公开(公告)号：WO2015041874A1

公开(公告)日：2015-03-26

申请号：PCT/US2014/054371

申请日：2014-09-05

Applicant: QUALCOMM INCORPORATED

Inventor： FERNANDES BARROS, Daniel Jose

IPC: H04B1/7073 ,  H04L7/04 ,  H04W52/02 ,  H04B1/7093

CPC classification number: H04W52/0229 ,  H04B1/7073 ,  H04B1/7093 ,  H04W4/80 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/40

Abstract: Systems and apparatus are disclosed for a target device to detect a trigger from an initiating device. One implementation includes a wireless device configured to correlate a received waveform with a target waveform, compare a result of the correlation to a threshold and output a first signal based on the comparison of the result and the threshold. The apparatus may also be configured to generate a sequence of bits by demodulating at least a portion of the received waveform in response to receiving the first signal, to compare in parallel a plurality of circularly rotated versions of a target sequence of bits with the demodulated sequence of bits, and to combine the results of the comparisons and output a second signal when the combined comparisons indicate that the demodulated sequence of bits corresponds to the target sequence of bits.

Abstract translation: 公开了用于目标设备的检测来自启动设备的触发的系统和设备。 一种实施方式包括被配置为将接收到的波形与目标波形相关联的无线设备，将相关性的结果与阈值进行比较，并且基于结果与阈值的比较来输出第一信号。 该装置还可以被配置为通过响应于接收到第一信号来解调所接收波形的至少一部分来生成比特序列，以将目标比特序列的多个循环版本与解调序列 并且当组合比较指示解调的比特序列对应于目标比特序列时，组合比较的结果并输出第二信号。

公开(公告)号：WO2013085575A1

公开(公告)日：2013-06-13

申请号：PCT/US2012/049372

申请日：2012-08-02

Applicant: BATTELLE ENERGY ALLIANCE, LLC

Inventor： MORADI, Hussein ,  BEHROUZ, Farhang ,  KUTSCHE, Carl, A.

IPC: H04B1/00

CPC classification number: H04B1/7093 ,  H04B1/69 ,  H04B1/707 ,  H04B1/709 ,  H04B1/71 ,  H04B2001/70935 ,  H04J11/0023 ,  H04K3/25 ,  H04K3/827 ,  H04L1/04 ,  H04L5/0021 ,  H04L9/0816 ,  H04L9/0875 ,  H04L27/264 ,  H04L2209/24 ,  H04L2209/80 ,  H04W12/04

Abstract: A transmitter includes a synthesis filter bank to spread a data symbol to a plurality of frequencies by encoding the data symbol on each frequency, apply a common pulse-shaping filter, and apply gains to the frequencies such that a power level of each frequency is less than a noise level of other communication signals within the spectrum. Each frequency is modulated onto a different evenly spaced subcarrier. A demodulator in a receiver converts a radio frequency input to a spread-spectrum signal in a baseband. A matched filter filters the spread-spectrum signal with a common filter having characteristics matched to the synthesis filter bank in the transmitter by filtering each frequency to generate a sequence of narrow pulses. A carrier recovery unit generates control signals responsive to the narrow pulses suitable for generating a phase locked loop between the demodulator, the matched filter, and the carrier recovery unit.

Abstract translation: 发射机包括合成滤波器组，用于通过对每个频率上的数据符号进行编码来将数据符号扩展到多个频率，应用公共脉冲整形滤波器，并对频率施加增益，使得每个频率的功率电平较小 比频谱内其他通信信号的噪声水平高。 每个频率被调制到不同的均匀间隔子载波上。 接收机中的解调器将射频输入转换为基带中的扩频信号。 匹配滤波器利用具有与发射机中的合成滤波器组匹配的特性的公共滤波器对扩频信号进行滤波以对每个频率进行滤波以产生窄脉冲序列。 载波恢复单元产生响应于适于在解调器，匹配滤波器和载波恢复单元之间产生锁相环的窄脉冲的控制信号。

公开(公告)号：WO2010138863A3

公开(公告)日：2011-04-14

申请号：PCT/US2010036651

申请日：2010-05-28

Applicant: QUALCOMM INC ,  CONFLITTI PAUL A

Inventor： CONFLITTI PAUL A

IPC: H04B1/707 ,  G01S19/33

CPC classification number: G01S19/32 ,  G01S19/33 ,  G01S19/37 ,  H04B1/70752 ,  H04B1/7077 ,  H04B1/7093 ,  H04B2201/70707 ,  H04B2201/70715

Abstract: Methods and apparatuses are provided for implementing a multiple-mode correlator within a receiver. The multiple-mode correlator may include at least one pre-multiplier portion and a plurality of correlation portions that selectively process multiply result signals from the pre-multiplier portion.

Abstract translation: 提供了用于在接收机内实现多模式相关器的方法和装置。 多模式相关器可以包括至少一个预乘法器部分和多个相关部分，其选择性地处理来自预乘法器部分的乘法结果信号。

公开(公告)号：WO2010138863A2

公开(公告)日：2010-12-02

申请号：PCT/US2010/036651

申请日：2010-05-28

Applicant: QUALCOMM Incorporated ,  CONFLITTI, Paul, A.

Inventor： CONFLITTI, Paul, A.

IPC: H04B1/707

CPC classification number: G01S19/32 ,  G01S19/33 ,  G01S19/37 ,  H04B1/70752 ,  H04B1/7077 ,  H04B1/7093 ,  H04B2201/70707 ,  H04B2201/70715

Abstract: Methods and apparatuses are provided for implementing a multiple-mode correlator within a receiver. The multiple-mode correlator may include at least one pre-multiplier portion and a plurality of correlation portions that selectively process multiply result signals from the pre-multiplier portion.

Abstract translation: 提供了用于在接收机内实现多模式相关器的方法和装置。 多模式相关器可以包括至少一个预乘法器部分和多个相关部分，其选择性地处理来自预乘法器部分的乘法结果信号。

公开(公告)号：WO2008132029A3

公开(公告)日：2009-01-22

申请号：PCT/EP2008054262

申请日：2008-04-09

Applicant: ERICSSON TELEFON AB L M ,  LINDOFF BENGT ,  BALDEMAIR ROBERT

Inventor： LINDOFF BENGT ,  BALDEMAIR ROBERT

IPC: H04L27/26 ,  H04B1/707 ,  H04L5/02 ,  H04L7/04

CPC classification number: H04L27/2613 ,  H04B1/7075 ,  H04B1/7093 ,  H04J13/0062 ,  H04L7/041 ,  H04L27/2655 ,  H04L27/2675

Abstract: Methods and apparatus for identifying correct peaks in outputs of matched filters in user equipment for communication systems are provided. A received signal is correlated with a replica of a synchronization signal, thereby producing a correlation output signal. Peaks are detected in the correlation output signal. The peak is tested at a plurality of predetermined locations that are based on properties of the synchronization signal, thereby producing a plurality of peak test signals. The maximum of the peak test signals is determined.

Abstract translation: 提供了用于在用于通信系统的用户设备中的匹配滤波器的输出中识别正确峰值的方法和装置。 接收到的信号与同步信号的副本相关，从而产生相关输出信号。 在相关输出信号中检测到峰。 在基于同步信号的特性的多个预定位置处测试峰值，从而产生多个峰值测试信号。 确定峰值测试信号的最大值。

公开(公告)号：WO2007146520A3

公开(公告)日：2008-07-10

申请号：PCT/US2007068744

申请日：2007-05-11

Applicant: VISHAY INTERTECHNOLOGY INC ,  BEN-BASSAT DAVID

Inventor： BEN-BASSAT DAVID

IPC: H04B1/707

CPC classification number: H04B1/70712 ,  H04B1/7093

Abstract: A bidirectional direct sequence spread spectrum half-duplex RF modem for transmitting and receiving analog and digital pulse modulation. The modem incorporates a SAW based correlator for performing the spreading and de-spreading functions in the transmitter and receiver. A programmable frequency synthesizer provices the frequency source for various signals in the modem including the local oscillator (LO), IF interrogating pulse and clock signals. An upconverter/downconverter provides frequency translation to the desired frequency band. Pulse gating and interrogating pulse shaping reduce the spectral side bands of the transmitted spread pulse. The RF modem operates as an analog or digital pulse transmitter and receiver and is applicable in data communication systems such as OOk, PWM and PPM. The transmission bit rate can be increased by using a plurality of correlators wherein each is configured with a unique function (i.e. code) that is orthogonal to the other functions.

Abstract translation: 双向直接序列扩频半双工RF调制解调器，用于发送和接收模拟和数字脉冲调制。 调制解调器包括用于在发射机和接收机中执行扩展和解扩功能的基于SAW的相关器。 可编程频率合成器提供调制解调器中各种信号的频率源，包括本地振荡器（LO），IF询问脉冲和时钟信号。 上变频器/下变频器提供频率转换到期望的频带。 脉冲门控和询问脉冲整形减少了发射扩展脉冲的频谱边带。 RF调制解调器作为模拟或数字脉冲发射器和接收器工作，适用于OOk，PWM和PPM等数据通信系统。 可以通过使用多个相关器来增加传输比特率，其中每个相关器具有与其他功能正交的唯一功能（即，代码）。

公开(公告)号：WO2005062480A1

公开(公告)日：2005-07-07

申请号：PCT/IB2004/003715

申请日：2004-11-15

Applicant: NOKIA CORPORATION ,  AKOPIAN, David

Inventor： AKOPIAN, David

IPC: H04B1/707

CPC classification number: H04B1/7093 ,  G01S19/29 ,  G01S19/30 ,  G06F17/156

Abstract: The invention relates to a device for determining in the frequency domain the correlation between a code modulated signal and a replica code sequence in parallel for various relative shifts between the code modulated signal and the replica code sequence. The device comprises a common memory arranged for storing in sequence different intermediate results in determining the correlation. The intermediate results including at least samples resulting at various stages of a time to frequency transform used for transforming samples of the code modulated signal into the frequency domain and samples resulting at various stages of a frequency to time transform used for transforming obtained correlation results into the time domain. The invention relates equally to a corresponding system, to a corresponding method and to a corresponding software program product.

Abstract translation: 本发明涉及一种用于在代码调制信号和复制代码序列之间的各种相对移位来并行确定代码调制信号和复制代码序列之间在频域中的相关性的装置。 该装置包括公共存储器，其被布置为按顺序存储不同的中间结果来确定相关性。 中间结果包括至少在时间到频率变换的各个阶段产生的样本，用于将代码调制信号的样本转换成频域，并将得到的频率到时间变换的各个阶段的结果转换成用于将获得的相关结果转换成 时域。 本发明同样涉及对应的系统，相应的方法和相应的软件程序产品。

公开(公告)号：WO2005013527A1

公开(公告)日：2005-02-10

申请号：PCT/CN2004/000881

申请日：2004-07-29

IPC: H04J13/02

CPC classification number: H04B1/7105 ,  H04B1/7093 ,  H04B1/712

Abstract: The present invention discloses a method for detecting the orthogonal code CDMA signal. It mainly includes: estimating the main power of each multipath signal's disturber; matched filtering each multipath signal and performing max proportion combination by using the power of each multipath signal's disturber, in order to get optimized matched filtering output; and united detecting the optimized matched filtering output. It may be two implement: when using the detect implement of optimized matched filtering, it only needs to perform the first two main steps; when using the united detecting implement, it needs to perform all the three steps. For the two implements estimate the main power of each multipath signal's disturber, it needs to select the disturb code's channel which join to estimation, namely select all the code's channel of this subzone or the code's channel of this subzone which not perform united detection. As a result of using the orthogonal code characteristic and channel estimation, improve the system's performance by small cost. It can be especially used in the device of orthogonal code CDMA system.

公开(公告)号：WO2004088856A3

公开(公告)日：2005-01-27

申请号：PCT/US2004008842

申请日：2004-03-22

Applicant: ARRAYCOMM INC ,  BHORA VEERENDRA ,  ROY PULAKESH ,  BOROS TIBOR

Inventor： BHORA VEERENDRA ,  ROY PULAKESH ,  BOROS TIBOR

IPC: H04B1/707

CPC classification number: H04B1/7093 ,  H04B2001/70935

Abstract: In one embodiment, a Walsh-Hadamard decoder can have a hardware efficient Fast Hadamard Transform ("FHT") engine. In one embodiment, the FHT engine can include an input to receive an input sequence to be decoded into a Walsh-Hadamard codeword. The FHT engine can further include a controller to correlate the received input sequence with a plurality of Walsh- Hadamard codewords using two, add/subtract modules. In one embodiment, the two add/subtract modules operate in parallel.

Abstract translation: 在一个实施例中，沃尔什 - 哈达玛解码器可以具有硬件高效的快速哈达玛变换（“FHT”）引擎。 在一个实施例中，FHT引擎可以包括用于接收要解码为沃尔什 - 哈达玛码字的输入序列的输入。 FHT引擎还可以包括控制器，以使用两个加/减模块将接收的输入序列与多个沃尔什 - 哈达玛码字进行相关。 在一个实施例中，两个加/减模块并行操作。

公开(公告)号：WO2004088531A1

公开(公告)日：2004-10-14

申请号：PCT/IB2004/001515

申请日：2004-03-31

Applicant: NOKIA CORPORATION ,  AKOPIAN, David

Inventor： AKOPIAN, David

IPC: G06F17/15

CPC classification number: H04B1/7093 ,  G01S19/30 ,  G06F17/15 ,  H04B1/7075

Abstract: The invention relates to a method, a processing unit and a system for determining the correlation between samples of a received code modulated signal and samples of replica code sequences. In order to simplify and accelerate the process, it is proposed that the received samples and the replica samples are aligned to each other and that the positions of the samples in the received signal and in the replica code sequences are grouped, each group comprising all positions at which the composition of the values of the samples of all of the replica code sequences is similar. The values of the received samples which are associated to a respective group are combined separately for each group to obtain a respective preliminary result. Then, a correlation value is determined for each replica code sequence by combining the preliminary results obtained for all groups separately for each replica code sequence, taking into account the values of the samples of the replica sequences in the respective group.

Abstract translation: 本发明涉及一种用于确定接收到的码调制信号的样本与复制码序列的样本之间的相关性的方法，处理单元和系统。 为了简化和加速过程，提出接收样本和复本样本彼此对齐，并且接收信号和副本码序列中样本的位置被分组，每组包括所有位置 其中所有复制码序列的样本的值的组成相似。 将与各组相关联的接收样本的值分别组合为每组，以获得相应的初步结果。 然后，考虑到各组中的副本序列的样本的值，通过组合针对每个复制码序列分别获得的所有组的初步结果，确定每个复制码序列的相关值。