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公开(公告)号：US08570887B2
公开(公告)日：2013-10-29
申请号：US12944031
申请日：2010-11-11
申请人： Thomas B. Cho , Li Lin , Mao Yu , Atul Salhotra
发明人： Thomas B. Cho , Li Lin , Mao Yu , Atul Salhotra
IPC分类号： G01R31/08
CPC分类号： H04L27/0002 , H03F1/0272 , H03G3/3068
摘要： Apparatus having corresponding methods and non-transitory computer-readable media comprise an amplifier configured to amplify signals according to a bias current, wherein the signals represent packets of data; a packet module configured to recover the packets of data from the signals amplified by the amplifier; and a control module configured to control the bias current according to one or more characteristics of the packets of data.
摘要翻译： 具有相应方法和非瞬时计算机可读介质的装置包括放大器，其经配置以根据偏置电流放大信号，其中所述信号表示数据分组; 分组模块，被配置为从放大器放大的信号中恢复数据分组; 以及控制模块，被配置为根据所述数据分组的一个或多个特性来控制所述偏置电流。
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公开(公告)号：US08031810B1
公开(公告)日：2011-10-04
申请号：US12945035
申请日：2010-11-12
申请人： Yungping Hsu , Mao Yu
发明人： Yungping Hsu , Mao Yu
CPC分类号： H03M1/1225 , H04L27/38
摘要： An architecture for use in wireless receiver applications, particularly for ADC conversion of received in-phase I and quadrature Q signals. A single ADC is shared to convert both signals, and the ADC input is alternately switched between the i and q signals. In an embodiment, the ADC is clocked at an increased sample rate, and the digital output signals are aligned to compensate for the phase difference resulting from the implementation of the single ADC.
摘要翻译： 一种用于无线接收机应用的架构，特别是用于接收同相I和正交Q信号的ADC转换。 共享一个ADC以转换两个信号，并且ADC输入在i和q信号之间交替切换。 在一个实施例中，ADC以提高的采样率被计时，并且数字输出信号被对准以补偿由单个ADC的实现引起的相位差。
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公开(公告)号：US09154197B2
公开(公告)日：2015-10-06
申请号：US12910608
申请日：2010-10-22
申请人： Hongyuan Zhang , Raja Banerjea , Yong Liu , Mao Yu
发明人： Hongyuan Zhang , Raja Banerjea , Yong Liu , Mao Yu
摘要： In a method for generating a preamble of a data unit for transmission via a communication channel, an indication of a first number of spatial or space-time streams is included in a first field of the preamble. The first number of spatial or space-time streams corresponds to transmission of the data unit to a first receiver. One or more training sequences are included in a second field of the preamble. The preamble is formatted such that the first field of the preamble will be transmitted prior to the second field of the preamble being transmitted.
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公开(公告)号：US20100260159A1
公开(公告)日：2010-10-14
申请号：US12758603
申请日：2010-04-12
申请人： Hongyuan Zhang , Hui-Ling Lou , Rohit U. Nabar , Sudhir Srinivasa , Mao Yu , Raja Banerjea
发明人： Hongyuan Zhang , Hui-Ling Lou , Rohit U. Nabar , Sudhir Srinivasa , Mao Yu , Raja Banerjea
IPC分类号： H04W4/00
CPC分类号： H04L1/0079 , H04L1/0072 , H04L1/009 , H04L27/2613 , H04L69/18 , H04W28/06 , H04W84/12 , H04W99/00
摘要： In a method for generating a data unit for transmission via a communication channel, wherein the data unit conforms to a first communication protocol, a preamble of the data unit is generated. The preamble includes a first field having information that indicates a duration of the data unit, the first field being formatted such that the first field is decodable by a receiver device that conforms to a second communication protocol but does not conform to the first communication protocol to determine the duration of the data unit based on the first field. Additionally, the preamble is formatted such that a portion of the preamble is decodable by a receiver device that conforms to a third communication protocol but does not conform to the first communication protocol. Also, the preamble is formatted such that a receiver device that conforms to the first communication protocol can determine that the data unit conforms to the first communication protocol. A data portion of the data unit that conforms to the first communication protocol and does not conform to either (i) the second communication protocol or (ii) the third communication protocol is generated.
摘要翻译： 在通过通信信道生成用于发送的数据单元的方法中，其中数据单元符合第一通信协议，生成数据单元的前同步码。 前导码包括具有指示数据单元的持续时间的信息的第一字段，第一字段被格式化，使得第一字段可由符合第二通信协议但不符合第一通信协议的接收机设备解码， 基于第一个字段确定数据单元的持续时间。 另外，前导码被格式化，使得前导码的一部分可以由符合第三通信协议但不符合第一通信协议的接收机设备解码。 此外，前导码格式化使得符合第一通信协议的接收机设备可以确定数据单元符合第一通信协议。 产生符合第一通信协议并且不符合（i）第二通信协议或（ii）第三通信协议的数据单元的数据部分。
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公开(公告)号：US07388931B1
公开(公告)日：2008-06-17
申请号：US10170306
申请日：2002-06-12
申请人： Yungping Hsu , Mao Yu
发明人： Yungping Hsu , Mao Yu
CPC分类号： H03M1/1225 , H04L27/38
摘要： A simplified architecture is disclosed for ADC conversion of received in-phase I and quadrature Q signals. Circuit area is substantially reduced by sharing a single ADC to convert both signals, switching the ADC input alternately between the i and q signals. In an embodiment, the ADC is clocked at an increased sample rate, and the digital output signals are aligned to compensate for the phase difference resulting from the implementation of a single ADC. Aligning includes delaying one of the digital signals, and interpolating the other one of the digital signals in a low pass filter so as to compensate for the phase difference introduced by the sampling during the first and second time intervals. The first and second time intervals are equal to a predetermined ADC sample period corresponding to a sample clock cycle. Delaying the first digital signal includes a delay of 1/2 clock cycle.
摘要翻译： 公开了用于接收的同相I和正交Q信号的ADC转换的简化架构。 通过共享单个ADC来转换两个信号，交替地在i和q信号之间切换ADC输入，从而大大减少了电路面积。 在一个实施例中，ADC以提高的采样率被计时，并且数字输出信号被对准以补偿由单个ADC的实现引起的相位差。 对准包括延迟数字信号中的一个，并且在低通滤波器中内插另一个数字信号，以补偿在第一和第二时间间隔期间由采样引入的相位差。 第一和第二时间间隔等于对应于采样时钟周期的预定ADC采样周期。 延迟第一个数字信号包括1/2时钟周期的延迟。
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公开(公告)号：US09480018B2
公开(公告)日：2016-10-25
申请号：US12938260
申请日：2010-11-02
申请人： Yong Liu , Hongyuan Zhang , Raja Banerjea , Mao Yu
发明人： Yong Liu , Hongyuan Zhang , Raja Banerjea , Mao Yu
CPC分类号： H04W52/58 , H04W52/0219 , H04W52/0222 , H04W52/0229 , H04W74/0808 , H04W74/0816 , H04W84/12 , H04W88/08 , Y02D70/1262 , Y02D70/142
摘要： A method in a communication device for processing a received data unit includes determining whether the communication device is an intended receiver based on the received data unit, determining whether the received data unit includes an exclusive use indication, where the exclusive use indication indicates that a plurality of data units are transmitted only to the at least one intended receiver during a time period, where each of the plurality of data units has at least a respective physical layer (PHY) preamble, and determining a time interval during which the communication device need not listen for incoming data units using (i) a result of determining whether the received data unit includes an exclusive use indication and (ii) a result of determining whether the communication device is an intended receiver.
摘要翻译： 用于处理接收数据单元的通信设备中的方法包括：基于接收到的数据单元确定通信设备是否是预期接收机，确定接收到的数据单元是否包括专用指示，其中专用指示指示多个 在多个数据单元中的每个数据单元至少具有相应的物理层（PHY）前导码的时间周期期间仅将数据单元仅发送到至少一个预期的接收机，并且确定通信设备不需要的时间间隔 使用（i）确定接收到的数据单元是否包括专用指示的结果来监听输入数据单元，以及（ii）确定通信设备是否是预期接收机的结果。
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公开(公告)号：US08724546B2
公开(公告)日：2014-05-13
申请号：US12910628
申请日：2010-10-22
申请人： Hongyuan Zhang , Raja Banerjea , Yong Liu , Mao Yu
发明人： Hongyuan Zhang , Raja Banerjea , Yong Liu , Mao Yu
CPC分类号： H04B7/0452 , H04B7/0413 , H04B7/0669 , H04L5/0023 , H04L5/0048 , H04L5/005 , H04L5/0053 , H04L25/0226 , H04W84/12
摘要： In a method for generating a preamble of a data unit for transmission via a multiple input, multiple output (MIMO) communication channel, a first field of the preamble is generated. The first field provides a plurality of indicators to a plurality of receivers. Each one of the plurality of indicators indicates a set of a plurality of training sequences that corresponds to transmission of the data unit to a corresponding one of the plurality of receivers. The plurality of training sequences is included in a second field of the preamble. The preamble is formatted such that the first field of the preamble will be transmitted prior to the second field of the preamble being transmitted.
摘要翻译： 在通过多输入多输出（MIMO）通信信道生成用于传输的数据单元的前同步码的方法中，生成前导码的第一字段。 第一场向多个接收机提供多个指示符。 多个指示符中的每个指示符指示对应于数据单元向多个接收器中的相应一个的传输的多个训练序列的集合。 多个训练序列被包括在前导码的第二个字段中。 格式化前置码使得前导码的第一字段将在正在发送的前导码的第二字段之前被发送。
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公开(公告)号：US08634317B1
公开(公告)日：2014-01-21
申请号：US13103632
申请日：2011-05-09
申请人： Mao Yu
发明人： Mao Yu
CPC分类号： H04W24/10 , H04L1/0072 , H04L1/08 , H04L47/10 , H04W74/0808
摘要： In a method for detecting a duplicate packet in a signal, the signal is received using a receiver. Carrier sense (CS) operations are performed on the received signal in at least each of two frequency bands. Clear channel assessment (CCA) operations are performed on the received signal in the at least each of two frequency bands. A determination whether the received signal corresponds to a packet duplicated in the at least two frequency bands is made based on the CS operations and the CCA operations.
摘要翻译： 在用于检测信号中的重复分组的方法中，使用接收机接收信号。 在两个频带中的至少每个频带中对接收到的信号执行载波侦听（CS）操作。 在两个频带中的至少每个频带中对接收到的信号执行清除信道评估（CCA）操作。 基于CS操作和CCA操作来确定接收到的信号是否对应于在至少两个频带中复制的分组。
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公开(公告)号：US20110116399A1
公开(公告)日：2011-05-19
申请号：US12944031
申请日：2010-11-11
申请人： Thomas B. Cho , Li Lin , Mao Yu , Atul Salhotra
发明人： Thomas B. Cho , Li Lin , Mao Yu , Atul Salhotra
CPC分类号： H04L27/0002 , H03F1/0272 , H03G3/3068
摘要： Apparatus having corresponding methods and non-transitory computer-readable media comprise an amplifier configured to amplify signals according to a bias current, wherein the signals represent packets of data; a packet module configured to recover the packets of data from the signals amplified by the amplifier; and a control module configured to control the bias current according to one or more characteristics of the packets of data.
摘要翻译： 具有相应方法和非瞬时计算机可读介质的装置包括放大器，其经配置以根据偏置电流放大信号，其中所述信号表示数据分组; 分组模块，被配置为从放大器放大的信号中恢复数据分组; 以及控制模块，被配置为根据所述数据分组的一个或多个特性来控制所述偏置电流。
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