公开(公告)号：US20050111523A1

公开(公告)日：2005-05-26

申请号：US10721355

申请日：2003-11-26

申请人： Kuang-Ping Ma ,  Aaron Wu ,  Chia-Yung Chiu ,  Chen-Yen Huang ,  Albert Chen

发明人： Kuang-Ping Ma ,  Aaron Wu ,  Chia-Yung Chiu ,  Chen-Yen Huang ,  Albert Chen

IPC分类号： H04B1/707 ,  H04L12/28 ,  H04L25/02 ,  H04B1/69

CPC分类号： H04L25/0228 ,  H04J11/0023 ,  H04L5/00 ,  H04L5/0001 ,  H04W84/12

摘要： A system and method for channel estimation in a wireless local area network. A corresponding channel estimation method includes the steps of: receiving a preamble message and dispreading the preamble message into several symbol signals, each symbol signal containing several discrete signals; determining for each symbol signal a peak sign assignment; establishing several data windows for the symbol signals at the starting points of the discrete signals; multiplying the discrete value of each discrete signal of each data window by the corresponding peak sign assignment and accumulating the product in the first data frame; repeating the above steps for the next discrete signal and accumulating them in the second data frame, . . . , the Nth data frame; computing the accumulated value in the data frames and obtaining the data frame with the maximum value; estimating a channel signal from the previously determined data frame.

摘要翻译： 一种用于无线局域网中的信道估计的系统和方法。 相应的信道估计方法包括以下步骤：接收前同步码消息并将前同步码消息解码成若干符号信号，每个符号信号包含若干离散信号; 为每个符号信号确定峰值符号分配; 在离散信号的起始点建立符号信号的几个数据窗口; 将每个数据窗口的每个离散信号的离散值乘以相应的峰值符号分配并在第一数据帧中累积乘积; 对下一个离散信号重复上述步骤并将其累加在第二数据帧中。 。 。 ，第N个数据帧; 计算数据帧中的累积值并获得具有最大值的数据帧; 从先前确定的数据帧估计信道信号。

公开(公告)号：US07272165B2

公开(公告)日：2007-09-18

申请号：US10721355

申请日：2003-11-26

申请人： Kuang-Ping Ma ,  Aaron Wu ,  Chia-Yung Chiu ,  Chen-Yen Huang ,  Albert Chen

发明人： Kuang-Ping Ma ,  Aaron Wu ,  Chia-Yung Chiu ,  Chen-Yen Huang ,  Albert Chen

IPC分类号： H04B1/00

CPC分类号： H04L25/0228 ,  H04J11/0023 ,  H04L5/00 ,  H04L5/0001 ,  H04W84/12

摘要： A system and method for channel estimation in a wireless local area network. A corresponding channel estimation method includes the steps of: receiving a preamble message and despreading the preamble message into several symbol signals, each symbol signal containing several discrete signals; determining for each symbol signal a peak sign assignment; establishing several data windows for the symbol signals at the starting points of the discrete signals; multiplying the discrete value of each discrete signal of each data window by the corresponding peak sign assignment and accumulating the product in the first data frame; repeating the above steps for the next discrete signal and accumulating them in the second data frame, . . . , the Nth data frame; computing the accumulated value in the data frames and obtaining the data frame with the maximum value; estimating a channel signal from the previously determined data frame.

摘要翻译： 一种用于无线局域网中的信道估计的系统和方法。 相应的信道估计方法包括以下步骤：接收前导消息并将前同步码消息解扩展成若干符号信号，每个码元信号包含几个离散信号; 为每个符号信号确定峰值符号分配; 在离散信号的起始点建立符号信号的几个数据窗口; 将每个数据窗口的每个离散信号的离散值乘以相应的峰值符号分配并在第一数据帧中累积乘积; 对下一个离散信号重复上述步骤并将其累加在第二数据帧中。 。 。 ，第N个数据帧; 计算数据帧中的累积值并获得具有最大值的数据帧; 从先前确定的数据帧估计信道信号。

公开(公告)号：US20050201497A1

公开(公告)日：2005-09-15

申请号：US10798393

申请日：2004-03-12

申请人： Kuang-Ping Ma ,  Chia-Yung Chiu ,  Wen-Tso Huang ,  Albert Chen

发明人： Kuang-Ping Ma ,  Chia-Yung Chiu ,  Wen-Tso Huang ,  Albert Chen

IPC分类号： H04L27/08

CPC分类号： H03G3/3052

摘要： An automatic gain control and its method are disclosed. An average power computing unit computes the power of a received signal. A power range monitoring unit monitors its change. If the signal power fluctuates around a threshold, the system enters an acquisition mode and the gain is tuned back to a default value. If the signal power is above an upper limit of a tracking range, a gain decreasing unit reduces the gain. If the signal power goes below a lower limit of the tracking range, a gain increasing unit raises the gain. Once the power falls in the tracking range, the system enters a tracking mode to make immediate responses toward the gain of the received signal.

摘要翻译： 公开了一种自动增益控制及其方法。 平均功率计算单元计算接收信号的功率。 功率范围监视单元监视其变化。 如果信号功率在阈值附近波动，则系统进入采集模式，并将增益调回到默认值。 如果信号功率高于跟踪范围的上限，则增益减小单元减小增益。 如果信号功率低于跟踪范围的下限，则增益增加单元提高增益。 一旦功率落在跟踪范围内，系统进入跟踪模式，立即响应于接收信号的增益。

公开(公告)号：US07336743B2

公开(公告)日：2008-02-26

申请号：US10798393

申请日：2004-03-12

申请人： Kuang-Ping Ma ,  Chia-Yung Chiu ,  Wen-Tso Huang ,  Albert Chen

发明人： Kuang-Ping Ma ,  Chia-Yung Chiu ,  Wen-Tso Huang ,  Albert Chen

IPC分类号： H04L27/08

CPC分类号： H03G3/3052

摘要： An automatic gain control and its method are disclosed. An average power computing unit computes the power of a received signal. A power range monitoring unit monitors its change. If the signal power fluctuates around a threshold, the system enters an acquisition mode and the gain is tuned back to a default value. If the signal power is above an upper limit of a tracking range, a gain decreasing unit reduces the gain. If the signal power goes below a lower limit of the tracking range, a gain increasing unit raises the gain. Once the power falls in the tracking range, the system enters a tracking mode to make immediate responses toward the gain of the received signal.

摘要翻译： 公开了一种自动增益控制及其方法。 平均功率计算单元计算接收信号的功率。 功率范围监视单元监视其变化。 如果信号功率在阈值附近波动，则系统进入采集模式，并将增益调回到默认值。 如果信号功率高于跟踪范围的上限，则增益减小单元减小增益。 如果信号功率低于跟踪范围的下限，则增益增加单元提高增益。 一旦功率落在跟踪范围内，系统进入跟踪模式，立即响应于接收信号的增益。

公开(公告)号：US07308002B2

公开(公告)日：2007-12-11

申请号：US10718624

申请日：2003-11-24

申请人： Yen-Chin Liao ,  Kuang-Ping Ma ,  Chia-Yung Chiu ,  Eric Huang ,  Albert Chen

发明人： Yen-Chin Liao ,  Kuang-Ping Ma ,  Chia-Yung Chiu ,  Eric Huang ,  Albert Chen

IPC分类号： H04J3/24

CPC分类号： H04W99/00 ,  H04W24/00 ,  H04W84/12 ,  H04W88/02

摘要： This specification discloses a packet type arbitrator in a wireless local area network (WLAN) and its arbitrating method. The arbitrator contains at least two packet type detectors and a packet type decider. The packet type detector is installed with a false alarm checking module and a timer according to the strength of the packet for delaying the decision from the packet type decider. Through the checking mechanism of the false alarm checking module and the timer, erroneous decision can be avoided when determining the packet type.

摘要翻译： 本说明书公开了无线局域网（WLAN）中的分组类型仲裁器及其仲裁方法。 仲裁器包含至少两个分组类型检测器和分组类型判定器。 分组类型检测器根据分组强度安装了一个假警报检测模块和一个定时器，用于延迟分组类型决定器的决定。 通过错误检测模块和定时器的检查机制，确定分组类型时可以避免错误的决定。

公开(公告)号：US20050111436A1

公开(公告)日：2005-05-26

申请号：US10718624

申请日：2003-11-24

申请人： Yen-Chin Liao ,  Kuang-Ping Ma ,  Chia-Yung Chiu ,  Eric Huang ,  Albert Chen

发明人： Yen-Chin Liao ,  Kuang-Ping Ma ,  Chia-Yung Chiu ,  Eric Huang ,  Albert Chen

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04L12/66

CPC分类号： H04W99/00 ,  H04W24/00 ,  H04W84/12 ,  H04W88/02

摘要： This specification discloses a packet type arbitrator in a wireless local area network (WLAN) and its arbitrating method. The arbitrator contains at least two packet type detectors and a packet type decider. The packet type detector is installed with a false alarm checking module and a timer according to the strength of the packet for delaying the decision from the packet type decider. Through the checking mechanism of the false alarm checking module and the timer, erroneous decision can be avoided when determining the packet type.

摘要翻译： 本说明书公开了无线局域网（WLAN）中的分组类型仲裁器及其仲裁方法。 仲裁器包含至少两个分组类型检测器和分组类型判定器。 分组类型检测器根据分组强度安装了一个假警报检测模块和一个定时器，用于延迟分组类型决定器的决定。 通过错误检测模块和定时器的检查机制，确定分组类型时可以避免错误的决定。

公开(公告)号：US07330522B2

公开(公告)日：2008-02-12

申请号：US10819319

申请日：2004-04-07

申请人： Chen-Yen Huang ,  Kuang-Ping Ma ,  Chun-Chang Lin ,  Albert Chen

发明人： Chen-Yen Huang ,  Kuang-Ping Ma ,  Chun-Chang Lin ,  Albert Chen

IPC分类号： H04L27/00 ,  H04B1/00 ,  G06F17/15 ,  G06F17/10

CPC分类号： H04L27/34

摘要： An apparatus of sequentially decoding CCK codes includes a series of received signal registers used to respectively temporarily save the received signals, a phase selector used to select one numeral from 1, −1, j or −j respectively for CCK code of each chip to multiple with the signal register, a series of adders used to sequentially complete adding operation, a series of sequential operation registers used to save values obtained from the sequential selecting operation of the phase selectors and the sequential adding operation of the adders, and a comparing device used to select a maximal value from those saved in the operation registers. The comparing device includes a comparator and a maximum register. According to the invention, the data processing speeds up while the hardware complexity is reduced.

摘要翻译： 顺序地解码CCK码的装置包括用于分别暂时保存接收信号的一系列接收信号寄存器，一个相位选择器，用于分别从1，-1，j或-j中选择一个数字，用于每个码片的CCK码到多个 使用信号寄存器，用于顺序地完成添加操作的一系列加法器，用于保存从相位选择器的顺序选择操作获得的值和加法器的顺序添加操作的一系列顺序操作寄存器，以及使用的比较器件 从存储在操作寄存器中的值中选择最大值。 比较装置包括比较器和最大寄存器。 根据本发明，数据处理在硬件复杂度降低的同时加快。

公开(公告)号：US20050226351A1

公开(公告)日：2005-10-13

申请号：US10819319

申请日：2004-04-07

申请人： Chen-Yen Huang ,  Kuang-Ping Ma ,  Chun-Chang Lin ,  Albert Chen

发明人： Chen-Yen Huang ,  Kuang-Ping Ma ,  Chun-Chang Lin ,  Albert Chen

IPC分类号： H04L27/06 ,  H04L27/34

CPC分类号： H04L27/34

摘要： An apparatus of sequentially decoding CCK codes includes a series of received signal registers used to respectively temporarily save the received signals, a phase selector used to select one numeral from 1, −1, j or −j respectively for CCK code of each chip to multiple with the signal register, a series of adders used to sequentially complete adding operation, a series of sequential operation registers used to save values obtained from the sequential selecting operation of the phase selectors and the sequential adding operation of the adders, and a comparing device used to select a maximal value from those saved in the operation registers. The comparing device includes a comparator and a maximum register. According to the invention, the data processing speeds up while the hardware complexity is reduced.

摘要翻译： 顺序地解码CCK码的装置包括用于分别暂时保存接收信号的一系列接收信号寄存器，一个相位选择器，用于分别从1，-1，j或-j中选择一个数字，用于每个码片的CCK码到多个 使用信号寄存器，用于顺序地完成添加操作的一系列加法器，用于保存从相位选择器的顺序选择操作获得的值和加法器的顺序添加操作的一系列顺序操作寄存器，以及使用的比较器件 从存储在操作寄存器中的值中选择最大值。 比较装置包括比较器和最大寄存器。 根据本发明，数据处理在硬件复杂度降低的同时加快。

公开(公告)号：US20090116567A1

公开(公告)日：2009-05-07

申请号：US11979687

申请日：2007-11-07

申请人： Albert Chen ,  Kuang-Ping Ma

发明人： Albert Chen ,  Kuang-Ping Ma

IPC分类号： H04L27/28

CPC分类号： H04L25/0228 ,  H04L25/0212 ,  H04L25/022

摘要： The present invention discloses a channel estimation method for Bluetooth signals through a multipath propagation channel, using a SYNC sequence as a preamble sequence. It mainly comprises the steps of: use of SYNC sequence as input to LS-based channel impulse response estimation, precomputation of local frequency domain preamble, precomputation of local inverted frequency domain preamble and shortening of estimated channel impulse response for further equalization purposes. The proposed channel estimation method and apparatus according to the present invention enables use of efficient equalization algorithms, therefore mitigating ISI and very successfully estimates propagation conditions while being very implementation-friendly.

摘要翻译： 本发明公开了一种使用SYNC序列作为前导序列的通过多径传播信道的蓝牙信号的信道估计方法。 它主要包括以下步骤：使用SYNC序列作为基于LS的信道脉冲响应估计的输入，本地频域前导码的预计算，本地反向频域前导码的预计算和用于进一步均衡的缩短估计的信道脉冲响应。 根据本发明的所提出的信道估计方法和装置使得能够使用有效的均衡算法，从而减轻ISI并且非常成功地估计传播条件，同时非常实现友好。

公开(公告)号：US07949327B2

公开(公告)日：2011-05-24

申请号：US11435948

申请日：2006-05-18

申请人： Albert Chen ,  Kuang-Ping Ma ,  Wen-Tso Huang

发明人： Albert Chen ,  Kuang-Ping Ma ,  Wen-Tso Huang

IPC分类号： H04M1/66

CPC分类号： H04W52/281 ,  H04L25/03159 ,  H04L2025/03522 ,  H04L2025/03624 ,  H04W84/18

摘要： The invention of a method and an apparatus for reception of long transmission range Bluetooth signals impaired by multipath are disclosed. The new reception method and apparatus proposed allows to increase the transmission range for data transmission in Bluetooth. The invention proposes the use of a new FDE adapted to SC transmission without a GI or CP. The proposed FDE very successfully mitigates ISI while being very implementation-friendly.

摘要翻译： 公开了一种用于接收受多径损害的长传输范围蓝牙信号的方法和装置的发明。 所提出的新的接收方法和装置允许增加蓝牙中数据传输的传输范围。 本发明提出了在没有GI或CP的情况下适用于SC传输的新的FDE的使用。 提出的FDE非常成功地减轻ISI，同时非常实用。