公开(公告)号：WO2017142638A1

公开(公告)日：2017-08-24

申请号：PCT/US2017/012430

申请日：2017-01-06

Applicant: QUALCOMM INCORPORATED

Inventor： LUONG, Le Nguyen ,  GOPALAN, RaviKiran

IPC: H04L7/04 ,  H04B1/709 ,  H04W56/00 ,  H04W4/00 ,  H04B1/7075

CPC classification number: H04W72/085 ,  H04B1/713 ,  H04L7/042 ,  H04L43/16 ,  H04W4/80 ,  H04W56/008

Abstract: Systems and methods pertain to operating a receiver of wireless signals such as Bluetooth or Bluetooth Low Energy (BLE) signals. A correlator is provided to correlate a wireless signal received by the receiver with a device identifier corresponding to a wanted device from which the receiver wants to receive wireless signals, to generate a correlator output. An adaptive acquisition threshold generator generates an adaptive acquisition threshold based on a signal strength of the wireless signal, and a comparator is used to determine if the wireless signal is a wanted signal intended for the receiver, based on a comparison of the correlator output with the adaptive acquisition threshold.

Abstract translation: 系统和方法涉及操作诸如蓝牙或蓝牙低能量（BLE）信号之类的无线信号的接收器。 提供相关器以将由接收器接收的无线信号与对应于接收器想要接收无线信号的所需设备的设备标识符相关联以生成相关器输出。 自适应采集阈值生成器基于无线信号的信号强度生成自适应采集阈值，并且比较器用于基于相关器输出与所述相关器输出的比较来确定无线信号是否是预期用于接收器的期望信号 自适应采集阈值。

公开(公告)号：WO2014053543A1

公开(公告)日：2014-04-10

申请号：PCT/EP2013/070544

申请日：2013-10-02

Applicant: SCHEYTT, Johann-Christoph

Inventor： SCHEYTT, Johann-Christoph ,  WOLF, Andreas

IPC: H04B1/709 ,  G06F17/15

CPC classification number: H04B1/709

Abstract: Die vorliegende Erfindung betrifft Vorrichtungen zur Detektion von PSSS-Signalen mit gemischt-analog-digitaler Schaltungstechnik, sowie Verfahren zur Detektion von PSSS-Signalen, um einen energie- und hardware-effizienten Betrieb des Empfängers zu ermöglichen.

Abstract translation: 本发明涉及一种用于检测PSSS信号以使接收器的能量和硬件的高效运行，用于检测与模拟数字混合电路技术PSSS信号的装置，以及方法。

公开(公告)号：WO2012038736A1

公开(公告)日：2012-03-29

申请号：PCT/GB2011/051765

申请日：2011-09-20

Applicant: Novelda AS ,  GRANHAUG, Kristian ,  MEISAL, Kjetil ,  GARDINER, Stephen

Inventor： GRANHAUG, Kristian ,  MEISAL, Kjetil

IPC: H04B1/709 ,  G04F10/00 ,  H03M7/16 ,  H04L25/40 ,  H04B1/7163

CPC classification number: H03K5/14 ,  G01S7/2926 ,  G01S13/0209 ,  G01S13/18 ,  H03K5/22 ,  H03K21/00 ,  H03M7/165 ,  H04B1/709 ,  H04B1/71637 ,  H04L7/042

Abstract: A continuous time counter and method of counting are provided, comprising a sequence of adding stages which build up the output based on the inputs by progressively adding new values to opposite ends of an output stack. The counter provides for fast and reliable continuous time counting operations.

Abstract translation: 提供连续时间计数器和计数方法，其包括通过逐渐将新值添加到输出堆叠的相对端而基于输入来增加输出的级的序列。 该计数器提供快速可靠的连续计时操作。

公开(公告)号：WO0245288A3

公开(公告)日：2003-01-30

申请号：PCT/US0143619

申请日：2001-11-20

Applicant: QUALCOMM INC

Inventor： EASTON KENNETH D ,  BLACK PETER J

IPC: H04B1/707 ,  H04B1/709 ,  H04B1/7093 ,  H04Q7/38

CPC classification number: H04B1/707 ,  H04B1/709 ,  H04B2001/70935

Abstract: A receiver unit includes a first buffer that receives and stores digitized samples at a particular sample rate and a data processor that retrieves segments of digitized samples from the first buffer and processes the retrieved segments with a particular set of parameters values. The data processor is operated based on a processing clock having a frequency that is (e.g., then or more times) higher than the sample rate. Multiple instances of the received signal can be processed by retrieving and processing multiple segments of digitized samples from the first buffer. the receiver unit typically further includes a receiver that receives and processes a transmitted signal to provide the digitized samples and a controller that dispatches tasks for the data processor. The data processor can be designed to include a correlator, a symbol demodulation and combiner, a first accumulator, and a second buffer, or a combination thereof. The correlator despreads the retrieved segments of digitized samples with corresponding segments of PN despreading sequences to provide correlated samples, which are further processed by the symbol demodulation and combiner to provide processed symbols. The second buffer stores the processed symbols, and can be designed to provide de-interleaving of the processed symbols.

Abstract translation: 接收器单元包括以特定采样率接收和存储数字化样本的第一缓冲器，以及从第一缓冲器检索数字化采样的段并且使用特定参数值集处理检索的段的数据处理器。 数据处理器基于具有比采样率高的（例如，或多次）的频率的处理时钟来操作。 可以通过从第一缓冲器检索和处理数字化样本的多个部分来处理接收信号的多个实例。 接收器单元通常还包括接收和处理发射信号以提供数字化样本的接收机以及为数据处理器分派任务的控制器。 数据处理器可以被设计为包括相关器，符号解调和组合器，第一累加器和第二缓冲器，或其组合。 相关器对所取回的数字化样本段进行解扩，以对应的解扩序列段进行解扩，以提供相关样本，由符号解调和组合器进一步处理，以提供处理后的符号。 第二缓冲器存储经处理的符号，并且可以被设计为提供经处理符号的解交织。

公开(公告)号：WO01091317A1

公开(公告)日：2001-11-29

申请号：PCT/FI2001/000499

申请日：2001-05-23

IPC: H04B1/707 ,  H04B1/7075 ,  H04B1/708 ,  H04B1/709 ,  H04B1/7117 ,  H04B7/08

CPC classification number: H04B1/70758 ,  H04B1/708 ,  H04B1/709 ,  H04B1/7117 ,  H04B7/086 ,  H04B7/0897 ,  H04B2001/70706 ,  H04B2201/70707

Abstract: The invention relates to a receiver which comprises an antenna array and rake branches for demodulating the received signals. A search branch calculates two-dimensional impulse response of the received signal, and transmits information on the most favorable components found to the rake branches. At least one rake branch comprises beam formers, and correlators coupled to the inputs of the beam formers, and a demodulator coupled to the outputs of the correlators, a code generator, control means controlling the operation of the code generator and the beam formers, to which control means receive information from the search branch about the incoming direction and delay of the signal component, and calculation means which calculate and transmit to the control means, on the basis of the outputs of the correlators, information on how the code generator and the beam formers are to be controlled.

Abstract translation: 本发明涉及一种接收机，其包括天线阵列和用于解调接收信号的耙分支。 搜索分支计算接收信号的二维脉冲响应，并且发送关于在耙分支上找到的最有利分量的信息。 至少一个耙分支包括波束形成器和耦合到波束形成器的输入的相关器，以及耦合到相关器的输出的解调器，代码发生器，控制代码发生器和波束形成器的操作的控制装置， 该控制装置从搜索分支接收关于信号分量的输入方向和延迟的信息;以及计算装置，其基于相关器的输出计算并发送给控制装置，关于代码生成器和 梁形成器要被控制。

公开(公告)号：WO01029982A1

公开(公告)日：2001-04-26

申请号：PCT/US2000/023297

申请日：2000-08-24

IPC: H04B1/709 ,  H04B1/7117 ,  H04B1/712 ,  H04B7/26 ,  H04Q7/38 ,  H04B1/707

CPC classification number: H04B1/712 ,  H04B1/709 ,  H04B1/7117 ,  H04B2201/709727

Abstract: Correlation times for a RAKE receiver are determined from time differentials between multipath components of a received signal based on correlation metrics, preferably signal strength measurements, associated with the multipath components. According to various embodiments of the present invention, selection strategies are employed in which "desired signal collecting" and "interference collecting" correlation times may be selected using average optimal (AO) or instantaneous optimal (IO) selection criteria. These criteria may include, for example, thresholds for signal strengths associated with multipath components of a signal at the correlation times, where the signal strengths may include absolute or relative measures of signal power or signal to noise ratio. According to alternative embodiments, correlation times are selected using an inverse filter of an estimated channel response. Related apparatus is also described.

Abstract translation: 基于与多路径分量相关联的相关度量，优选信号强度测量，从接收信号的多径分量之间的时间差确定RAKE接收机的相关时间。 根据本发明的各种实施例，采用选择策略，其中可以使用平均最优（AO）或瞬时最优（IO）选择标准来选择“期望的信号收集”和“干扰收集”相关时间。 这些标准可以包括例如与在相关时间的信号的多径分量相关联的信号强度的阈值，其中信号强度可以包括信号功率或信噪比的绝对或相对测量。 根据替代实施例，使用估计的信道响应的逆滤波器来选择相关时间。 还描述了相关装置。

公开(公告)号：WO01005052A1

公开(公告)日：2001-01-18

申请号：PCT/US2000/018602

申请日：2000-07-07

IPC: H04B1/709 ,  H04B1/7107 ,  H04B1/7115 ,  H04B1/707

CPC classification number: H04B1/7115 ,  H04B1/709 ,  H04B1/7107 ,  H04B2201/70701

Abstract: A system and method for canceling interference present in a code-division multiple access (CDMA) channel signal received at a CDMA receiver that is caused by multipath components of a transmitted pilot channel signal or by soft handoff conditions is computationally efficient because it operates at symbol rates. The channel signal from which such multipath interference is canceled can be either a traffic (data) channel or the pilot channel itself. Interference signals are produced in groups corresponding to the fingers of the CDMA rake receiver. The interference signals corresponding to each finger are used to cancel interference in the other fingers.

Abstract translation: 一种用于消除由在CDMA接收机处接收的由发射的导频信道信号或由软切换条件的多径分量引起的码分多址（CDMA）信道信号中存在的干扰的系统和方法在计算上是有效的，因为它以符号 率。 这种多径干扰被消除的信道信号可以是业务（数据）信道或导频信道本身。 干扰信号以对应于CDMA耙式接收机的手指的组产生。 对应于每个手指的干扰信号用于消除其他手指中的干扰。

公开(公告)号：WO00070792A1

公开(公告)日：2000-11-23

申请号：PCT/US2000/012674

申请日：2000-05-10

IPC: H04B1/7075 ,  H04B1/709 ,  H04B7/216

CPC classification number: H04B1/70752 ,  H04B1/70751 ,  H04B1/70753 ,  H04B1/70756 ,  H04B1/709 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70707 ,  H04B2201/70709

Abstract: An apparatus (114) for acquiring a pseudo-random (PN) sequence timing for a code division multiple access (CDMA) radiotelephone (104). A buffer (230) stores samples of representations of at least one pilot signal. A correlator (202) coupled to the buffer (230) is operable to correlate at least a portion of the samples with a PN sequence at each of a plurality of different PN offsets to produce corresponding correlation energies. A controller (116) coupled to the correlator (202) interrupts the correlator (202) as soon as the PN sequence at a particular PN offset produces a correlation energy at least equal to an energy threshold.

Abstract translation: 一种用于获取码分多址（CDMA）无线电话机（104）的伪随机（PN）序列定时的装置（114）。 缓冲器（230）存储至少一个导频信号的表示样本。 耦合到缓冲器（230）的相关器（202）可操作以使至少一部分采样与多个不同PN偏移中的每一个处的PN序列相关联，以产生相应的相关能量。 一旦特定PN偏移的PN序列产生至少等于能量阈值的相关能量，耦合到相关器（202）的控制器（116）中断相关器（202）。

公开(公告)号：WO00065797A1

公开(公告)日：2000-11-02

申请号：PCT/US2000/010743

申请日：2000-04-21

IPC: H04B1/7075 ,  H04B1/707 ,  H04B1/709 ,  H04L27/00 ,  H04L27/233 ,  H04L25/02

CPC classification number: H04L27/2332 ,  H04B1/707 ,  H04L2027/003 ,  H04L2027/0057

Abstract: Coherent detection of high-speed digital wireless communications becomes more difficult when the frequencies of the transmitter and receiver oscillators do not coincide. A frequency-locked loop may be used to characterize this frequency offset by processing the samples received on a pilot channel. Rather than using the offset information thus derived to correct the frequency of the received signal, the invention realizes considerable computational savings by applying a frequency correction to the despread pilot samples instead.

Abstract translation: 当发射机和接收机振荡器的频率不一致时，高速数字无线通信的相干检测变得更加困难。 频率锁定环可用于通过处理在导频信道上接收的样本来表征该频率偏移。 而不是使用如此导出的偏移信息来校正接收信号的频率，本发明通过对解扩频特征样本应用频率校正来实现相当大的计算节省。

公开(公告)号：WO9934528A3

公开(公告)日：1999-09-16

申请号：PCT/IB9801963

申请日：1998-12-07

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS SVENSKA AB

Inventor： KAMGAR FARBOD ,  MOTAMED MARIAM ,  ROUPHAEL ANTOINE JEAN

IPC: H04B1/7085 ,  H04B1/709 ,  H04B1/707

CPC classification number: H04B1/7085 ,  H04B1/709

Abstract: An apparatus and method for locking onto a pseudo-noise code in an IS-95 spread spectrum communications system is disclosed. In response to an error signal, a pseudo-noise generator (312 or 416) generates an on-time pseudo-noise signal, an early pseudo-noise signal delayed by less than one-half of a chip interval, and a late pseudo-noise signal advanced by less than one-half of a chip interval. A correlator (302 and 304, or 404) correlates a received signal with the early and late pseudo-noise signals to generate the error signal. The combination of the pseudo-noise generator (312 or 416) and the correlator (302 and 304, or 404) creates a loop in which the on-time pseudo-noise signal tracks a received pseudo-noise code more closely than in prior art devices and enables a deinterleave and decode device (210) within the receiver to demodulate the received signal more effectively.

Abstract translation: 公开了一种锁定在IS-95扩频通信系统中的伪噪声码的装置和方法。 响应于误差信号，伪噪声发生器（312或416）产生导通时间伪噪声信号，延迟小于码片间隔的一半的早期伪噪声信号， 噪声信号提前不到芯片间隔的一半。 相关器（302和304或404）将接收信号与早期和晚期伪噪声信号相关以产生误差信号。 伪噪声发生器（312或416）和相关器（302和304或404）的组合产生一个循环，其中导通时间伪噪声信号比现有技术更接近地跟踪接收的伪噪声码 并且使得接收机内的解交织和解码设备（210）能够更有效地解调所接收的信号。