公开(公告)号：US08509361B2

公开(公告)日：2013-08-13

申请号：US12700623

申请日：2010-02-04

申请人： Jeng-Hong Chen ,  Pansop Kim ,  Hsin-Hsiang Liu ,  Hsin-Hsu Chi

发明人： Jeng-Hong Chen ,  Pansop Kim ,  Hsin-Hsiang Liu ,  Hsin-Hsu Chi

IPC分类号： H03D1/00

CPC分类号： H04L27/06 ,  H04L27/22

摘要： An acquisition scheme is provided for receiving a Bluetooth basic data rate (BDR) or enhanced data rate (EDR) packet. An acquisition apparatus for a Bluetooth receiver includes: a phase differentiator; a plurality of basic building blocks; a plurality of 1-bit switches; and a correlation computation equation. It features an acquisition circuit implementation with 1-bit correlator hardware shared by access code and EDR synchronization sequence correlation computations.

摘要翻译： 提供了用于接收蓝牙基本数据速率（BDR）或增强数据速率（EDR）分组的获取方案。 蓝牙接收机的采集装置包括：相位微分器; 多个基本构建块; 多个1位开关; 和相关计算方程。 它具有采用电路实现，具有由访问代码和EDR同步序列相关计算共享的1位相关器硬件。

公开(公告)号：US20110188614A1

公开(公告)日：2011-08-04

申请号：US12700623

申请日：2010-02-04

申请人： Jeng-Hong CHEN ,  Pansop Kim ,  Hsin-Hsiang Liu ,  Hsin-Hsu Chi

发明人： Jeng-Hong CHEN ,  Pansop Kim ,  Hsin-Hsiang Liu ,  Hsin-Hsu Chi

IPC分类号： H04L27/22 ,  H04L27/06

CPC分类号： H04L27/06 ,  H04L27/22

摘要： An acquisition scheme for receiving a Bluetooth basic data rate (BDR) or enhanced data rate (EDR) packet. A simplified acquisition apparatus for a Bluetooth receiver having a phase differentiator, a plurality of basic building blocks, a plurality of 1-bit switch, and a correlation computation equation. It features a simplified acquisition circuit implementation with a 1-bit correlator hardware shared by access code and EDR synchronization sequence correlation computations. A 4 MHz sampling rate is used for correlation computation. A SINC interpolator is then used to get an 8 or 16 MHz timing resolution for data bit decoding. Based on the measurement results, this simple acquisition scheme can support successful decoding of a received Bluetooth packet with a maximum timing offset of +/−40 ppm and a maximum frequency offset of +/−60 ppm without loss of receiver sensitivity.

摘要翻译： 用于接收蓝牙基本数据速率（BDR）或增强数据速率（EDR）分组的获取方案。 一种用于具有相位微分器，多个基本构建块，多个1位开关和相关计算方程的蓝牙接收器的简化采集装置。 它具有简化的采集电路实现，具有由访问代码和EDR同步序列相关计算共享的1位相关器硬件。 4 MHz采样率用于相关计算。 然后使用SINC内插器获得用于数据位解码的8或16MHz定时分辨率。 基于测量结果，这种简单的采集方案可以支持接收到的蓝牙分组的成功解码，其最大定时偏移为+/- 40ppm，最大频偏为+/- 60ppm，而不损失接收机灵敏度。

公开(公告)号：US08243781B2

公开(公告)日：2012-08-14

申请号：US12581418

申请日：2009-10-19

申请人： Pansop Kim ,  Jeng-Hong Chen ,  Hsin-Hsiang Liu

发明人： Pansop Kim ,  Jeng-Hong Chen ,  Hsin-Hsiang Liu

IPC分类号： H04B17/00 ,  H04L27/14

CPC分类号： H04L27/22 ,  H04B17/336 ,  H04L25/06 ,  H04L27/2017

摘要： The present invention discloses an effective apparatus and method to measure the received signal quality for a GFSK modulated signal with (or without) an unknown modulation index. The signal quality measurements are based on the decoded (unknown or known) bits and the trellis of the frequency discriminator output. This trellis is pre-calibrated with a reference Rx. The transmitted modulation index is also accurately estimated in this invention.

摘要翻译： 本发明公开了一种测量具有（或不具有）未知调制指数的GFSK调制信号的接收信号质量的有效装置和方法。 信号质量测量基于解码（未知或已知）位和鉴频器输出的格架。 该格子用参考Rx进行预校准。 在本发明中也准确地估计发送的调制指数。

公开(公告)号：US08300736B2

公开(公告)日：2012-10-30

申请号：US12581607

申请日：2009-10-19

申请人： Pansop Kim ,  Jeng-Hong Chen ,  Hsin-Hsiang Liu

发明人： Pansop Kim ,  Jeng-Hong Chen ,  Hsin-Hsiang Liu

IPC分类号： H04L27/00

CPC分类号： H04L27/0014 ,  H04L27/2277 ,  H04L2027/0032 ,  H04L2027/0061 ,  H04L2027/0067

摘要： The present invention discloses a method and apparatus to provide, effectively and robustly, a phase reference in phase-domain for digital phase-modulated signals. Not only the first-order but also higher order PLLs are delineated for robust and fast tracking of frequency errors and time-varying frequency errors between the transmitter and the receiver. This invention can be applied to any phase-modulated signal such as PSK, DPSK, π/4-DPSK, and CPM. The decoders with this invention can achieve close to the performance of coherent detection.Reference[1] D. Divsalar and M. K. Simon, “Multiple-symbols differential detection of MPSK,” IEEE Trans. Commun., vol. 38, pp. 300-308, March 1990.[2] Specification of the Bluetooth System, 2.0+EDR, 4 Nov. 2004.

摘要翻译： 本发明公开了一种在数字相位调制信号的相域中有效且鲁棒地提供相位参考的方法和装置。 不仅描述了一阶但是更高阶的PLL，以便在发射机和接收机之间的频率误差和时变频率误差的鲁棒和快速跟踪。 本发明可以应用于诸如PSK，DPSK，＆amp; / 4-DPSK和CPM之类的任何相位调制信号。 本发明的解码器可以实现接近相干检测的性能。 参考文献[1] D. Divsalar和M.K.Simon，Multiple-symbols differential detection of MPSK，IEEE Trans。 Commun。，vol。 38，pp。300-308，March 1990. [2]蓝牙系统规范，2.0 + EDR，2004年11月4日。

公开(公告)号：US20060088115A1

公开(公告)日：2006-04-27

申请号：US11254359

申请日：2005-10-20

申请人： Jeng-Hong Chen ,  Pansop Kim

发明人： Jeng-Hong Chen ,  Pansop Kim

IPC分类号： H04K1/10

CPC分类号： H04L27/2602 ,  H03M13/23 ,  H03M13/2717 ,  H03M13/2757 ,  H03M13/276 ,  H03M13/31 ,  H03M13/655 ,  H04B7/0413 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0083 ,  H04L27/2626

摘要： System performance in wireless communication is improved by increasing diversity in time, space and frequency. Information to be transmitted is processed by a convolution encoder to produce encoded bits. The encoded bits are interleaved and mapped to subcarriers. Symbols are created from the subcarriers and the symbols are transmitted so as to increase diversity in time, space and frequency. Circulation transmission in addition to interleaving is used to increase diversity. For example, circulation transmission can be symbol based or subcarrier based.

摘要翻译： 通过增加时间，空间和频率的多样性，提高无线通信系统的性能。 要发送的信息由卷积编码器处理以产生编码比特。 编码比特被交织并映射到子载波。 从子载波产生符号，发送符号以增加时间，空间和频率的分集。 除了交错之外的循环传输用于增加分集。 例如，循环传输可以是基于符号或子载波的。

公开(公告)号：US20110142173A1

公开(公告)日：2011-06-16

申请号：US12637388

申请日：2009-12-14

申请人： Wei-Chung Peng ,  Jeng-Hong Chen ,  Pansop Kim

发明人： Wei-Chung Peng ,  Jeng-Hong Chen ,  Pansop Kim

IPC分类号： H03D3/00

CPC分类号： H04L27/10 ,  H04L27/227 ,  H04L2027/0067

摘要： A receiver capable of decoding a symbol based on information on a previous symbol, the symbol and a next symbol in a Gaussian frequency shift keying (GFSK) communication system is provided. The receiver includes a discriminator to generate a symbol for each bit in a bit sequence, a first lookup table (LUT) to store a number of bit patterns and mapping patterns, wherein each of the bit patterns is in the form of a set of consecutive bits in the bit sequence and corresponds to a respective one of the mapping patterns, and wherein each of the mapping patterns includes a set of entries and each of the entries results from an operation of attribute values at a sample time in the waveform of a symbol, a calculator to receive a set of consecutive symbols from the discriminator and calculate a distance value between the set of consecutive symbols and each of the mapping patterns, and a comparator to identify one of the mapping patterns with a minimum distance value by comparing among the distance values from the calculator.

摘要翻译： 提供一种能够基于高斯频移键控（GFSK）通信系统中的先前符号，符号和下一个符号的信息来解码符号的接收器。 接收机包括用于为比特序列中的每个比特生成符号的鉴别器，用于存储多个比特模式和映射模式的第一查找表（LUT），其中每个比特模式是一组连续的形式 比特序列中的比特并且对应于相应的一个映射模式，并且其中每个映射模式包括一组条目，并且每个条目由来自符号波形中的采样时间的属性值的操作产生 计算器，用于从鉴别器接收一组连续的符号，并计算连续符号集合与每个映射模式之间的距离值;以及比较器，用于通过比较各个映射模式之间的比较来识别具有最小距离值的映射模式之一 计算器的距离值。

公开(公告)号：US07773680B2

公开(公告)日：2010-08-10

申请号：US11254359

申请日：2005-10-20

申请人： Jeng-Hong Chen ,  Pansop Kim

发明人： Jeng-Hong Chen ,  Pansop Kim

IPC分类号： H04K1/10

CPC分类号： H04L27/2602 ,  H03M13/23 ,  H03M13/2717 ,  H03M13/2757 ,  H03M13/276 ,  H03M13/31 ,  H03M13/655 ,  H04B7/0413 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0083 ,  H04L27/2626

摘要： System performance in wireless communication is improved by increasing diversity in time, space and frequency. Information to be transmitted is processed by a convolution encoder to produce encoded bits. The encoded bits are interleaved and mapped to subcarriers. Symbols are created from the subcarriers and the symbols are transmitted so as to increase diversity in time, space and frequency. Circulation transmission in addition to interleaving is used to increase diversity. For example, circulation transmission can be symbol based or subcarrier based.

摘要翻译： 通过增加时间，空间和频率的多样性，提高无线通信系统的性能。 要发送的信息由卷积编码器处理以产生编码比特。 编码比特被交织并映射到子载波。 从子载波产生符号，发送符号以增加时间，空间和频率的分集。 除了交错之外的循环传输用于增加分集。 例如，循环传输可以是基于符号或子载波的。

公开(公告)号：US20060088114A1

公开(公告)日：2006-04-27

申请号：US11244607

申请日：2005-10-06

申请人： Jeng-Hong Chen ,  Pansop Kim

发明人： Jeng-Hong Chen ,  Pansop Kim

IPC分类号： H04K1/10 ,  H04L27/04

CPC分类号： H04L27/2602 ,  H03M13/23 ,  H03M13/2717 ,  H03M13/2757 ,  H03M13/276 ,  H03M13/31 ,  H03M13/655 ,  H04B7/0413 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0083 ,  H04L27/2626

摘要： System performance in wireless communication is improved by increasing diversity in time, space and frequency. In OFDM-based MIMO systems in which the number of antennas M is greater then the number of simultaneously transmitted OFDM symbols N, circulation transmissions according to the present invention improve signal diversity. In symbol-based circulation transmission, N antennas are chosen from the M available antennas to transmit the N OFDM symbols. In subcarrier-based circulation transmission, M output OFDM symbols are composed from the QAM-mappled samples of the N input OFDM symbols. These M output OFDM symbols are then transmitted from the M antennas simultaneously.

公开(公告)号：US08259862B2

公开(公告)日：2012-09-04

申请号：US12637388

申请日：2009-12-14

申请人： Wei-Chung Peng ,  Jeng-Hong Chen ,  Pansop Kim

发明人： Wei-Chung Peng ,  Jeng-Hong Chen ,  Pansop Kim

IPC分类号： H04L27/14

CPC分类号： H04L27/10 ,  H04L27/227 ,  H04L2027/0067

摘要： A receiver capable of decoding a symbol based on information on a previous symbol, the symbol and a next symbol in a Gaussian frequency shift keying (GFSK) communication system is provided. The receiver includes a discriminator to generate a symbol for each bit in a bit sequence, a first lookup table (LUT) to store a number of bit patterns and mapping patterns, wherein each of the bit patterns is in the form of a set of consecutive bits in the bit sequence and corresponds to a respective one of the mapping patterns, and wherein each of the mapping patterns includes a set of entries and each of the entries results from an operation of attribute values at a sample time in the waveform of a symbol, a calculator to receive a set of consecutive symbols from the discriminator and calculate a distance value between the set of consecutive symbols and each of the mapping patterns, and a comparator to identify one of the mapping patterns with a minimum distance value by comparing among the distance values from the calculator.

摘要翻译： 提供一种能够基于高斯频移键控（GFSK）通信系统中的先前符号，符号和下一个符号的信息来解码符号的接收器。 接收机包括用于为比特序列中的每个比特生成符号的鉴别器，用于存储多个比特模式和映射模式的第一查找表（LUT），其中每个比特模式是一组连续的形式 比特序列中的比特并且对应于相应的一个映射模式，并且其中每个映射模式包括一组条目，并且每个条目由来自符号波形中的采样时间的属性值的操作产生 计算器，用于从鉴别器接收一组连续的符号，并计算连续符号集合与每个映射模式之间的距离值;以及比较器，用于通过比较各个映射模式之间的比较来识别具有最小距离值的映射模式之一 计算器的距离值。

公开(公告)号：US07593472B2

公开(公告)日：2009-09-22

申请号：US11244607

申请日：2005-10-06

申请人： Jeng-Hong Chen ,  Pansop Kim

发明人： Jeng-Hong Chen ,  Pansop Kim

IPC分类号： H04K1/10

CPC分类号： H04L27/2602 ,  H03M13/23 ,  H03M13/2717 ,  H03M13/2757 ,  H03M13/276 ,  H03M13/31 ,  H03M13/655 ,  H04B7/0413 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0083 ,  H04L27/2626

摘要： System performance in wireless communication is improved by increasing diversity in time, space and frequency. In OFDM-based MIMO systems in which the number of antennas M is greater then the number of simultaneously transmitted OFDM symbols N, circulation transmissions according to the present invention improve signal diversity. In symbol-based circulation transmission, N antennas are chosen from the M available antennas to transmit the N OFDM symbols. In subcarrier-based circulation transmission, M output OFDM symbols are composed from the QAM-mappled samples of the N input OFDM symbols. These M output OFDM symbols are then transmitted from the M antennas simultaneously.

摘要翻译： 通过增加时间，空间和频率的多样性，提高无线通信系统的性能。 在天线数M大于同时发送的OFDM符号数N的基于OFDM的MIMO系统中，根据本发明的循环传输提高了信号分集。 在基于符号的循环传输中，从M个可用天线中选择N个天线以发送N个OFDM符号。 在基于子载波的循环传输中，M个输出OFDM符号由N个输入OFDM符号的QAM映射样本组成。 然后从M个天线同时发送这些M个输出OFDM符号。