公开(公告)号：US08787930B2

公开(公告)日：2014-07-22

申请号：US13286716

申请日：2011-11-01

申请人： Uzair Ahmad ,  Wan Sik Choi ,  Sang Joon Park ,  Young Su Cho ,  Do Hyun Kim ,  Dong Kyoo Kim ,  Sung Jo Yun ,  Myung In Ji

发明人： Uzair Ahmad ,  Wan Sik Choi ,  Sang Joon Park ,  Young Su Cho ,  Do Hyun Kim ,  Dong Kyoo Kim ,  Sung Jo Yun ,  Myung In Ji

IPC分类号： H04W24/00

CPC分类号： H04W64/003 ,  G01S5/0242 ,  G01S5/14 ,  G01S11/06 ,  H04W24/10

摘要： A method and apparatus for estimating a position of an access point (AP) includes (a) measuring a strength of a signal, transmitted by the AP, at three or more measurement points (MPs), (b) selecting an imaginary attenuation factor, (c) calculating a range between the AP and each of the MPs on the basis of the imaginary attenuation factor and a strength of a signal measured at the MP, (d) calculating an intersecting point of ranging circles in each of which a position of the MP is a center and the range between the MP and the AP is a radius, (e) calculating a best intersecting point from among a plurality of the intersecting points obtained by repeating the steps (c) and (d) while changing the imaginary attenuation factor, and (f) estimating the best intersecting point as the position of the AP.

摘要翻译： 用于估计接入点（AP）的位置的方法和装置包括：（a）在三个或更多个测量点（MP）处测量由AP发送的信号的强度，（b）选择虚拟衰减因子， （c）基于虚拟衰减因子和在MP处测量的信号的强度来计算AP和每个MP之间的范围，（d）计算测距圆的交点，每个测距圆的位置 MP是中心，MP和AP之间的范围是半径，（e）从重复步骤（c）和（d）获得的多个交点中计算最佳相交点，同时改变虚构 衰减因子，（f）估计最佳相交点作为AP的位置。

公开(公告)号：US20120122475A1

公开(公告)日：2012-05-17

申请号：US13286716

申请日：2011-11-01

申请人： Uzair Ahmed ,  Wan Sik Choi ,  Sang Joon Park ,  Young Su Cho ,  Do Hyun Kim ,  Dong Kyoo Kim ,  Sung Jo Yun ,  Myung In Ji

发明人： Uzair Ahmed ,  Wan Sik Choi ,  Sang Joon Park ,  Young Su Cho ,  Do Hyun Kim ,  Dong Kyoo Kim ,  Sung Jo Yun ,  Myung In Ji

IPC分类号： H04W24/00

CPC分类号： H04W64/003 ,  G01S5/0242 ,  G01S5/14 ,  G01S11/06 ,  H04W24/10

摘要： A method and apparatus for estimating a position of an access point (AP) in a Wi-Fi system is provided. The method includes measuring a strength of a signal, transmitted by the AP, at three or more measurement points (MPs), selecting an imaginary attenuation factor, calculating a range between the AP and each of the MPs on the basis of the imaginary attenuation factor and a strength of a signal measured at the MP, calculating an intersecting point of ranging circles in each of which a position of the MP is a center and the range between the MP and the AP is a radius, calculating a best intersecting point from among a plurality of the intersecting points obtained by repeating the calculating the range and the calculating the intersecting point of ranging circles while changing the imaginary attenuation factor, and estimating the best intersecting point as the position of the AP.

摘要翻译： 提供了一种用于估计Wi-Fi系统中接入点（AP）的位置的方法和装置。 该方法包括测量由AP发送的信号在三个或更多个测量点（MP）处的强度，选择虚拟衰减因子，基于虚拟衰减因子计算AP与每个MP之间的范围 以及在MP处测量的信号的强度，计算MP中的每个位置为中心的测距圆的交点，MP与AP之间的范围为半径，从其中计算最佳相交点，从 通过重复计算范围而获得的多个交点，并且在改变虚拟衰减因子的同时计算测距圆的相交点，并且估计最佳相交点作为AP的位置。

公开(公告)号：US20100268752A1

公开(公告)日：2010-10-21

申请号：US12747599

申请日：2008-05-16

申请人： Dong Kyoo Kim ,  Jae Young Kim

发明人： Dong Kyoo Kim ,  Jae Young Kim

IPC分类号： G06F17/10 ,  H04B1/10

CPC分类号： H04L25/0204 ,  H04L25/0224 ,  H04L25/03057 ,  H04L2025/03414 ,  H04L2025/03484

摘要： Provided is an apparatus and method for estimating high-integration, high-speed and pipelined RLSs. Pipeline characteristics are given to an RLS algorithm to provide a high-speed HIP-RLS estimation apparatus. The HIP-RLS estimation apparatus has higher integration level than a conventional CORDIC-based RLS estimation apparatus. Thus, the use of the HIP-RLS estimation apparatus can reduce a chip size, thereby making it possible to fabricate more chips using the same wafer. Also, the HIP-RLS estimation apparatus is suitable for high-speed wireless communication because it has a high signal processing speed.

摘要翻译： 提供了一种用于估计高集成，高速和流水线RLS的装置和方法。 给出了RLS算法的管道特性，以提供高速HIP-RLS估计装置。 HIP-RLS估计装置的集成度高于常规的基于CORDIC的RLS估计装置。 因此，使用HIP-RLS估计装置可以减小芯片尺寸，从而可以使用相同的晶片制造更多的芯片。 此外，HIP-RLS估计装置由于具有高的信号处理速度，因此适用于高速无线通信。

公开(公告)号：US08351411B2

公开(公告)日：2013-01-08

申请号：US12679066

申请日：2008-05-16

申请人： Dong Kyoo Kim ,  Jae Young Kim ,  Kwang Roh Park

发明人： Dong Kyoo Kim ,  Jae Young Kim ,  Kwang Roh Park

IPC分类号： H04B7/216

CPC分类号： H04L25/03159 ,  H04L25/0224

摘要： Provided are a system for channel sounding of broadband single carrier mobile communications and a method thereof. A channel sounding device is provided, which achieves precise modeling of a broadband mobile communication in a 5 GHz band. The channel sounding device can perform precise channel modeling by collecting broadband channel data of 20 MHz between a base station and a mobile station moving at maximum 150 km/h, using a sounding signal including a 802.15.3 preamble, a maximum length sequence (MLS) signal, and a single carrier frequency domain equalization (SC-FDE) symbol overcoming a limitation of signal distortion of an orthogonal frequency division multiplexing (OFDM) signal. The channel sounding device can simultaneously perform modeling of interference of an adjacent channel as well as a transmission channel.

摘要翻译： 提供一种用于宽带单载波移动通信的信道探测的系统及其方法。 提供了一种通道探测装置，实现了5 GHz频带宽带移动通信的精确建模。 通道探测装置可以通过采集包含802.15.3前同步码，最大长度序列（MLS）的探测信号，在基站和最大150 km / h移动的移动站之间收集20 MHz的宽带信道数据，进行精确的信道建模 ）信号，以及克服正交频分复用（OFDM）信号的信号失真的限制的单载波频域均衡（SC-FDE）符号。 信道探测装置可以同时执行相邻信道以及传输信道的干扰建模。

公开(公告)号：US20110205911A1

公开(公告)日：2011-08-25

申请号：US12679066

申请日：2008-05-16

申请人： Dong Kyoo Kim ,  Jae Young Kim ,  Kwang Roh Park

发明人： Dong Kyoo Kim ,  Jae Young Kim ,  Kwang Roh Park

IPC分类号： H04W24/00 ,  H04L27/00 ,  H04B17/00 ,  H04W56/00

CPC分类号： H04L25/03159 ,  H04L25/0224

摘要： Provided are a system for channel sounding of broadband single carrier mobile communications and a method thereof. A channel sounding device is provided, which achieves precise modeling of a broadband mobile communication in a 5 GHz band. The channel sounding device can perform precise channel modeling by collecting broadband channel data of 20 MHz between a base station and a mobile station moving at maximum 150 km/h, using a sounding signal including a 802.15.3 preamble, a maximum length sequence (MLS) signal, and a single carrier frequency domain equalization (SC-FDE) symbol overcoming a limitation of signal distortion of an orthogonal frequency division multiplexing (OFDM) signal. The channel sounding device can simultaneously perform modeling of interference of an adjacent channel as well as a transmission channel.

摘要翻译： 提供一种用于宽带单载波移动通信的信道探测的系统及其方法。 提供了一种通道探测装置，实现了5 GHz频带宽带移动通信的精确建模。 通道探测装置可以通过采集包含802.15.3前同步码，最大长度序列（MLS）的探测信号，在基站和最大150 km / h移动的移动站之间收集20 MHz的宽带信道数据，进行精确的信道建模 ）信号，以及克服正交频分复用（OFDM）信号的信号失真的限制的单载波频域均衡（SC-FDE）符号。 信道探测装置可以同时执行相邻信道以及传输信道的干扰建模。

公开(公告)号：US20100040129A1

公开(公告)日：2010-02-18

申请号：US12514837

申请日：2007-11-16

申请人： Dong Kyoo Kim ,  Young Jin Kang ,  Jae Young Kim ,  Kwang Roh Park

发明人： Dong Kyoo Kim ,  Young Jin Kang ,  Jae Young Kim ,  Kwang Roh Park

IPC分类号： H04L27/01

CPC分类号： H04L27/2613 ,  H04L25/03114 ,  H04L25/03159 ,  H04L27/38 ,  H04L2027/0026 ,  H04W28/18 ,  Y02D70/144

摘要： Provided are a channel equalization and carrier recovery method and a receiving apparatus thereof. In the method, a receiver of the high speed wireless communication system obtains an initial value of a channel equalization coefficient through non-causal channel estimation in a frequency domain during a preamble transmission section of a packet. High-order QAM signal correction for updating the channel equalization coefficient in a time domain is performed during a data transmission section of the packet. when a payload section starts in the data transmission section of the packet, channel equalization coefficient tracking is performed on the basis of frequency domain decision, and a hard decision of a correction value by the high-order QAM signal correction in the time domain is made to correct carrier phase errors, so that the channel equalization coefficient is updated.

摘要翻译： 提供了一种信道均衡和载波恢复方法及其接收装置。 在该方法中，高速无线通信系统的接收机在分组的前导码发送部分期间通过频域中的非因果信道估计来获得信道均衡系数的初始值。 在分组的数据传输部分期间执行用于更新时域中的信道均衡系数的高阶QAM信号校正。 当在分组的数据发送部分中启动有效载荷部分时，基于频域决定执行信道均衡系数跟踪，并且通过时域中的高阶QAM信号校正进行硬判定校正值 以校正载波相位误差，从而更新信道均衡系数。

公开(公告)号：US08351494B2

公开(公告)日：2013-01-08

申请号：US12514837

申请日：2007-11-16

申请人： Dong Kyoo Kim ,  Young Jin Kang ,  Jae Young Kim ,  Kwang Roh Park

发明人： Dong Kyoo Kim ,  Young Jin Kang ,  Jae Young Kim ,  Kwang Roh Park

IPC分类号： H04L27/01

CPC分类号： H04L27/2613 ,  H04L25/03114 ,  H04L25/03159 ,  H04L27/38 ,  H04L2027/0026 ,  H04W28/18 ,  Y02D70/144

摘要： Provided are a channel equalization and carrier recovery method and a receiving apparatus thereof. In the method, a receiver of the high speed wireless communication system obtains an initial value of a channel equalization coefficient through non-causal channel estimation in a frequency domain during a preamble transmission section of a packet. High-order QAM signal correction for updating the channel equalization coefficient in a time domain is performed during a data transmission section of the packet. when a payload section starts in the data transmission section of the packet, channel equalization coefficient tracking is performed on the basis of frequency domain decision, and a hard decision of a correction value by the high-order QAM signal correction in the time domain is made to correct carrier phase errors, so that the channel equalization coefficient is updated.

摘要翻译： 提供了一种信道均衡和载波恢复方法及其接收装置。 在该方法中，高速无线通信系统的接收机在分组的前导码发送部分期间通过频域中的非因果信道估计来获得信道均衡系数的初始值。 在分组的数据传输部分期间执行用于更新时域中的信道均衡系数的高阶QAM信号校正。 当在分组的数据发送部分中启动有效载荷部分时，基于频域决定执行信道均衡系数跟踪，并且通过时域中的高阶QAM信号校正进行硬判定校正值 以校正载波相位误差，从而更新信道均衡系数。

公开(公告)号：US08284868B2

公开(公告)日：2012-10-09

申请号：US12581253

申请日：2009-10-19

申请人： Dong Kyoo Kim ,  Jaehwan Kim ,  Hyung Soo Lee ,  Jae Young Kim

发明人： Dong Kyoo Kim ,  Jaehwan Kim ,  Hyung Soo Lee ,  Jae Young Kim

IPC分类号： H04L27/12

CPC分类号： H04L27/366

摘要： A modulation device uses two base signal axes including a cosine function and two base signal axes including a sine function to modulate bit information and generate a modulation symbol. Accordingly, the frequency efficiency characteristic is improved while maintaining a great power efficiency characteristic.

摘要翻译： 调制装置使用包括余弦函数的两个基本信号轴和包括正弦函数的两个基本信号轴来调制位信息并产生调制符号。 因此，在保持高功率效率特性的同时提高了频率效率特性。