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1. 发明授权

US07860177B2 Receiver detecting signals based on spectrum characteristic and detecting method thereof 有权
标题翻译：基于频谱特性的接收机检测信号及其检测方法
公开(公告)号：US07860177B2
公开(公告)日：2010-12-28
申请号：US11846521
申请日：2007-08-28
申请人： Tai-Cheng Liu , Hsuan-Yu Liu , Po-Yuen Cheng
发明人： Tai-Cheng Liu , Hsuan-Yu Liu , Po-Yuen Cheng
IPC分类号： H04K1/10 , H04J11/00
CPC分类号： H04L25/022 , H04L25/03828 , H04L27/2647
摘要： A receiver for receiving a target signal complying with a specific communication specification comprising a specific spectrum characteristic includes a detecting module for detecting a packet of an input signal, a transforming unit for transforming the packet from a time domain to a frequency domain to derive a spectrum characteristic of the input signal, and a determining unit for determining whether the input signal is the target signal according to the spectrum characteristic of the input signal. Therefore, the proposed receiver is able to reduce packet miss rate and false alarm rate while robust to a severe channel condition, and achieve fast and accurate signal quality detection.
摘要翻译：用于接收符合包括特定频谱特性的特定通信规范的目标信号的接收机包括用于检测输入信号分组的检测模块，用于将分组从时域变换到频域的变换单元，以导出频谱输入信号的特性;以及确定单元，用于根据输入信号的频谱特性确定输入信号是否为目标信号。因此，所提出的接收机能够在恶劣的信道条件下稳定地降低分组丢失率和误报率，并且实现快速准确的信号质量检测。

2. 发明申请

US20090060006A1 RECEIVER DETECTING SIGNALS BASED ON SPECTRUM CHARACTERISTIC AND DETECTING METHOD THEREOF 有权
标题翻译：基于光谱特征及其检测方法的接收机检测信号
公开(公告)号：US20090060006A1
公开(公告)日：2009-03-05
申请号：US11846521
申请日：2007-08-28
申请人： Tai-Cheng Liu , Hsuan-Yu Liu , Po-Yuen Cheng
发明人： Tai-Cheng Liu , Hsuan-Yu Liu , Po-Yuen Cheng
IPC分类号： H04B1/707
CPC分类号： H04L25/022 , H04L25/03828 , H04L27/2647
摘要： A receiver for receiving a target signal complying with a specific communication specification comprising a specific spectrum characteristic includes a detecting module for detecting a packet of an input signal, a transforming unit for transforming the packet from a time domain to a frequency domain to derive a spectrum characteristic of the input signal, and a determining unit for determining whether the input signal is the target signal according to the spectrum characteristic of the input signal. Therefore, the proposed receiver is able to reduce packet miss rate and false alarm rate while robust to a severe channel condition, and achieve fast and accurate signal quality detection.
摘要翻译：用于接收符合包括特定频谱特性的特定通信规范的目标信号的接收机包括用于检测输入信号分组的检测模块，用于将分组从时域变换到频域的变换单元，以导出频谱输入信号的特性;以及确定单元，用于根据输入信号的频谱特性确定输入信号是否为目标信号。因此，所提出的接收机能够在恶劣的信道条件下稳定地降低分组丢失率和误报率，并且实现快速准确的信号质量检测。

3. 发明申请

US20100202570A1 Method for estimating phase error in MIMO OFDM communications system 审中-公开
标题翻译： MIMO OFDM通信系统估计相位误差的方法
公开(公告)号：US20100202570A1
公开(公告)日：2010-08-12
申请号：US12764990
申请日：2010-04-22
申请人： Shang-Ho Tsai , Hsiao-Lan Chiang , Hsuan-Yu Liu , Po-Yuen Cheng
发明人： Shang-Ho Tsai , Hsiao-Lan Chiang , Hsuan-Yu Liu , Po-Yuen Cheng
IPC分类号： H04L27/06
CPC分类号： H04L27/2657 , H04B7/0413 , H04L1/0606 , H04L1/0631 , H04L1/20 , H04L5/0023 , H04L25/0204 , H04L25/03159 , H04L27/2675 , H04L27/2695 , H04L2025/03414 , H04L2027/0067 , H04L2027/0087
摘要： A method for estimating a phase error existing in a receiver of a MIMO OFDM communications system is disclosed. The method includes executing Hermitian transpose on channel coefficient matrix of the MIMO OFDM communications system for generating Hermitian-transposed channel coefficient matrix, multiplying received signal matrix of the receiver with the Hermitian-transposed channel coefficient matrix for generating converted signals, summing products of the converted signals and complex conjugates of pilot signals corresponding to the converted signals for generating a sum result, and generating the phase error according to the sum result, the converted signals, and the complex conjugates of the pilot signals. The pilot signals are extracted from the received signal matrix.
摘要翻译：公开了一种用于估计存在于MIMO OFDM通信系统的接收机中的相位误差的方法。该方法包括对MIMO OFDM通信系统的信道系数矩阵执行Hermitian转置，以产生Hermitian转置信道系数矩阵，将接收机的接收信号矩阵与Hermitian转置信道系数矩阵相乘以产生转换信号，将转换后的乘积求和信号和与转换信号相对应的导频信号的复共轭，用于产生和结果，并根据求和结果，转换信号和导频信号的复共轭产生相位误差。从接收信号矩阵中提取导频信号。

4. 发明申请

US20100166093A1 METHOD FOR ESTIMATING PHASE ERROR IN MIMO OFDM COMMUNICATIONS SYSTEM 失效
标题翻译： MIMO OFDM通信系统中估计相位误差的方法
公开(公告)号：US20100166093A1
公开(公告)日：2010-07-01
申请号：US12346886
申请日：2008-12-31
申请人： Shang-Ho Tsai , Hsiao-Lan Chiang , Hsuan-Yu Liu , Po-Yuen Cheng
发明人： Shang-Ho Tsai , Hsiao-Lan Chiang , Hsuan-Yu Liu , Po-Yuen Cheng
IPC分类号： H04L1/02
CPC分类号： H04L27/2657 , H04B7/0413 , H04L1/0606 , H04L1/0631 , H04L1/20 , H04L5/0023 , H04L25/0204 , H04L25/03159 , H04L27/2675 , H04L27/2695 , H04L2025/03414 , H04L2027/0067 , H04L2027/0087
摘要： A method for estimating a phase error existing in a receiver of a MIMO OFDM communications system is disclosed. The method includes executing Hermitian transpose on channel coefficient matrix of the MIMO OFDM communications system for generating Hermitian-transposed channel coefficient matrix, multiplying received signal matrix of the receiver with the Hermitian-transposed channel coefficient matrix for generating converted signals, summing products of the converted signals and complex conjugates of pilot signals corresponding to the converted signals for generating a sum result, and generating the phase error according to the sum result, the converted signals, and the complex conjugates of the pilot signals. The pilot signals are extracted from the received signal matrix.
摘要翻译：公开了一种用于估计存在于MIMO OFDM通信系统的接收机中的相位误差的方法。该方法包括对MIMO OFDM通信系统的信道系数矩阵执行Hermitian转置，以产生Hermitian转置信道系数矩阵，将接收机的接收信号矩阵与Hermitian转置信道系数矩阵相乘以产生转换信号，将转换后的乘积求和信号和与转换信号相对应的导频信号的复共轭，用于产生和结果，并根据求和结果，转换信号和导频信号的复共轭产生相位误差。从接收信号矩阵中提取导频信号。

5. 发明授权

US07733975B1 Method for estimating phase error in MIMO OFDM communications system 失效
公开(公告)号：US07733975B1
公开(公告)日：2010-06-08
申请号：US12346886
申请日：2008-12-31
申请人： Shang-Ho Tsai , Hsiao-Lan Chiang , Hsuan-Yu Liu , Po-Yuen Cheng
发明人： Shang-Ho Tsai , Hsiao-Lan Chiang , Hsuan-Yu Liu , Po-Yuen Cheng
IPC分类号： H04B7/08 , H04L27/28
CPC分类号： H04L27/2657 , H04B7/0413 , H04L1/0606 , H04L1/0631 , H04L1/20 , H04L5/0023 , H04L25/0204 , H04L25/03159 , H04L27/2675 , H04L27/2695 , H04L2025/03414 , H04L2027/0067 , H04L2027/0087
摘要： A method for estimating a phase error existing in a receiver of a MIMO OFDM communications system is disclosed. The method includes executing Hermitian transpose on channel coefficient matrix of the MIMO OFDM communications system for generating Hermitian-transposed channel coefficient matrix, multiplying received signal matrix of the receiver with the Hermitian-transposed channel coefficient matrix for generating converted signals, summing products of the converted signals and complex conjugates of pilot signals corresponding to the converted signals for generating a sum result, and generating the phase error according to the sum result, the converted signals, and the complex conjugates of the pilot signals. The pilot signals are extracted from the received signal matrix.

6. 发明申请

US20090262688A1 RATE ADAPTATION METHODS FOR WIRELESS COMMUNICATION APPARATUS, AND WIRELESS COMMUNICATION APPARATUS FOR PERFORMING WIRELESS COMMUNICATION WITH RATE ADAPTATION 审中-公开
标题翻译：无线通信装置的速率调整方法和无线通信装置，用于实现无线通信与速率适应
公开(公告)号：US20090262688A1
公开(公告)日：2009-10-22
申请号：US12107078
申请日：2008-04-22
申请人： Shang-Ho Tsai , Hsuan-Yu Liu , Hung-Wen Yang , Tai-Cheng Liu , Yuh-Ren Jauh
发明人： Shang-Ho Tsai , Hsuan-Yu Liu , Hung-Wen Yang , Tai-Cheng Liu , Yuh-Ren Jauh
IPC分类号： H04Q7/00
CPC分类号： H04W72/082 , H04L1/0002
摘要： A rate adaptation method for a wireless communication apparatus includes: determining whether to use a first mode or a second mode according to at least one estimation value, where the first mode and the second mode correspond to different values of an overall data rate of the wireless communication apparatus. A wireless communication apparatus for performing wireless communication with rate adaptation includes: a processing circuit; and a wireless receiver and a wireless transmitter, both coupled to the processing circuit. The processing circuit determines at least one estimation value regarding communication quality of the wireless communication apparatus, and further determines whether to use a first mode or a second mode according to the estimation value, where the first mode and the second mode correspond to different values of an overall data rate of the wireless communication apparatus.
摘要翻译：一种用于无线通信装置的速率适配方法包括：根据至少一个估计值确定是否使用第一模式或第二模式，其中第一模式和第二模式对应于无线的总体数据速率的不同值通信设备。一种用于执行速率适配的无线通信的无线通信装置包括：处理电路; 以及耦合到处理电路的无线接收器和无线发射器。处理电路确定关于无线通信装置的通信质量的至少一个估计值，并且还根据估计值确定是否使用第一模式或第二模式，其中第一模式和第二模式对应于无线通信装置的总体数据速率。

7. 发明授权

US08891389B2 Methods and apparatuses for detecting transmission collision and/or alleviating transmission collision 有权
标题翻译：用于检测传输碰撞和/或减轻传输碰撞的方法和装置
公开(公告)号：US08891389B2
公开(公告)日：2014-11-18
申请号：US13275335
申请日：2011-10-18
申请人： Hsuan-Yu Liu , Ho-Chi Huang
发明人： Hsuan-Yu Liu , Ho-Chi Huang
IPC分类号： H04L12/26 , H04W74/08 , H04L1/18
CPC分类号： H04W74/0841 , H04L1/18
摘要： A method for detecting a transmission collision between a first wireless communication terminal and a second wireless communication terminal includes the following steps: when one retry packet transmitted from the first wireless communication terminal is received by the second wireless communication terminal, checking if at least one transmission collision condition is met and accordingly generating a checking result; deriving statistic data from a plurality of checking results generated in response to a plurality of retry packets transmitted from the first wireless communication terminal; and detecting the transmission collision between the first wireless communication terminal and the second wireless communication terminal according to the statistic data.
摘要翻译：一种用于检测第一无线通信终端和第二无线通信终端之间的传输冲突的方法包括以下步骤：当由第二无线通信终端接收到从第一无线通信终端发送的一个重试分组时，检查至少一个传输碰撞条件得到满足，从而产生检查结果; 从响应于从所述第一无线通信终端发送的多个重试分组而生成的多个检查结果中导出统计数据; 以及根据统计数据检测第一无线通信终端与第二无线通信终端之间的传输冲突。

8. 发明申请

US20130094375A1 METHODS AND APPARATUSES FOR DETECTING TRANSMISSION COLLISION AND/OR ALLEVIATING TRANSMISSION COLLISION 有权
标题翻译：用于检测传输冲突和/或传播传输冲突的方法和装置
公开(公告)号：US20130094375A1
公开(公告)日：2013-04-18
申请号：US13275335
申请日：2011-10-18
申请人： Hsuan-Yu Liu , Ho-Chi Huang
发明人： Hsuan-Yu Liu , Ho-Chi Huang
IPC分类号： H04W24/00 , H04L12/26
CPC分类号： H04W74/0841 , H04L1/18
摘要： A method for detecting a transmission collision between a first wireless communication terminal and a second wireless communication terminal includes the following steps: when one retry packet transmitted from the first wireless communication terminal is received by the second wireless communication terminal, checking if at least one transmission collision condition is met and accordingly generating a checking result; deriving statistic data from a plurality of checking results generated in response to a plurality of retry packets transmitted from the first wireless communication terminal; and detecting the transmission collision between the first wireless communication terminal and the second wireless communication terminal according to the statistic data.
摘要翻译：一种用于检测第一无线通信终端和第二无线通信终端之间的传输冲突的方法包括以下步骤：当由第二无线通信终端接收到从第一无线通信终端发送的一个重试分组时，检查至少一个传输碰撞条件得到满足，从而产生检查结果; 从响应于从所述第一无线通信终端发送的多个重试分组而生成的多个检查结果中导出统计数据; 以及根据统计数据检测第一无线通信终端与第二无线通信终端之间的传输冲突。

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