference in an OFDM system using multiple antennas, where based on error estimation of a symbol received from a receive antenna, the error of a symbol received from another receive antenna is estimated. Prior to transmission, symbols to be transmitted through a plurality of transmit antennas are shifted by a predetermined number of bits without overlapping. Thus, the effects of an error of a symbol received from a receive antenna on error estimation of a symbol received from another receive antenna are reduced.
摘要翻译：使用多个天线来消除OFDM系统中的干扰的装置和方法，其中基于从接收天线接收到的符号的误差估计，估计从另一个接收天线接收的符号的误差。在发送之前，要通过多个发送天线发送的符号被移位预定数量的比特而不重叠。因此，从接收天线接收的符号的误差对从另一接收天线接收的符号的误差估计的影响减小。

45. 发明申请

US20150043720A1 APPARATUS, SYSTEMS AND METHODS OF COMMON-MODE REJECTION RATIO BASED DIAGNOSTICS 有权
标题翻译：共模抑制率比较法的设备，系统与方法
公开(公告)号：US20150043720A1
公开(公告)日：2015-02-12
申请号：US14384368
申请日：2012-03-12
申请人： Chan-Soo Hwang , Geoffrey G. Moyer , Mark B. Flowers , Mehdi Mohseni
发明人： Chan-Soo Hwang , Geoffrey G. Moyer , Mark B. Flowers , Mehdi Mohseni
IPC分类号： H04L12/24 , H04M3/30
CPC分类号： H04L41/0631 , H04M3/305 , H04M3/306 , H04M11/062
摘要： In accordance with embodiments disclosed herein, there are provided apparatus, systems and methods for detecting a boundary condition via common mode diagnostics; and to apparatus, systems and methods for detecting a fault condition via common-mode rejection ratio diagnostics. For example, in one embodiment such means include, means for injecting differential mode signal probes onto two conductors of a Digital Subscriber Line (DSL line); means for measuring a common-mode rejection ratio (CMRR) of the differential mode signal probes; means for measuring impedance of the differential mode signal probes; and means for identifying which of an asymmetric fault condition or a symmetric fault condition is present on the line based on both: (a) the measured CMRR of the differential mode signal probes and (b) the measured impedance of the differential mode signal probes.
摘要翻译：根据本文公开的实施例，提供了通过共模诊断来检测边界条件的装置，系统和方法; 以及用于通过共模抑制比诊断来检测故障状态的装置，系统和方法。例如，在一个实施例中，这种装置包括用于将差模信号探针注入到数字用户线（DSL线路）的两个导体上的装置; 用于测量差模信号探头的共模抑制比（CMRR）的装置; 用于测量差模信号探头阻抗的装置; 以及用于基于以下两者来识别在线上存在不对称故障状况或对称故障状况中的哪一个的装置：（a）差模信号探头的测量CMRR和（b）差模信号探针的测量阻抗。

46. 发明授权

US07532911B2 Random beamforming method for a MIMO system 有权
标题翻译： MIMO系统的随机波束成形方法
公开(公告)号：US07532911B2
公开(公告)日：2009-05-12
申请号：US11392433
申请日：2006-03-29
申请人： Jong-Hyung Kwun , Chan-Soo Hwang , Eun-Yong Kim , Joo-Hwan Chun
发明人： Jong-Hyung Kwun , Chan-Soo Hwang , Eun-Yong Kim , Joo-Hwan Chun
IPC分类号： H04M1/00 , H04B1/16 , H04B1/10
CPC分类号： H04B7/0452 , H04B7/0443 , H04B7/0606 , H04B7/0617
摘要： A transmission method based on random beamforming. A base station receives, from mobile stations, feedback information including channel-by-channel transmission rates for a weight vector arbitrarily set by the base station. The base station compares transmission rates of identical channels received from the mobile stations. The base station allocates an associated channel to a mobile station with a large transmission rate and transmits a signal through the allocated channel. The transmission method based on random beamforming can improve fairness and efficiency of a resource allocation by simultaneously allocating different channels to multiple terminals and can increase a total system capacity through the improved fairness and efficiency.
摘要翻译：一种基于随机波束成形的传输方法。基站从移动台接收由基站任意设定的加权矢量的逐个信道传输速率的反馈信息。基站比较从移动站接收的相同信道的传输速率。基站向具有大传输速率的移动台分配相关信道，并通过分配的信道发送信号。基于随机波束成形的传输方法可以通过同时向多个终端分配不同的信道来提高资源分配的公平性和效率，并可以通过提高公平性和效率来提高总系统容量。

47. 发明申请

US20050249319A1 Apparatus and method for channel estimation in an orthogonal frequency division multiplexing cellular communication system using multiple transmit antennas 有权
标题翻译：在使用多个发射天线的正交频分复用蜂窝通信系统中的信道估计的装置和方法
公开(公告)号：US20050249319A1
公开(公告)日：2005-11-10
申请号：US11110037
申请日：2005-04-20
申请人： Chang-Ho Suh , Chan-Soo Hwang , Seok-Hyun Yoon , Young-Kwon Cho
发明人： Chang-Ho Suh , Chan-Soo Hwang , Seok-Hyun Yoon , Young-Kwon Cho
IPC分类号： H04J11/00 , H04B7/08 , H04B7/10 , H04J99/00 , H04L1/06 , H04L25/02 , H04L27/26
CPC分类号： H04L25/0228 , H04B7/08 , H04L1/0618 , H04L25/0242 , H04L27/261 , H04L27/2626 , H04L27/2647
摘要： An apparatus and method for channel estimation using preamble signals received from a serving Node B and neighboring Node Bs each having N (≧1) transmit antennas in a UE having M (≧1) receive antennas in a broadband wireless communication system. In the channel estimation apparatus, a Node B number decider calculates the maximum number NS of channel-estimatable Node Bs using a preamble length, the number of antennas in each of the Node Bs, and the number of multiple paths. A multi-cell preamble matrix generator generates a multi-cell preamble matrix xS by generating a Node B preamble matrix for each of the Node Bs and selecting NS Node B preamble matrices according to reception power among the Node B preamble matrices. A channel estimator performs a channel estimation using xS and signals received through the M antennas during a preamble receiving period.
摘要翻译：在宽带无线通信系统中，在具有M（> = 1）个接收天线的UE中，从服务节点B和每个具有N（> = 1）个发射天线的相邻节点B接收的前导码信号的信道估计的装置和方法。在信道估计装置中，节点B号码判定器使用前导码长度，每个节点B中的天线数量和信道估计装置的数量来计算信道可估计节点B的最大数量N S S 多路径多小区前导码矩阵生成器通过为每个节点B生成节点B前同步码矩阵并且选择节点B前导码来生成多小区前导矩阵x S S 根据节点B前同步码矩阵中的接收功率的矩阵。信道估计器在前导码接收周期期间使用x S S和通过M个天线接收的信号来执行信道估计。

48. 发明申请

US20050013381A1 Apparatus and method for transmitting/receiving preamble sequence in orthogonal frequency division multiplexing communication system using plurality of transmission antennas 有权
标题翻译：在使用多个发送天线的正交频分复用通信系统中发送/接收前置码序列的装置和方法
公开(公告)号：US20050013381A1
公开(公告)日：2005-01-20
申请号：US10891613
申请日：2004-07-15
申请人： Chang-Ho Suh , Chan-Soo Hwang , Katz Daniel , Chan-Byoung Chae , Ho-Kyu Choi
发明人： Chang-Ho Suh , Chan-Soo Hwang , Katz Daniel , Chan-Byoung Chae , Ho-Kyu Choi
IPC分类号： H04J11/00 , H04B7/06 , H04K1/10 , H04L27/26
CPC分类号： H04J13/0014 , H04B7/068 , H04J11/003 , H04J13/16 , H04L5/0023 , H04L5/0048 , H04L25/0204 , H04L25/0226 , H04L27/262 , H04L27/2657
摘要： A method for generating a preamble sequence in an OFDM (Orthogonal Frequency Division Multiplexing) communication system that uses A sub-carriers in a frequency domain and uses N Tx (Transmission) antennas, includes the steps of: generating N sequences, each having a length of ‘B/N’, by dividing B sub-carriers from among the A sub-carriers by the ‘N’ indicative of the number of the Tx antennas; and mapping, for each of the N sequences, individual components of the sequence to the B/N sub-carriers from among the A sub-carriers on a one by one basis in order to assign the components of the sequence to the B/N sub-carriers, and assigning null data to remaining sub-carriers other than the B/N sub-carriers from among the A-sub-carriers, such that a preamble sequence of a corresponding Tx antenna is generated.
摘要翻译：一种在频域中使用A个子载波并使用N Tx（发送）天线的OFDM（正交频分复用）通信系统中生成前置码序列的方法，包括以下步骤：生成N个序列，每个序列具有长度通过将A个副载波中的B个子载波除以指示Tx天线数量的“N”，将“B / N”分配给“B / N” 并且对于N个序列中的每一个，将序列的各个分量逐一地映射到A个子载波中的B / N个子载波，以便将该序列的分量分配给B / N 并且将空值数据分配给来自A子载波的B / N个子载波以外的剩余子载波，从而生成对应的Tx天线的前导码序列。

49. 发明授权

US09420090B2 Diagnostic methods for twisted pair telephone lines based on line data distribution analysis 有权
标题翻译：基于线数据分布分析的双绞线电话线诊断方法
公开(公告)号：US09420090B2
公开(公告)日：2016-08-16
申请号：US14394074
申请日：2012-04-13
申请人： Mehdi Mohseni , Mohamad Charafeddine , Chan-Soo Hwang , Ardavan Maleki Tehrani
发明人： Mehdi Mohseni , Mohamad Charafeddine , Chan-Soo Hwang , Ardavan Maleki Tehrani
IPC分类号： H04M1/24 , H04M3/08 , H04M3/22 , H04M3/30
CPC分类号： H04M3/2209 , H04M3/085 , H04M3/306 , H04M2201/18
摘要： Methods and systems for twisted pair telephone line diagnostics based on patterns of line data occurring over time. An observed data distribution is classified as periodic or based on modeled distributions previously determined to correspond to a known line activity, fault type, or fault location. A disruption or parameter value pattern is classified through statistical inference of operational and performance data collected from the line. Where the disruption and/or parameter value(s) correlate with a time the customer is at the customer premises, an inference is made that the line fault causing the disruption is more likely at the CPE than at the Central Office. Where the disruption distribution is classified as being a result of human activities initiated on the line, a fault condition associated with the activity is inferred. Where a disruption pattern is correlated with human initiated plain old telephone service (POTS), a micro-filter problem is inferred for the line.
摘要翻译：基于线路数据模式的双绞电话线路诊断方法和系统随着时间的推移发生。观察到的数据分布被分类为周期性或基于先前确定为对应于已知线路活动，故障类型或故障位置的建模分布。通过从行中收集的操作和性能数据的统计推断，分类干扰或参数值模式。如果中断和/或参数值与客户在客户处所的时间相关联，则推断导致中断的线路故障在CPE上比在中心局更可能。如果中断分布被分类为在线启动的人类活动的结果，则推断与活动相关的故障状况。在破坏模式与人类发起的普通老式电话服务（POTS）相关联的情况下，推断出一个微过滤器问题。

50. 发明授权

US09391834B2 Apparatus, systems and methods of common-mode rejection ratio based diagnostics 有权
标题翻译：基于共模抑制比的诊断装置，系统和方法
公开(公告)号：US09391834B2
公开(公告)日：2016-07-12
申请号：US14384368
申请日：2012-03-12
申请人： Chan-Soo Hwang , Geoffrey G. Moyer , Mark B. Flowers , Mehdi Mohseni
发明人： Chan-Soo Hwang , Geoffrey G. Moyer , Mark B. Flowers , Mehdi Mohseni
IPC分类号： H04M1/24 , H04M3/08 , H04M3/22 , H04L12/24 , H04M3/30 , H04M11/06
CPC分类号： H04L41/0631 , H04M3/305 , H04M3/306 , H04M11/062
摘要： In accordance with embodiments disclosed herein, there are provided apparatus, systems and methods for detecting a boundary condition via common mode diagnostics; and to apparatus, systems and methods for detecting a fault condition via common-mode rejection ratio diagnostics. For example, in one embodiment such means include, means for injecting differential mode signal probes onto two conductors of a Digital Subscriber Line (DSL line); means for measuring a common-mode rejection ratio (CMRR) of the differential mode signal probes; means for measuring impedance of the differential mode signal probes; and means for identifying which of an asymmetric fault condition or a symmetric fault condition is present on the line based on both: (a) the measured CMRR of the differential mode signal probes and (b) the measured impedance of the differential mode signal probes.
摘要翻译：根据本文公开的实施例，提供了通过共模诊断来检测边界条件的装置，系统和方法; 以及用于通过共模抑制比诊断来检测故障状态的装置，系统和方法。例如，在一个实施例中，这种装置包括用于将差模信号探针注入到数字用户线（DSL线路）的两个导体上的装置; 用于测量差模信号探头的共模抑制比（CMRR）的装置; 用于测量差模信号探头阻抗的装置; 以及用于基于以下两者来识别在线上存在不对称故障状况或对称故障状况中的哪一个的装置：（a）差模信号探头的测量CMRR和（b）差模信号探针的测量阻抗。

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