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1. 发明申请

US20070086532A1 Device for transmitting and receiving 有权
标题翻译：发送和接收设备
公开(公告)号：US20070086532A1
公开(公告)日：2007-04-19
申请号：US11583009
申请日：2006-10-19
申请人： Tilo Ferchland , Menno Mennenga , Frank Poegel , Attila Roemer
发明人： Tilo Ferchland , Menno Mennenga , Frank Poegel , Attila Roemer
IPC分类号： H04L27/00
CPC分类号： H04L1/1887 , H04L1/1867 , H04W52/0229 , H04W88/02 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/22
摘要： A device for transmitting and receiving is disclosed that includes: a) an antenna, b) a transmitting/receiving unit for transmitting and receiving data according to a communications standard, which has a transmitting unit, connected to the antenna, for transmitting first data frames to a second transmitting/receiving device and a receiving unit, connected to the antenna, for receiving second data frames from the second transmitting/receiving device, and c) a control unit, connected to the transmitting/receiving unit for controlling the transmitting/receiving unit, whereby the control unit is designed (c1) to instruct the transmitting/receiving unit to transmit a first data frame and (c2) to receive the second data frame from the transmitting/receiving unit. According to the invention, the transmitting/receiving unit has a controller, which is connected to the receiving unit and the control unit and is designed d) to evaluate a second data frame, received by the receiving unit within a predefined time interval after the transmission of the first data frame, and to determine whether the second data frame contains an acknowledgment message for the successful receipt of the first data frame by the second transmitting/receiving device, and e) not to relay the second data frame to the control unit, if it is determined that it contains the acknowledgment message.
摘要翻译：公开了一种用于发送和接收的设备，包括：a）天线，b）发送/接收单元，用于根据通信标准发送和接收数据，该通信标准具有连接到天线的发送单元，用于发送第一数据帧连接到天线的第二发送/接收设备和接收单元，用于从第二发送/接收设备接收第二数据帧，以及c）控制单元，连接到发送/接收单元，用于控制发送/接收单元，由此控制单元被设计为（c 1）以指示发送/接收单元发送第一数据帧，（c 2）从发送/接收单元接收第二数据帧。根据本发明，发送/接收单元具有控制器，其连接到接收单元和控制单元，并且被设计为d）在传输之后的预定时间间隔内评估由接收单元接收的第二数据帧并且确定第二数据帧是否包含用于由第二发送/接收装置成功接收第一数据帧的确认消息，以及e）不将第二数据帧中继到控制单元，如果确定它包含确认消息。

2. 发明授权

US07596365B2 Device for transmitting and receiving 有权
标题翻译：发送和接收设备
公开(公告)号：US07596365B2
公开(公告)日：2009-09-29
申请号：US11583009
申请日：2006-10-19
申请人： Tilo Ferchland , Menno Mennenga , Frank Poegel , Attila Roemer
发明人： Tilo Ferchland , Menno Mennenga , Frank Poegel , Attila Roemer
IPC分类号： H04B1/16
CPC分类号： H04L1/1887 , H04L1/1867 , H04W52/0229 , H04W88/02 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/22
摘要： A device for transmitting and receiving is disclosed that includes: a) an antenna, b) a transmitting/receiving unit for transmitting and receiving data according to a communications standard, which has a transmitting unit, connected to the antenna, for transmitting first data frames to a second transmitting/receiving device and a receiving unit, connected to the antenna, for receiving second data frames from the second transmitting/receiving device, and c) a control unit, connected to the transmitting/receiving unit for controlling the transmitting/receiving unit, whereby the control unit is designed (c1) to instruct the transmitting/receiving unit to transmit a first data frame and (c2) to receive the second data frame from the transmitting/receiving unit. According to the invention, the transmitting/receiving unit has a controller, which is connected to the receiving unit and the control unit and is designed d) to evaluate a second data frame, received by the receiving unit within a predefined time interval after the transmission of the first data frame, and to determine whether the second data frame contains an acknowledgment message for the successful receipt of the first data frame by the second transmitting/receiving device, and e) not to relay the second data frame to the control unit, if it is determined that it contains the acknowledgment message.
摘要翻译：公开了一种用于发送和接收的设备，包括：a）天线，b）发送/接收单元，用于根据通信标准发送和接收数据，该通信标准具有连接到天线的发送单元，用于发送第一数据帧连接到天线的第二发送/接收设备和接收单元，用于从第二发送/接收设备接收第二数据帧，以及c）控制单元，连接到发送/接收单元，用于控制发送/接收单元，由此设计控制单元（c1）以指示发送/接收单元发送第一数据帧，（c2）从发送/接收单元接收第二数据帧。根据本发明，发送/接收单元具有控制器，其连接到接收单元和控制单元，并且被设计为d）在传输之后的预定时间间隔内评估由接收单元接收的第二数据帧并且确定第二数据帧是否包含用于由第二发送/接收装置成功接收第一数据帧的确认消息，以及e）不将第二数据帧中继到控制单元，如果确定它包含确认消息。

3. 发明授权

US07184507B2 Residual phase error correction 失效
标题翻译：残余相位误差校正
公开(公告)号：US07184507B2
公开(公告)日：2007-02-27
申请号：US10284646
申请日：2002-10-31
申请人： Menno Mennenga , Frank Poegel , Michael Schmidt
发明人： Menno Mennenga , Frank Poegel , Michael Schmidt
IPC分类号： H04L7/00
CPC分类号： H04L27/0014 , H04L2027/0046 , H04W84/12
摘要： A phase error correction technique in data communication receivers such as WLAN (Wireless Local Area Network) receivers is provided. A signal having a phase error is received, and a phase error correction mechanism having a loop structure is operated on the input signal to correct the phase error. The corrected signal still has a residual phase error. The residual phase error is then compensated taking into account a loop time delay of the loop structure. Further, a phase change rate may be taken into account, and a smoothing process may additionally be performed.
摘要翻译：提供了诸如WLAN（无线局域网）接收机之类的数据通信接收机中的相位误差校正技术。接收到具有相位误差的信号，并且在输入信号上对具有环路结构的相位误差校正机构进行操作以校正相位误差。校正后的信号仍然具有残留相位误差。然后考虑到环路结构的环路时间延迟来补偿剩余相位误差。此外，可以考虑相位变化率，并且可以另外执行平滑处理。

4. 发明授权

US07327717B2 Wireless LAN receiver synchronization 有权
标题翻译：无线局域网接收机同步
公开(公告)号：US07327717B2
公开(公告)日：2008-02-05
申请号：US10185354
申请日：2002-06-27
申请人： Jörg Borowski , Uwe Eckhardt , Michael Schmidt , Frank Poegel , Menno Mennenga
发明人： Jörg Borowski , Uwe Eckhardt , Michael Schmidt , Frank Poegel , Menno Mennenga
IPC分类号： H04Q7/24 , H04B1/00 , H04J3/06
CPC分类号： H04L27/0014 , H04B1/7073 , H04B1/70758 , H04B7/0811 , H04L2025/0349 , H04L2027/0065 , H04L2027/0095 , H04W88/08
摘要： A WLAN (Wireless Local Area Network) receiver is provided that provides at least two acquisition units and at least two tracking units. The acquisition units perform a synchronization acquisition process, and the tracking units perform a synchronization tracking process. The acquisition units are arranged for being operated sequentially while the tracking units are arranged for being operated simultaneously. In an embodiment, frequency and phase error correction may be performed separately, and those units that operate at higher sampling rates may be located before lower-rate units. The synchronization process may include data-aided as well as non data-aided algorithms.
摘要翻译：提供了WLAN（无线局域网）接收器，其提供至少两个采集单元和至少两个跟踪单元。采集单元执行同步捕获处理，并且跟踪单元执行同步跟踪处理。采集单元被布置成顺序地操作，而跟踪单元被布置成同时操作。在一个实施例中，可以分别执行频率和相位误差校正，并且以较低速率单元位于较高采样速率下工作的那些单元。同步过程可以包括数据辅助以及非数据辅助算法。

5. 发明授权

US07130658B2 Shared circuitry for WLAN receiver functional units 有权
标题翻译：用于WLAN接收机功能单元的共享电路
公开(公告)号：US07130658B2
公开(公告)日：2006-10-31
申请号：US10259718
申请日：2002-09-27
申请人： Menno Mennenga , Frank Poegel , Jorg Borowski
发明人： Menno Mennenga , Frank Poegel , Jorg Borowski
IPC分类号： H04B1/38 , H04M1/00
CPC分类号： H04L7/042 , H04B1/7093 , H04B7/04 , H04B2201/70701 , H04W84/12
摘要： A WLAN (Wireless Local Area Network) receiver having a synchronization unit is provided. The synchronization unit comprises a first functional unit for performing a first signal processing function, a second functional unit for performing a second signal processing function different from the first signal processing function, and at least one signal processing circuit. In the synchronization unit the first functional unit is operating at least one of the signal processing circuits for performing the first signal processing function, and the second functional unit is arranged for operating the at least one signal processing circuit operated by the first functional unit for performing the second signal processing function. Since the above-described signal processing circuits or modules can be re-used for the antenna diversity unit and the preamble detection unit this results in a smaller number of gates and an improved density of the circuitry.
摘要翻译：提供了具有同步单元的WLAN（无线局域网）接收机。同步单元包括用于执行第一信号处理功能的第一功能单元，用于执行与第一信号处理功能不同的第二信号处理功能的第二功能单元和至少一个信号处理电路。在同步单元中，第一功能单元操作用于执行第一信号处理功能的信号处理电路中的至少一个，并且第二功能单元布置成用于操作由第一功能单元操作的至少一个信号处理电路，用于执行第二信号处理功能。由于上述信号处理电路或模块可以被重新用于天线分集单元和前导码检测单元，这导致较少数量的门和电路的改善的密度。

6. 发明申请

US20060034366A1 Low-IF multiple mode digital receiver front end and corresponding method 审中-公开
标题翻译：低中频多模数字接收机前端及相应方法
公开(公告)号：US20060034366A1
公开(公告)日：2006-02-16
申请号：US11181236
申请日：2005-07-14
申请人： Michael Schmidt , Eric Sachse , Menno Mennenga
发明人： Michael Schmidt , Eric Sachse , Menno Mennenga
IPC分类号： H03K9/04
CPC分类号： H04L27/0008
摘要： A data communications technique is provided that may be used in WLAN (Wireless Local Area Network) receivers. Data signals modulated in accordance with one of at least two different modulation schemes are received. The front end of the device has an analog and a digital part, and the digital front end includes a first and a second signal processing branch for processing received data signals modulated in accordance with different modulation schemes. The first and second processing branches have low-IF (Intermediate Frequency) topologies. There is further provided a corresponding integrated circuit chip and a method of processing received data signals.
摘要翻译：提供了可用于WLAN（无线局域网）接收机的数据通信技术。接收根据至少两种不同调制方案之一调制的数据信号。设备的前端具有模拟和数字部分，并且数字前端包括用于处理根据不同调制方案调制的接收数据信号的第一和第二信号处理分支。第一和第二处理分支具有低IF（中频）拓扑。还提供了相应的集成电路芯片和处理接收的数据信号的方法。

7. 发明授权

US07190713B2 Phase error correction using despread signals 失效
标题翻译：使用解扩信号进行相位误差校正
公开(公告)号：US07190713B2
公开(公告)日：2007-03-13
申请号：US10284641
申请日：2002-10-31
申请人： Menno Mennenga , Erich Sachse , Thomas Hanusch
发明人： Menno Mennenga , Erich Sachse , Thomas Hanusch
IPC分类号： H04B1/69 , H04B7/216
CPC分类号： H04W88/02 , H04B1/7093 , H04L27/0014 , H04L2027/003 , H04L2027/0057 , H04L2027/0067 , H04W84/12
摘要： A phase error correction technique in receivers such as WLAN receivers is provided. Such receivers comprise a phase error correction unit connected to receive an input signal having a phase error and adapted to generate an output signal having a corrected phase error. Further, the receiver comprises a despreader which is adapted to despread a data signal. The despreader is connected to the phase error correction unit to provide the despread data signal to the phase error correction unit. The phase error correction unit is arranged for correcting the phase error dependent on the despread data signal. The despreader may be a Barker matched filter or a CCK matched filter, and there may be provided a multiplexer for selecting one of the filters.
摘要翻译：提供了诸如WLAN接收机的接收机中的相位误差校正技术。这样的接收机包括相位误差校正单元，其被连接以接收具有相位误差并适于产生具有校正的相位误差的输出信号的输入信号。此外，接收机包括适于解扩数据信号的解扩器。解扩器连接到相位误差校正单元，以将解扩数据信号提供给相位误差校正单元。相位误差校正单元用于根据解扩数据信号校正相位误差。解扩器可以是巴克匹配滤波器或CCK匹配滤波器，并且可以提供用于选择滤波器之一的多路复用器。

8. 发明授权

US07180964B2 Constellation manipulation for frequency/phase error correction 有权
标题翻译：用于频率/相位误差校正的星座操作
公开(公告)号：US07180964B2
公开(公告)日：2007-02-20
申请号：US10286133
申请日：2002-11-01
申请人： Joerg Borowski , Uwe Eckhardt , Menno Mennenga
发明人： Joerg Borowski , Uwe Eckhardt , Menno Mennenga
IPC分类号： H03D3/22 , H04L27/22 , H04L27/18 , H04L27/10
CPC分类号： H04L27/0014 , H04L2027/0028 , H04L2027/0067
摘要： An error correction technique for data communication receivers such as WLAN (Wireless Local Area Network) receivers is provided. The error correction technique is for correcting a frequency and/or phase error in an incoming digitally modulated signal. A constellation manipulator is provided that is adapted to manipulate the phase constellation system of the incoming digitally modulated system by mapping each constellation point of the phase constellation system to a predefined range of phase angles. The predefined range has a width of less than 2π. Further, an error detector is provided that is connected to receive data from the constellation manipulator. The data pertains to the manipulated phase constellation system. The error detector is adapted to evaluate the data to detect the frequency and/or phase error.
摘要翻译：提供了诸如WLAN（无线局域网）接收机之类的数据通信接收机的纠错技术。误差校正技术用于校正输入的数字调制信号中的频率和/或相位误差。提供了一种星座操纵器，其适于通过将相位星座系统的每个星座点映射到预定义的相位角范围来操纵输入的数字调制系统的相位星座系统。预定范围的宽度小于2pi。此外，提供了一个连接以从星座操纵器接收数据的误差检测器。数据属于操纵相星座系统。误差检测器适于评估数据以检测频率和/或相位误差。

9. 发明授权

US07187724B2 Average tracking mechanism in data communications receivers 有权
标题翻译：数据通信接收机的平均跟踪机制
公开(公告)号：US07187724B2
公开(公告)日：2007-03-06
申请号：US10285925
申请日：2002-11-01
申请人： Menno Mennenga , Uwe Eckhardt , Michael Schmidt
发明人： Menno Mennenga , Uwe Eckhardt , Michael Schmidt
IPC分类号： H03K9/00
CPC分类号： H04L27/2647
摘要： An average tracking mechanism for a data communication receiver is provided. The average tracking mechanism of the receiver is connected to receive an input stream of data samples and is adapted to keep track of an average over a predefined number of most recently received data samples. The average tracking mechanism comprises a calculation unit that is adapted to calculate an approximate value of the average and a storage unit for storing calculated approximate values. The calculation unit is adapted to calculate the approximate value by retrieving a previously calculated approximate value from the storage unit and calculating a weighted sum of the retrieved approximate value and a current data sample. The average approximation technique may be used in a comb filter of a preamble detector in a WLAN receiver.
摘要翻译：提供了一种数据通信接收机的平均跟踪机制。接收机的平均跟踪机制被连接以接收数据采样的输入流，并且适于在预定数量的最近接收的数据样本上跟踪平均值。平均跟踪机构包括适于计算平均值的近似值的计算单元和用于存储计算出的近似值的存储单元。计算单元适于通过从存储单元检索先前计算的近似值并计算检索到的近似值和当前数据样本的加权和来计算近似值。平均近似技术可以用在WLAN接收机中的前同步码检测器的梳状滤波器中。

10. 发明授权

US07042962B2 LMS-based channel estimation 有权
公开(公告)号：US07042962B2
公开(公告)日：2006-05-09
申请号：US10259715
申请日：2002-09-27
申请人： Michael Schmidt , Menno Mennenga , Thomas Hanusch
发明人： Michael Schmidt , Menno Mennenga , Thomas Hanusch
IPC分类号： H04L27/06
CPC分类号： H04L25/025
摘要： A data communications device and method is provided that apply an LMS (Least Mean Square) channel estimation. A coefficient calculation unit generates a signal that represents at least one channel coefficient that is indicative of a property of the channel such as its finite impulse response. Further, an error calculation unit generates an error signal. Dependent on the error signal, the channel coefficients are updated by performing the LMS algorithm using a step size of two to a negative integer power. This allows for a simple, less complex implementation, and may be applied in a wireless local area network receiver for adjusting filter coefficients.

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