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1. 发明申请

US20130065533A1 USING FREQUENCY BANDS CHARACTERIZED BY TYPE OF UNWANTED INTERFERENCE FOR COEXISTENCE AMONG MULTIPLE WIRELESS COMMUNICATION TECHNOLOGIES 有权
标题翻译：使用通过多种无线通信技术的不间断干扰类型表征的频率表
公开(公告)号：US20130065533A1
公开(公告)日：2013-03-14
申请号：US13611174
申请日：2012-09-12
申请人： Ying Cai , Jihwan P. Choi , Hui-Ling Lou , Vladan Petrovic , Chuxiang Li
发明人： Ying Cai , Jihwan P. Choi , Hui-Ling Lou , Vladan Petrovic , Chuxiang Li
IPC分类号： H04B15/00 , H04B7/24
CPC分类号： H04B1/406 , H04B1/109 , H04W72/082 , H04W88/06
摘要： Apparatus having corresponding methods and computer-readable media comprise: a first transceiver comprising a controller configured to select one of a plurality of frequency regions, and a transmitter configured to transmit, according to a first protocol, first wireless signals in the one of the plurality of the frequency regions selected by the controller, wherein each frequency region is characterized by a respective type of unwanted interference generated responsive to the transmitter transmitting the first wireless signals in the respective frequency region; an arbiter configured to select one or more frequency channels based on the one of the plurality of the frequency regions selected by the controller; and a second transceiver configured to transceive, according to a second protocol, second wireless signals only in the one or more frequency channels selected by the arbiter.
摘要翻译：具有相应方法和计算机可读介质的装置包括：第一收发器，包括被配置为选择多个频率区域中的一个的控制器，以及被配置为根据第一协议传输多个频率区域中的一个的第一无线信号的发射机其中每个频率区域的特征在于响应于在相应频率区域中发送第一无线信号的发射机而产生的相应类型的不需要的干扰; 配置为基于由控制器选择的多个频率区域中的一个选择一个或多个频率信道的仲裁器; 以及第二收发机，其被配置为仅在所述仲裁器选择的所述一个或多个频率信道中收发根据第二协议的第二无线信号。

2. 发明申请

US20070294063A1 Automatic-Repeat-Request Throughput Over Parallel Channels 审中-公开
标题翻译：并行通道自动重发请求吞吐量
公开(公告)号：US20070294063A1
公开(公告)日：2007-12-20
申请号：US11692978
申请日：2007-03-29
申请人： Chuxiang Li , Xiaodong Wang , Mohammad Madihian
发明人： Chuxiang Li , Xiaodong Wang , Mohammad Madihian
IPC分类号： G06F17/10 , H04L25/60
CPC分类号： H04L1/1822 , H04L5/0023
摘要： Methods and apparatus for using automatic-repeat-request (ARQ) protocols in multiple parallel channel systems are provided. In parallel channel systems (e.g., MIMO and/or OFDM systems), various ARQ protocols are employed to increase system throughput. Methods of analysis of the throughput of these protocols are also provided to determine an appropriate protocol. These methods include determining the parameters of a packet-layer model from the physical-layer model parameters and the transceiver parameters using Markov modeling techniques. That is, the rate of a state of the ARQ system is determined and the throughput of the ARQ system is then determined based on the rate using a physical-layer Markov model.
摘要翻译：提供了在多个并行通道系统中使用自动重复请求（ARQ）协议的方法和装置。在并行信道系统（例如，MIMO和/或OFDM系统）中，采用各种ARQ协议来增加系统吞吐量。还提供了分析这些协议的吞吐量的方法以确定适当的协议。这些方法包括使用马尔可夫建模技术从物理层模型参数和收发器参数确定分组层模型的参数。也就是说，确定ARQ系统状态的速率，然后基于使用物理层马尔可夫模型的速率来确定ARQ系统的吞吐量。

3. 发明授权

US08879999B2 Using frequency bands characterized by type of unwanted interference for coexistence among multiple wireless communication technologies 有权
标题翻译：使用多种无线通信技术共存的特征为不想要的干扰类型的频带
公开(公告)号：US08879999B2
公开(公告)日：2014-11-04
申请号：US13611174
申请日：2012-09-12
申请人： Ying Cai , Jihwan P. Choi , Hui-Ling Lou , Vladan Petrovic , Chuxiang Li
发明人： Ying Cai , Jihwan P. Choi , Hui-Ling Lou , Vladan Petrovic , Chuxiang Li
IPC分类号： H04B1/00 , H04W72/08 , H04B1/40 , H04W88/06 , H04B1/10
CPC分类号： H04B1/406 , H04B1/109 , H04W72/082 , H04W88/06
摘要： Apparatus having corresponding methods and computer-readable media comprise: a first transceiver comprising a controller configured to select one of a plurality of frequency regions, and a transmitter configured to transmit, according to a first protocol, first wireless signals in the one of the plurality of the frequency regions selected by the controller, wherein each frequency region is characterized by a respective type of unwanted interference generated responsive to the transmitter transmitting the first wireless signals in the respective frequency region; an arbiter configured to select one or more frequency channels based on the one of the plurality of the frequency regions selected by the controller; and a second transceiver configured to transceive, according to a second protocol, second wireless signals only in the one or more frequency channels selected by the arbiter.
摘要翻译：具有相应方法和计算机可读介质的装置包括：第一收发器，包括被配置为选择多个频率区域中的一个的控制器，以及被配置为根据第一协议传输多个频率区域中的一个的第一无线信号的发射机其中每个频率区域的特征在于响应于在相应频率区域中发送第一无线信号的发射机而产生的相应类型的不需要的干扰; 配置为基于由控制器选择的多个频率区域中的一个选择一个或多个频率信道的仲裁器; 以及第二收发机，其被配置为仅在所述仲裁器选择的所述一个或多个频率信道中收发根据第二协议的第二无线信号。

4. 发明授权

US07743315B2 System and method for low-density parity check (LDPC) code design 失效
标题翻译：用于低密度奇偶校验（LDPC）码设计的系统和方法
公开(公告)号：US07743315B2
公开(公告)日：2010-06-22
申请号：US11533978
申请日：2006-09-21
申请人： Chuxiang Li , Guosen Yue , Mohammad A. Khojastepour , Xiaodong Wang , Mohammad Madihian
发明人： Chuxiang Li , Guosen Yue , Mohammad A. Khojastepour , Xiaodong Wang , Mohammad Madihian
IPC分类号： H03M13/00
CPC分类号： H03M13/1105 , H03M13/033 , H03M13/6393
摘要： Disclosed is a density evolution algorithm based on a refined definition of node and edge densities for different parts of the code. In particular, density functions ƒV(1)(i) and ƒV(2)(i) of the output edges of the variable nodes with degree i within different codeword regions w1 and we, respectively, are defined and then calculated. Further, density functions ƒC(1)(j) and ƒC(2)(j) of the output edges for check nodes with degree j within codeword regions w1 and we, respectively, are defined and then calculated. Mixture density functions of output check edges connecting variable nodes in the first codeword region and the second codeword region are then calculated to determine an LDPC code design.
摘要翻译：公开了基于代码不同部分的节点和边缘密度的精确定义的密度演化算法。特别地，分别定义然后计算在不同码字区域w1和we1内分别具有度数i的可变节点的输出边缘的密度函数ƒV（1）（i）和ƒV（2）（i）。此外，分别定义并计算出码字区域w1和we分别具有度j的校验节点的输出边缘的密度函数ƒC（1）（j）和ƒC（2）（j）。然后计算连接第一码字区域和第二码字区域中的可变节点的输出校验边缘的混合密度函数，以确定LDPC码设计。

5. 发明授权

US08804691B1 Phase based preamble detection 有权
标题翻译：基于相位的前导码检测
公开(公告)号：US08804691B1
公开(公告)日：2014-08-12
申请号：US12540758
申请日：2009-08-13
申请人： Qing Zhao , Chuxiang Li , Leilei Song , Jungwon Lee
发明人： Qing Zhao , Chuxiang Li , Leilei Song , Jungwon Lee
IPC分类号： H04L27/26 , H04W56/00 , H04W88/02
CPC分类号： H04L27/2659 , H04L27/2613 , H04L27/2672 , H04L27/2675 , H04L27/2684 , H04W56/00 , H04W88/02
摘要： Devices, methods, and other embodiments associated with phase based preamble detection are described. In one embodiment, an apparatus includes a wireless transceiver, an evaluation logic, and a configuration logic. The wireless transceiver receives a wireless signal from a wireless device. The wireless signal includes a preamble sequence. The evaluation logic evaluates the preamble sequence by comparing phases of the preamble sequence to phases of predefined preamble sequences to identify a matching preamble sequence. The comparison is done without using amplitude information. The configuration logic configures the wireless transceiver to synchronize wireless communications with the wireless device based, at least in part, on the matching preamble sequence.
摘要翻译：描述了与基于相位的前导码检测相关联的设备，方法和其他实施例。在一个实施例中，一种装置包括无线收发器，评估逻辑和配置逻辑。无线收发器从无线设备接收无线信号。无线信号包括前序序列。评估逻辑通过将前导序列的相位与预定义的前导码序列的相位进行比较来评估前导序列，以识别匹配的前导码序列。比较不使用振幅信息。配置逻辑配置无线收发器以至少部分地基于匹配的前导码序列来与无线设备同步无线通信。

6. 发明授权

US08345533B1 Frame synchronization techniques 有权
标题翻译：帧同步技术
公开(公告)号：US08345533B1
公开(公告)日：2013-01-01
申请号：US12540753
申请日：2009-08-13
申请人： Qing Zhao , Leilei Song , Chuxiang Li
发明人： Qing Zhao , Leilei Song , Chuxiang Li
IPC分类号： H04J11/00
CPC分类号： H04W56/001 , H04L27/2613 , H04L27/2656
摘要： Frame synchronization techniques are described. In an implementation, a method implemented by a device includes using an objective function to form a list of values for a plurality of time trials, the time trials taken from a scan of a wireless signal having a plurality of channels. A single one of the values is selected for each of the plurality of channels to detect a preamble of a frame in the wireless signal. If the preamble is not detected as a result of the selecting, at least one additional value is chosen from the list for a respective channel to detect the preamble of the frame in the wireless signal.
摘要翻译：描述帧同步技术。在实现中，由设备实现的方法包括使用目标函数来形成用于多个时间试验的值的列表，从具有多个信道的无线信号的扫描获取的时间试验。为多个信道中的每一个选择值中的单个值以检测无线信号中的帧的前导码。如果作为选择的结果没有检测到前同步码，则从列表中选择至少一个附加值以用于相应的信道以检测无线信号中的帧的前导码。

7. 发明申请

US20070113146A1 System and Method for Low-Density Parity Check (LDPC) Code Design 失效
标题翻译：用于低密度奇偶校验（LDPC）码设计的系统和方法
公开(公告)号：US20070113146A1
公开(公告)日：2007-05-17
申请号：US11533978
申请日：2006-09-21
申请人： Chuxiang Li , Guosen Yue , Mohammad Khojastepour , Xiadong Wang , Mohammad Madihian
发明人： Chuxiang Li , Guosen Yue , Mohammad Khojastepour , Xiadong Wang , Mohammad Madihian
IPC分类号： H03M13/00
CPC分类号： H03M13/1105 , H03M13/033 , H03M13/6393
摘要： Disclosed is a density evolution algorithm based on a refined definition of node and edge densities for different parts of the code. In particular, density functions ƒV(1)(i) and ƒV(2)(i) of the output edges of the variable nodes with degree i within different codeword regions w1 and we, respectively, are defined and then calculated. Further, density functions ƒC(1)(j) and ƒC(2)(j) of the output edges for check nodes with degree j within codeword regions w1 and we, respectively, are defined and then calculated. Mixture density functions of output check edges connecting variable nodes in the first codeword region and the second codeword region are then calculated to determine an LDPC code design.
摘要翻译：公开了基于代码不同部分的节点和边缘密度的精确定义的密度演化算法。特别地，（i）和（ii）（i）的浓度函数f（i）分别在不同码字区域w 1和w e e中的等级i的可变节点的输出边缘被分别定义然后被计算。此外，密度函数f（1）（j）和（C）的密度函数分别定义并且然后计算在码字区域w 1和w e e中的具有度j的校验节点的输出边缘。然后计算连接第一码字区域和第二码字区域中的可变节点的输出校验边缘的混合密度函数，以确定LDPC码设计。

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