公开(公告)号：US08223888B2

公开(公告)日：2012-07-17

申请号：US11953007

申请日：2007-12-07

申请人： Frank Poegel ,  Eric Sachse ,  Michael Schmidt

发明人： Frank Poegel ,  Eric Sachse ,  Michael Schmidt

IPC分类号： H04L27/00

CPC分类号： H04B1/707

摘要： A method and device is provided for the detection of data symbols contained in a received radio signal, whereby each data symbol is allocated transmit-side a symbol value-specific PN sequence of successive PN chips in the chip clock and the PN sequences allocated to the data symbols are offset QPSK modulated. The method of the invention for incoherent detection provides for converting the received radio signal into a complex baseband signal sampled in the chip clock, generating a demodulated signal by differential demodulation of the complex baseband signal sampled in the chip clock, providing the derived sequences, calculating correlation results by correlating the demodulated signal with the derived sequences, and deriving, i.e., detecting, the values of the data symbols by evaluating the correlation results. In this case, each derived sequence is assigned to a PN sequence allocable transmit-side and includes derived chips, whose values in each case correspond to a logic linking of particular PN chips of the PN sequence allocable transmit-side that is assigned the derived sequence. The invention relates furthermore to a corresponding receiving unit.

摘要翻译： 提供了一种用于检测包含在接收的无线电信号中的数据符号的方法和装置，由此每个数据符号被分配给芯片时钟中的连续PN码元的符号值特定PN序列和分配给 数据符号被QPSK调制偏移。 用于非相干检测的本发明的方法提供了将接收的无线电信号转换成在芯片时钟采样的复基带信号，通过在芯片时钟采样的复基带信号的差分解调产生解调信号，提供导出的序列，计算 通过将解调信号与导出序列进行相关，以及通过评估相关结果推导出数据符号的值来检测相关结果。 在这种情况下，将每个派生序列分配给PN序列可分发发射侧，并且包括导出的码片，其值在每种情况下对应于分配了导出序列的PN序列可分发发射端的特定PN码片的逻辑链接 。 本发明还涉及相应的接收单元。

公开(公告)号：US08526540B2

公开(公告)日：2013-09-03

申请号：US13495697

申请日：2012-06-13

申请人： Frank Poegel ,  Eric Sachse ,  Michael Schmidt

发明人： Frank Poegel ,  Eric Sachse ,  Michael Schmidt

IPC分类号： H04L27/00

CPC分类号： H04B1/707

摘要： A method and device is provided for detecting data symbols in a received radio signal. Each data symbol is allocated transmit-side a symbol value-specific PN sequence of successive PN chips in the chip clock, and the allocated PN sequences are offset QPSK modulated. The method for incoherent detection includes converting the received radio signal into a complex baseband signal sampled in the chip clock, generating a demodulated signal by differential demodulation of the complex baseband signal, calculating correlation results by correlating the demodulated signal with the derived sequences, and deriving the values of the data symbols by evaluating the correlation results. Each derived sequence is assigned to a PN sequence allocable transmit-side and includes derived chips, whose values correspond to a logic linking of particular PN chips of the PN sequence allocable transmit-side that is assigned the derived sequence. The invention relates furthermore to a corresponding receiving unit.

摘要翻译： 提供了一种用于检测接收到的无线电信号中的数据符号的方法和装置。 每个数据符号在芯片时钟中被分配给发送侧的连续PN码元的符号值专用PN序列，并且所分配的PN序列被偏移QPSK调制。 非相干检测方法包括将接收到的无线电信号转换成在芯片时钟采样的复基带信号，通过复基带信号的差分解调产生解调信号，通过将解调信号与导出序列相关来计算相关结果， 通过评估相关结果的数据符号的值。 每个导出的序列被分配给PN序列可分发发射侧，并且包括导出的码片，其值对应于分配了导出序列的PN序列可分发端侧的特定PN码片的逻辑链路。 本发明还涉及相应的接收单元。

公开(公告)号：US20120314815A1

公开(公告)日：2012-12-13

申请号：US13495697

申请日：2012-06-13

申请人： Frank Poegel ,  Eric Sachse ,  Michael Schmidt

发明人： Frank Poegel ,  Eric Sachse ,  Michael Schmidt

IPC分类号： H04L27/233

CPC分类号： H04B1/707

摘要： A method and device is provided for detecting data symbols in a received radio signal. Each data symbol is allocated transmit-side a symbol value-specific PN sequence of successive PN chips in the chip clock, and the allocated PN sequences are offset QPSK modulated. The method for incoherent detection includes converting the received radio signal into a complex baseband signal sampled in the chip clock, generating a demodulated signal by differential demodulation of the complex baseband signal, calculating correlation results by correlating the demodulated signal with the derived sequences, and deriving the values of the data symbols by evaluating the correlation results. Each derived sequence is assigned to a PN sequence allocable transmit-side and includes derived chips, whose values correspond to a logic linking of particular PN chips of the PN sequence allocable transmit-side that is assigned the derived sequence. The invention relates furthermore to a corresponding receiving unit.

摘要翻译： 提供了一种用于检测接收到的无线电信号中的数据符号的方法和装置。 每个数据符号在芯片时钟中被分配给发送侧的连续PN码元的符号值专用PN序列，并且所分配的PN序列被偏移QPSK调制。 非相干检测方法包括将接收到的无线电信号转换成在芯片时钟采样的复基带信号，通过复基带信号的差分解调产生解调信号，通过将解调信号与导出序列相关来计算相关结果， 通过评估相关结果的数据符号的值。 每个导出的序列被分配给PN序列可分发发射侧，并且包括导出的码片，其值对应于分配了导出序列的PN序列可分发端侧的特定PN码片的逻辑链路。 本发明还涉及相应的接收单元。

公开(公告)号：US20080165834A1

公开(公告)日：2008-07-10

申请号：US11953007

申请日：2007-12-07

申请人： Frank Poegel ,  Eric Sachse ,  Michael Schmidt

发明人： Frank Poegel ,  Eric Sachse ,  Michael Schmidt

IPC分类号： H04B1/38 ,  H04L27/233

CPC分类号： H04B1/707

摘要： A method and device is provided for the detection of data symbols contained in a received radio signal, whereby each data symbol is allocated transmit-side a symbol value-specific PN sequence of successive PN chips in the chip clock and the PN sequences allocated to the data symbols are offset QPSK modulated. The method of the invention for incoherent detection provides for converting the received radio signal into a complex baseband signal sampled in the chip clock, generating a demodulated signal by differential demodulation of the complex baseband signal sampled in the chip clock, providing the derived sequences, calculating correlation results by correlating the demodulated signal with the derived sequences, and deriving, i.e., detecting, the values of the data symbols by evaluating the correlation results. In this case, each derived sequence is assigned to a PN sequence allocable transmit-side and includes derived chips, whose values in each case correspond to a logic linking of particular PN chips of the PN sequence allocable transmit-side that is assigned the derived sequence. The invention relates furthermore to a corresponding receiving unit.

摘要翻译： 提供了一种用于检测包含在接收的无线电信号中的数据符号的方法和装置，由此每个数据符号被分配给芯片时钟中的连续PN码元的符号值特定PN序列和分配给 数据符号被QPSK调制偏移。 用于非相干检测的本发明的方法提供了将接收的无线电信号转换成在芯片时钟采样的复基带信号，通过在芯片时钟采样的复基带信号的差分解调产生解调信号，提供导出的序列，计算 通过将解调信号与导出序列进行相关，以及通过评估相关结果推导出数据符号的值来检测相关结果。 在这种情况下，将每个派生序列分配给PN序列可分发发射侧，并且包括导出的码片，其值在每种情况下对应于分配了导出序列的PN序列可分发发射端的特定PN码片的逻辑链接 。 本发明还涉及相应的接收单元。

公开(公告)号：US09015220B2

公开(公告)日：2015-04-21

申请号：US13551144

申请日：2012-07-17

申请人： Tilo Ferchland ,  Frank Poegel ,  Eric Sachse

发明人： Tilo Ferchland ,  Frank Poegel ,  Eric Sachse

IPC分类号： G06F17/15 ,  H04B1/707 ,  H04L7/04 ,  H04L7/08

CPC分类号： H04B1/707 ,  G06F17/15 ,  H04B2201/70707 ,  H04L7/042 ,  H04L7/043 ,  H04L7/08

摘要： In certain embodiments, a device includes a first filter. The first filter is operable to produce at least one correlation result by at least correlating an input signal sequence with a link sequence. The first filter includes a delay element. The device also includes a second filter sharing the delay element of the first filter.

摘要翻译： 在某些实施例中，设备包括第一过滤器。 第一滤波器可操作以通过至少将输入信号序列与链路序列相关联来产生至少一个相关结果。 第一滤波器包括延迟元件。 该装置还包括共享第一滤波器的延迟元件的第二滤波器。

公开(公告)号：US20130013660A1

公开(公告)日：2013-01-10

申请号：US13551144

申请日：2012-07-17

申请人： Tilo Ferchland ,  Frank Poegel ,  Eric Sachse

发明人： Tilo Ferchland ,  Frank Poegel ,  Eric Sachse

IPC分类号： G06F17/15

CPC分类号： H04B1/707 ,  G06F17/15 ,  H04B2201/70707 ,  H04L7/042 ,  H04L7/043 ,  H04L7/08

摘要： A correlation device is provided that includes an adder for adding an input signal sequence and an auxiliary signal sequence to obtain an addition signal sequence, and a delay element for delaying the addition signal sequence to obtain the auxiliary signal sequence, whereby the delay element has a plurality of coefficient outputs for providing addition signal sequence coefficients. The correlation device comprises further a linking element for the coefficient-wise linking of an addition signal sequence coefficient with a linking coefficient to obtain a correlation result.

摘要翻译： 提供了一种相关装置，其包括用于将输入信号序列和辅助信号序列相加以获得加法信号序列的加法器和用于延迟加法信号序列以获得辅助信号序列的延迟元件，由此延迟元件具有 多个系数输出用于提供加法信号序列系数。 相关装置还包括用于将加法信号序列系数与连接系数进行系数连接以获得相关结果的链接元件。

公开(公告)号：US20120039424A1

公开(公告)日：2012-02-16

申请号：US13182286

申请日：2011-07-13

申请人： Tilo Ferchland ,  Rolf Jaehne ,  Frank Poegel ,  Eric Sachse

发明人： Tilo Ferchland ,  Rolf Jaehne ,  Frank Poegel ,  Eric Sachse

IPC分类号： H04L27/06

CPC分类号： H04B17/318 ,  H04B1/7073 ,  H04L7/042 ,  H04W4/80 ,  H04W24/00

摘要： In one embodiment, a method includes receiving a radio frequency (RF) signal; synchronizing the received RF signal with a preamble to determine a time base; determining a first energy value of the received RF signal by averaging received signal strength indication (RSSI) values of the received RF signal over a first period of time; determining a second energy value of the received RF signal over a second period of time; determining a difference value between the first energy value and the second energy value; comparing the difference value with a predetermined energy threshold value; determining a quality value of the received RF signal; comparing the quality value of the received RF signal with a predetermined quality threshold value; and, if the difference value exceeds the predetermined energy threshold value or the quality value is below the predetermined quality threshold value, then erasing the time base.

摘要翻译： 在一个实施例中，一种方法包括接收射频（RF）信号; 将接收到的RF信号与前导码同步以确定时基; 通过在第一时间段内平均所接收的RF信号的接收信号强度指示（RSSI）值来确定所接收的RF信号的第一能量值; 在第二时间段内确定所接收的RF信号的第二能量值; 确定所述第一能量值和所述第二能量值之间的差值; 将所述差值与预定能量阈值进行比较; 确定所接收的RF信号的质量值; 将所接收的RF信号的质量值与预定质量阈值进行比较; 并且如果差值超过预定能量阈值或质量值低于预定质量阈值，则擦除时基。

公开(公告)号：US07366139B2

公开(公告)日：2008-04-29

申请号：US10184422

申请日：2002-06-27

申请人： Frank Poegel ,  Wolfram Kluge ,  Eric Sachse

发明人： Frank Poegel ,  Wolfram Kluge ,  Eric Sachse

IPC分类号： H04Q7/00

CPC分类号： H04B7/0822

摘要： An antenna diversity method and a corresponding communication device are disclosed that may be used in wireless LAN receivers. An AGC (Automatic Gain Control) unit controls a gain when processing signals received from antennae. A periodical switching process is performed between at least two antennae. During this periodical switching process, signals from each of the antennae are received alternately. The gain obtained by processing each received signal by means of the AGC unit is monitored and the obtained gain is compared with a predetermined threshold value. When for one of the at least two antennae the gain is below the predetermined threshold value, the periodical switching process is stopped and the antenna used at the time when stopping the periodical switching process is selected. This technique may provide an improved antenna diversity of low complexity, high performance and a short settling time.

摘要翻译： 公开了可用于无线LAN接收机中的天线分集方法和相应的通信设备。 AGC（自动增益控制）单元在处理从天线接收的信号时控制增益。 在至少两个天线之间执行周期性切换处理。 在该周期性切换处理期间，交替地接收来自每个天线的信号。 监视通过AGC单元处理每个接收信号而获得的增益，并将获得的增益与预定阈值进行比较。 当对于至少两个天线中的一个天线的增益低于预定阈值时，周期性切换处理被停止，并且选择在停止周期性切换处理时使用的天线。 该技术可以提供低复杂度，高性能和短建立时间的改进的天线分集。

公开(公告)号：US20140315508A1

公开(公告)日：2014-10-23

申请号：US14257473

申请日：2014-04-21

申请人： Tilo Ferchland ,  Rolf Jaehne ,  Frank Poegel ,  Eric Sachse

发明人： Tilo Ferchland ,  Rolf Jaehne ,  Frank Poegel ,  Eric Sachse

IPC分类号： H04B17/00 ,  H04W4/00 ,  H04W24/00

CPC分类号： H04B17/318 ,  H04B1/7073 ,  H04L7/042 ,  H04W4/80 ,  H04W24/00

摘要： In one embodiment, a method includes receiving a radio frequency (RF) signal; synchronizing the received RF signal with a preamble to determine a time base; determining a first energy value of the received RF signal by averaging received signal strength indication (RSSI) values of the received RF signal over a first period of time; determining a second energy value of the received RF signal over a second period of time; determining a difference value between the first energy value and the second energy value; comparing the difference value with a predetermined energy threshold value; determining a quality value of the received RF signal; comparing the quality value of the received RF signal with a predetermined quality threshold value; and, if the difference value exceeds the predetermined energy threshold value or the quality value is below the predetermined quality threshold value, then erasing the time base.

摘要翻译： 在一个实施例中，一种方法包括接收射频（RF）信号; 将接收到的RF信号与前导码同步以确定时基; 通过在第一时间段内平均所接收的RF信号的接收信号强度指示（RSSI）值来确定所接收的RF信号的第一能量值; 在第二时间段内确定所接收的RF信号的第二能量值; 确定所述第一能量值和所述第二能量值之间的差值; 将所述差值与预定能量阈值进行比较; 确定所接收的RF信号的质量值; 将所接收的RF信号的质量值与预定质量阈值进行比较; 并且如果差值超过预定能量阈值或质量值低于预定质量阈值，则擦除时基。

公开(公告)号：US08705670B2

公开(公告)日：2014-04-22

申请号：US13182286

申请日：2011-07-13

申请人： Tilo Ferchland ,  Rolf Jaehne ,  Frank Poegel ,  Eric Sachse

发明人： Tilo Ferchland ,  Rolf Jaehne ,  Frank Poegel ,  Eric Sachse

IPC分类号： H04L27/06

CPC分类号： H04B17/318 ,  H04B1/7073 ,  H04L7/042 ,  H04W4/80 ,  H04W24/00

摘要： In one embodiment, a method includes receiving a radio frequency (RF) signal; synchronizing the received RF signal with a preamble to determine a time base; determining a first energy value of the received RF signal by averaging received signal strength indication (RSSI) values of the received RF signal over a first period of time; determining a second energy value of the received RF signal over a second period of time; determining a difference value between the first energy value and the second energy value; comparing the difference value with a predetermined energy threshold value; determining a quality value of the received RF signal; comparing the quality value of the received RF signal with a predetermined quality threshold value; and, if the difference value exceeds the predetermined energy threshold value or the quality value is below the predetermined quality threshold value, then erasing the time base.

摘要翻译： 在一个实施例中，一种方法包括接收射频（RF）信号; 将接收到的RF信号与前导码同步以确定时基; 通过在第一时间段内平均所接收的RF信号的接收信号强度指示（RSSI）值来确定所接收的RF信号的第一能量值; 在第二时间段内确定所接收的RF信号的第二能量值; 确定所述第一能量值和所述第二能量值之间的差值; 将所述差值与预定能量阈值进行比较; 确定所接收的RF信号的质量值; 将所接收的RF信号的质量值与预定质量阈值进行比较; 并且如果差值超过预定能量阈值或质量值低于预定质量阈值，则擦除时基。