公开(公告)号：US20050097409A1

公开(公告)日：2005-05-05

申请号：US10895154

申请日：2004-07-19

申请人： Cheol-Ho Shin ,  Chang-Joo Kim ,  Hyung-Soo Lee ,  Sangsung Choi ,  Il-Kyoo Lee

发明人： Cheol-Ho Shin ,  Chang-Joo Kim ,  Hyung-Soo Lee ,  Sangsung Choi ,  Il-Kyoo Lee

IPC分类号： H04L12/28 ,  G06F11/00 ,  H04B7/005 ,  H04J3/00

CPC分类号： H04W52/12 ,  H04W52/20 ,  H04W52/24

摘要： Disclosed is a method for controlling a power level based on a packet error rate (PER) in a wireless personal area network (WPAN) system. The method for controlling a power level based on a packet error rate (PER) in a wireless personal area network (WPAN) system, includes the steps of: a) at a receiver, computing a PER of a packet in an initial check duration of PER (DP) wherein a transmission power level of the packet is set by a piconet coordinator (PNC); b) at the receiver, determining whether the computed PER satisfies a target PER, adjusting a target signal-to-interference ratio (SIR) and requesting a transmitter to adjust the initial transmission power level; and c) at the receiver, determining whether the number (N) of successive G is larger than a power control threshold, wherein G denotes DP satisfying the target PER, changing the target SIR based on the determination result whether the number (N) of successive G is larger than the power control threshold, and requesting the transmitter to adjust the possible transmission power level.

摘要翻译： 公开了一种基于无线个域网（WPAN）系统中的分组差错率（PER）来控制功率电平的方法。 基于无线个域网（WPAN）系统中的分组差错率（PER）来控制功率电平的方法包括以下步骤：a）在接收机处，在初始检测持续时间内计算分组的PER PER（DP），其中分组的发射功率电平由微微网协调器（PNC）设置; b）在接收机处，确定所计算的PER是否满足目标PER，调整目标信号干扰比（SIR）并请求发射机调整初始发射功率电平; 以及c）在接收器处，确定连续G的数量N是否大于功率控制阈值，其中G表示满足目标PER的DP，根据确定结果改变目标SIR，是否为（N） 连续G大于功率控制阈值，并请求发射机调整可能的发射功率电平。

公开(公告)号：US07400899B2

公开(公告)日：2008-07-15

申请号：US10895154

申请日：2004-07-19

申请人： Cheol-Ho Shin ,  Chang-Joo Kim ,  Hyung-Soo Lee ,  Sangsung Choi ,  Il-Kyoo Lee

发明人： Cheol-Ho Shin ,  Chang-Joo Kim ,  Hyung-Soo Lee ,  Sangsung Choi ,  Il-Kyoo Lee

IPC分类号： H04B7/00

CPC分类号： H04W52/12 ,  H04W52/20 ,  H04W52/24

摘要： Disclosed is a method for controlling a power level based on a packet error rate (PER) in a wireless personal area network (WPAN) system. The method for controlling a power level based on a packet error rate (PER) in a wireless personal area network (WPAN) system, includes the steps of: a) at a receiver, computing a PER of a packet in an initial check duration of PER (DP) wherein a transmission power level of the packet is set by a piconet coordinator (PNC); b) at the receiver, determining whether the computed PER satisfies a target PER, adjusting a target signal-to-interference ratio (SIR) and requesting a transmitter to adjust the initial transmission power level; and c) at the receiver, determining whether the number (N) of successive G is larger than a power control threshold, wherein G denotes DP satisfying the target PER, changing the target SIR based on the determination result whether the number (N) of successive G is larger than the power control threshold, and requesting the transmitter to adjust the possible transmission power level.

摘要翻译： 公开了一种基于无线个域网（WPAN）系统中的分组差错率（PER）来控制功率电平的方法。 基于无线个域网（WPAN）系统中的分组差错率（PER）来控制功率电平的方法包括以下步骤：a）在接收机处，在初始检测持续时间内计算分组的PER PER（DP），其中分组的发射功率电平由微微网协调器（PNC）设置; b）在接收机处，确定所计算的PER是否满足目标PER，调整目标信号干扰比（SIR）并请求发射机调整初始发射功率电平; 以及c）在接收器处，确定连续G的数量N是否大于功率控制阈值，其中G表示满足目标PER的DP，根据确定结果改变目标SIR，是否为（N） 连续G大于功率控制阈值，并请求发射机调整可能的发射功率电平。

公开(公告)号：US08300676B2

公开(公告)日：2012-10-30

申请号：US12536929

申请日：2009-08-06

申请人： Cheol-Ho Shin ,  Byoung Hak Kim ,  Jong Won Kim ,  Sangsung Choi ,  Kwang Roh Park

发明人： Cheol-Ho Shin ,  Byoung Hak Kim ,  Jong Won Kim ,  Sangsung Choi ,  Kwang Roh Park

IPC分类号： H04B1/00

CPC分类号： H04L27/0006

摘要： A communication apparatus generates a digital detection signal including a plurality of time symbols by digital-converting a detection signal corresponding to a received signal, estimates an average power value of the detection signal by calculating average power of the digital detection signal based on the digital detection signal, and performs UWB communication through a predetermined first channel when a predetermined reference power value is greater than the average power value.

摘要翻译： 通信装置通过对与接收信号相对应的检测信号进行数字转换来生成包括多个时间符号的数字检测信号，通过基于数字检测来计算数字检测信号的平均功率来估计检测信号的平均功率值 信号，并且当预定参考功率值大于平均功率值时，通过预定的第一通道执行UWB通信。

公开(公告)号：US20100124252A1

公开(公告)日：2010-05-20

申请号：US12536929

申请日：2009-08-06

申请人： Cheol-Ho Shin ,  Byoung Hak Kim ,  Jong Won Kim ,  Sangsung Choi ,  Kwang Roh Park

发明人： Cheol-Ho Shin ,  Byoung Hak Kim ,  Jong Won Kim ,  Sangsung Choi ,  Kwang Roh Park

IPC分类号： H04B1/69

CPC分类号： H04L27/0006

摘要： A communication apparatus generates a digital detection signal including a plurality of time symbols by digital-converting a detection signal corresponding to a received signal, estimates an average power value of the detection signal by calculating average power of the digital detection signal based on the digital detection signal, and performs UWB communication through a predetermined first channel when a predetermined reference power value is greater than the average power value.

摘要翻译： 通信装置通过对与接收信号相对应的检测信号进行数字转换来生成包括多个时间符号的数字检测信号，通过基于数字检测来计算数字检测信号的平均功率来估计检测信号的平均功率值 信号，并且当预定参考功率值大于平均功率值时，通过预定的第一通道执行UWB通信。

公开(公告)号：US20070133392A1

公开(公告)日：2007-06-14

申请号：US11635272

申请日：2006-12-07

申请人： Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Kyu-Min Kang ,  Sang-Sung Choi ,  Kwang-Roh Park

发明人： Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Kyu-Min Kang ,  Sang-Sung Choi ,  Kwang-Roh Park

IPC分类号： H04J11/00 ,  H04J1/00

CPC分类号： H04B1/7183 ,  H04L27/2605 ,  H04L27/265 ,  H04L27/2665

摘要： Provided is a method for adjusting Fast Fourier Transform (FFT) window positioning in a Multi Band Orthogonal Frequency Division Multiplexing Ultra-Wideband (MB-OFDM UWB) system. The method includes the steps of acquiring an initial FFT window position and a frequency hopping position, demodulating a received signal by using the initial FFT window position and the frequency hopping position acquired in the acquiring step, transmitting received data information to a Media Access Control (MAC) layer with a reception frame (RX frame) structure and judging at the MAC layer whether or not a packet error is occurred based on Frame Check Sequences (FCSs), and if no packet error is occurred, returning to the demodulating step, and if the packet error is occurred, changing a register map by using a predetermined interface line in a MAC-physical layer (MAC-PHY) interface to thereby adjust the FFT window position and the frequency hopping position, and then returning to the demodulating step.

摘要翻译： 提供了一种用于在多频带正交频分复用超宽带（MB-OFDM UWB）系统中调整快速傅里叶变换（FFT）窗口定位的方法。 该方法包括以下步骤：获取初始FFT窗口位置和跳频位置，通过使用在获取步骤中获取的初始FFT窗口位置和跳频位置解调接收信号，将接收的数据信息发送到介质访问控制（ MAC）层，并且在MAC层判断基于帧检查序列（FCS）是否发生分组错误，并且如果没有发生分组错误，则返回到解调步骤，并且 如果发生分组错误，则通过使用MAC-物理层（MAC-PHY）接口中的预定接口线来改变寄存器映射，从而调整FFT窗口位置和跳频位置，然后返回到解调步骤。

公开(公告)号：US07729238B2

公开(公告)日：2010-06-01

申请号：US11635272

申请日：2006-12-07

申请人： Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Kyu-Min Kang ,  Sang-Sung Choi ,  Kwang-Roh Park

发明人： Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Kyu-Min Kang ,  Sang-Sung Choi ,  Kwang-Roh Park

IPC分类号： H04J11/00

CPC分类号： H04B1/7183 ,  H04L27/2605 ,  H04L27/265 ,  H04L27/2665

摘要： Provided is a method for adjusting Fast Fourier Transform (FFT) window positioning in a Multi Band Orthogonal Frequency Division Multiplexing Ultra-Wideband (MB-OFDM UWB) system. The method includes the steps of acquiring an initial FFT window position and a frequency hopping position, demodulating a received signal by using the initial FFT window position and the frequency hopping position acquired in the acquiring step, transmitting received data information to a Media Access Control (MAC) layer with a reception frame (RX frame) structure and judging at the MAC layer whether or not a packet error is occurred based on Frame Check Sequences (FCSs), and if no packet error is occurred, returning to the demodulating step, and if the packet error is occurred, changing a register map by using a predetermined interface line in a MAC-physical layer (MAC-PHY) interface to thereby adjust the FFT window position and the frequency hopping position, and then returning to the demodulating step.

摘要翻译： 提供了一种用于在多频带正交频分复用超宽带（MB-OFDM UWB）系统中调整快速傅里叶变换（FFT）窗口定位的方法。 该方法包括以下步骤：获取初始FFT窗口位置和跳频位置，通过使用在获取步骤中获取的初始FFT窗口位置和跳频位置解调接收信号，将接收的数据信息发送到介质访问控制（ MAC）层，并且在MAC层判断基于帧检查序列（FCS）是否发生分组错误，并且如果没有发生分组错误，则返回到解调步骤，并且 如果发生分组错误，则通过使用MAC-物理层（MAC-PHY）接口中的预定接口线来改变寄存器映射，从而调整FFT窗口位置和跳频位置，然后返回到解调步骤。

公开(公告)号：US20070133670A1

公开(公告)日：2007-06-14

申请号：US11635937

申请日：2006-12-08

申请人： Kyu-Min Kang ,  Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Sang-Sung Choi ,  Kwang-Rob Park

发明人： Kyu-Min Kang ,  Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Sang-Sung Choi ,  Kwang-Rob Park

IPC分类号： H03H7/30

CPC分类号： H04L25/03038 ,  H04L2025/03439

摘要： A parallel equalizer for a DS-CDMA UWB system and method thereof are provided. The parallel equalizer includes: a filter block for filtering a training input signal in a ‘training mode’, and filtering the plurality of input signals in parallel in a ‘symbol decision mode’; a symbol decision block for obtaining a symbol error based on a output from the filter block and a training symbol in the ‘training mode’, and estimating a transmission symbol for each of the input signals in the ‘symbol decision mode’, obtaining an error of one among the estimated transmission symbols for a symbol error calculating input signal; and an weight update block for updating a filter tap coefficients of the filter block based on the training input signal or the symbol error calculating input signal and the symbol error and transmitting the updated filter tap coefficients into the filter block.

摘要翻译： 提供了一种用于DS-CDMA UWB系统的并行均衡器及其方法。 并行均衡器包括：滤波器块，用于以“训练模式”对训练输入信号进行滤波，并且以“符号判定模式”并行地对多个输入信号进行滤波; 用于基于来自滤波块的输出和“训练模式”中的训练符号获得符号误差的符号判定块，并且以“符号判定模式”为每个输入信号估计发送符号，获得误差 估计的传输符号中的一个用于符号误差计算输入信号; 以及权重更新块，用于基于训练输入信号或符号误差计算输入信号和符号误差来更新滤波器块的滤波器抽头系数，并将更新的滤波器抽头系数发送到滤波器块。

公开(公告)号：US08009728B2

公开(公告)日：2011-08-30

申请号：US11635937

申请日：2006-12-08

申请人： Kyu-Min Kang ,  Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Sang-Sung Choi ,  Kwang-Roh Park

发明人： Kyu-Min Kang ,  Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Sang-Sung Choi ,  Kwang-Roh Park

IPC分类号： H03H7/30

CPC分类号： H04L25/03038 ,  H04L2025/03439

摘要： A parallel equalizer for a DS-CDMA UWB system and method thereof are provided. The parallel equalizer includes: a filter block for filtering a training input signal in a ‘training mode’, and filtering the plurality of input signals in parallel in a ‘symbol decision mode’; a symbol decision block for obtaining a symbol error based on a output from the filter block and a training symbol in the ‘training mode’, and estimating a transmission symbol for each of the input signals in the ‘symbol decision mode’, obtaining an error of one among the estimated transmission symbols for a symbol error calculating input signal; and an weight update block for updating a filter tap coefficients of the filter block based on the training input signal or the symbol error calculating input signal and the symbol error and transmitting the updated filter tap coefficients into the filter block.

摘要翻译： 提供了一种用于DS-CDMA UWB系统的并行均衡器及其方法。 并行均衡器包括：滤波器块，用于以“训练模式”对训练输入信号进行滤波，并且以“符号判定模式”并行地对多个输入信号进行滤波; 用于基于来自滤波块的输出和“训练模式”中的训练符号获得符号误差的符号判定块，并且以“符号判定模式”为每个输入信号估计发送符号，获得误差 估计的传输符号中的一个用于符号误差计算输入信号; 以及权重更新块，用于基于训练输入信号或符号误差计算输入信号和符号错误来更新滤波器块的滤波器抽头系数，并将更新的滤波器抽头系数发送到滤波器块中。

公开(公告)号：US07924953B2

公开(公告)日：2011-04-12

申请号：US11948179

申请日：2007-11-30

申请人： Sung-Woo Choi ,  Cheol-Ho Shin ,  Kyu-Min Kang ,  Sang-Sung Choi

发明人： Sung-Woo Choi ,  Cheol-Ho Shin ,  Kyu-Min Kang ,  Sang-Sung Choi

IPC分类号： H04L27/06 ,  H04L7/00 ,  H04B1/69

CPC分类号： H04B1/713 ,  H04B1/709 ,  H04L5/0007 ,  H04L5/0037 ,  H04L27/2655 ,  H04L27/2675

摘要： Provided is an apparatus and method for detecting a time-frequency code in an MB-OFDM UWB system. The apparatus includes a controller for providing a band selection signal to the RF receiver and outputting a preamble selection signal at regular symbol periods to calculate a cross correlation value for a predetermined time period more than a beacon frame interval when a time-frequency code search start signal is received; and a cross correlator for storing information on preamble patterns, selecting a preamble stored depending on the preamble selection signal, and calculating a cross correlation value for a digital signal transferred through the RF receiver, wherein the controller determines a time-frequency code using a preamble where a peak occurs as a time-frequency code that is currently in use when a peak signal is inputted based on the calculated cross correlation value, and transmits the determined time-frequency code to the MAC receiver.

摘要翻译： 提供了一种用于检测MB-OFDM UWB系统中的时间 - 频率代码的装置和方法。 该装置包括控制器，用于向RF接收机提供频带选择信号，并以规则符号周期输出前导码选择信号，以便在时间频率代码搜索开始时比信标帧间隔多一个预定时间段内的互相关值 信号被接收; 以及交叉相关器，用于存储关于前导码模式的信息，选择根据前导选择信号存储的前导码，以及计算通过RF接收机传送的数字信号的互相关值，其中控制器使用前导码确定时间频率码 其中当基于所计算的互相关值输入峰值信号时作为当前正在使用的时间频率代码发生峰值，并将所确定的时间频率代码发送到MAC接收机。

公开(公告)号：US07660339B2

公开(公告)日：2010-02-09

申请号：US11634006

申请日：2006-12-05

申请人： Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Kyu-Min Kang ,  Sang-Sung Choi ,  Kwang-Roh Park

发明人： Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Kyu-Min Kang ,  Sang-Sung Choi ,  Kwang-Roh Park

IPC分类号： H04B1/18 ,  H04B1/00

CPC分类号： H04L27/2657 ,  H04B1/7143 ,  H04B1/7163 ,  H04B2001/7154 ,  H04L27/2676

摘要： Provided are an apparatus and method for estimating and correcting a frequency offset in a multiband-Orthogonal Frequency Division Multiplexing Ultra-Wideband system using a time frequency hopping. The method includes the steps of: calculating a tangent input having a first value (X) and a second value (Y) by using PS symbols transferred over same frequency band with respect to one of a plurality of frequency bands used for frequency hopping; calculating tan(X/Y) using the first value (X) and the second value (Y), and calculating an index corresponding to the value of tan(X/Y) from a look-up table created by reflecting a relative frequency offset with respect to a center frequency; calculating indexes representing frequency offsets estimated with respect to remaining frequency bands used for frequency hopping from the look-up table by using the calculated index; extracting an index of a numerical controlled oscillator according to correction positions with respect to a plurality of frequency bands by using the calculated indexes; and correcting the frequency offsets estimated using the extracted indexes according to time frequency patterns by using a numerical controlled oscillator table.

摘要翻译： 提供了一种用于使用时间跳频估计和校正多频带 - 正交频分复用超宽带系统中的频率偏移的装置和方法。 该方法包括以下步骤：通过使用相对于用于跳频的多个频带之一的相同频带传输的PS符号来计算具有第一值（X）和第二值（Y）的切线输入; 使用第一值（X）和第二值（Y）计算tan（X / Y），并且从通过反映相对频率偏移产生的查找表计算与tan（X / Y）的值相对应的指数 相对于中心频率; 计算表示使用所计算的索引从查找表中跳频所使用的剩余频带估计的频率偏移的索引; 通过使用计算出的索引，根据关于多个频带的校正位置提取数控振荡器的索引; 以及通过使用数控振荡器表，根据时间频率模式校正使用所提取的索引估计的频率偏移。