公开(公告)号：US06909738B2

公开(公告)日：2005-06-21

申请号：US09826260

申请日：2001-04-04

申请人： David Akopian ,  Ilkka Kontola ,  Harri Valio ,  Seppo Turunen

发明人： David Akopian ,  Ilkka Kontola ,  Harri Valio ,  Seppo Turunen

IPC分类号： H04B1/707 ,  H04L27/00 ,  H04L27/227 ,  H04L27/30

CPC分类号： G01S19/29 ,  H04B1/7075 ,  H04B2201/70715 ,  H04L27/2272 ,  H04L2027/0057 ,  H04L2027/0065

摘要： The invention relates to a method for acquiring a receiver (1) into a code modulated spread spectrum signal received by the receiver (1). In the method at least one replica code (r) is used which corresponds to a code used with the modulation having a pre-determined number of chips, and an examination phase is performed, in which a frequency shift of the signal within a selected frequency area is examined, and a code phase of the code used with the modulation is examined. In the method the frequency shift examination is divided into a first estimation phase and a second estimation phase, wherein in the first estimation phase the selected frequency area is divided into a first set of frequencies, and in the second estimation phase a second set of frequencies is examined nearby each frequency of the first set of frequencies. Further, a comparison for frequencies of the second set of frequencies is performed using the received signal and the replica code (r), and the results of the comparison are used to estimate the correct frequency shift.

摘要翻译： 本发明涉及一种用于将接收机（1）采集到由接收机（1）接收的码调制扩频信号中的方法。 在该方法中，使用至少一个复制码（r），其对应于具有预定数量的码片的调制使用的码，并且执行检查相位，其中在所选频率内的信号的频移 检查区域，并且检查与调制一起使用的代码的代码相位。 在该方法中，频移检查被分为第一估计阶段和第二估计阶段，其中在第一估计阶段中，将所选择的频率区域划分为第一组频率，在第二估计阶段中，将第二组频率 在第一组频率的每个频率附近检查。 此外，使用接收信号和复制码（r）进行第二组频率的频率比较，并且比较结果用于估计正确的频移。

公开(公告)号：US06909736B2

公开(公告)日：2005-06-21

申请号：US09737166

申请日：2000-12-14

申请人： David Akopian ,  Harri Valio ,  Seppo Turunen

发明人： David Akopian ,  Harri Valio ,  Seppo Turunen

IPC分类号： H04B1/7075 ,  H04B15/00 ,  H04K1/00 ,  H04L27/30

CPC分类号： H04B1/7075

摘要： A method, corresponding apparatus, and corresponding system for acquiring a received spread spectrum signal, the received signal having a carrier component at a carrier frequency, a code component having a code period, and a data component, the acquiring including matching the phase of a replica of the code component to the phase of the received code component and also determining any shift in the carrier frequency away from a transmitted carrier frequency, the method including the steps of: performing a first acquisition of the received signal so as to provide an approximately estimated carrier frequency and a phase of the replica and also so as to provide a code-wiped and an approximately carrier-wiped signal; and performing a second acquisition of the approximately carrier-wiped signal, the second acquisition including a substep of data wipe-off involving a squaring or similar operation on a signal derived from the approximately carrier-wiped signal; thereby providing a correction to the approximately estimated carrier frequency, a correction that accounts for the carrier frequency shift remaining after the first acquisition. The invention also comprehends a method including only a single acquisition, an acquisition including a data wipe-off involving a squaring or similar operation on a signal having a data component and a frequency component, i.e. the invention is of use in acquiring any kind of signal having a carrier component and a data component, regardless of whether a first, typically relatively coarse acquisition is performed.

摘要翻译： 一种用于获取接收的扩展频谱信号的方法，相应的装置和对应的系统，所述接收信号具有载波频率的载波分量，具有码周期的码分量和数据分量，所述获取包括匹配a 代码分量的副本到接收的代码分量的相位，并且还确定载波频率远离发射的载波频率的任何偏移，该方法包括以下步骤：执行接收信号的第一次采集，以便提供大致 估计载波频率和副本的相位，并且还提供代码擦除和近似载波擦除的信号; 并且执行对所述近似载波擦除信号的第二次获取，所述第二获取包括涉及对从所述近似载波擦除信号导出的信号进行平方或类似操作的数据擦除子步骤; 从而对近似估计的载波频率提供校正，该校正考虑了在第一次采集之后剩余的载波频移。 本发明还包括仅包括单次采集的方法，包括涉及对具有数据分量和频率分量的信号进行平方或类似操作的数据擦除的采集，即本发明可用于获取任何种类的信号 具有载波分量和数据分量，而不管是否执行第一，通常较粗略的采集。

公开(公告)号：US20050129146A1

公开(公告)日：2005-06-16

申请号：US10734739

申请日：2003-12-12

申请人： David Akopian ,  Seppo Turunen ,  Samuli Pietila ,  Harri Valio

发明人： David Akopian ,  Seppo Turunen ,  Samuli Pietila ,  Harri Valio

IPC分类号： G01S1/00 ,  H04B1/707 ,  H04L27/14

CPC分类号： H04B1/70775 ,  G01S19/29 ,  G01S19/30 ,  H04B1/70752 ,  H04B2201/70715

摘要： The invention relates to an apparatus supporting an acquisition of a received code modulated signal by determining the correlation between the received code modulated signal and an available replica code sequence at different code phases. It is proposed that the apparatus comprises a first acquisition engine for selecting code phases which are good candidates for being the code phase at which a received code modulated signal and an available replica code sequence have the highest correlation. The apparatus further comprises a second acquisition engine for performing a refined comparison between a received code modulated signal and an available replica code sequence for each code phase selected by the first acquisition engine. The invention relates equally to a corresponding method and to a system comprising such an apparatus and a network.

摘要翻译： 本发明涉及一种支持通过在不同代码阶段确定所接收的码调制信号与可用复制码序列之间的相关性来支持所接收的码调制信号的获取的装置。 提出该装置包括：第一采集引擎，用于选择作为接收码调制信号和可用复制码序列具有最高相关性的码相位的良好候选的码相位。 该装置还包括第二采集引擎，用于对接收到的代码调制信号和由第一采集引擎选择的每个代码阶段的可用复制代码序列进行精细比较。 本发明同样涉及相应的方法和涉及包括这种装置和网络的系统。

公开(公告)号：US07336696B2

公开(公告)日：2008-02-26

申请号：US10734739

申请日：2003-12-12

申请人： David Akopian ,  Seppo Turunen ,  Samuli Pietila ,  Harri Valio

发明人： David Akopian ,  Seppo Turunen ,  Samuli Pietila ,  Harri Valio

IPC分类号： H04B1/69

CPC分类号： H04B1/70775 ,  G01S19/29 ,  G01S19/30 ,  H04B1/70752 ,  H04B2201/70715

摘要： The invention relates to an apparatus supporting an acquisition of a received code modulated signal by determining the correlation between the received code modulated signal and an available replica code sequence at different code phases. It is proposed that the apparatus comprises a first acquisition engine for selecting code phases which are good candidates for being the code phase at which a received code modulated signal and an available replica code sequence have the highest correlation. The apparatus further comprises a second acquisition engine for performing a refined comparison between a received code modulated signal and an available replica code sequence for each code phase selected by the first acquisition engine. The invention relates equally to a corresponding method and to a system comprising such an apparatus and a network.

摘要翻译： 本发明涉及一种支持通过在不同代码阶段确定所接收的码调制信号与可用复制码序列之间的相关性来支持所接收的码调制信号的获取的装置。 提出该装置包括：第一采集引擎，用于选择作为接收码调制信号和可用复制码序列具有最高相关性的码相位的良好候选的码相位。 该装置还包括第二采集引擎，用于对接收到的代码调制信号和由第一采集引擎选择的每个代码阶段的可用复制代码序列进行精细比较。 本发明同样涉及相应的方法和涉及包括这种装置和网络的系统。

公开(公告)号：US20060159055A1

公开(公告)日：2006-07-20

申请号：US11035907

申请日：2005-01-14

申请人： Seppo Turunen

发明人： Seppo Turunen

IPC分类号： H04B7/216

CPC分类号： H04J13/00 ,  G01S19/02 ,  G01S19/24 ,  H04J13/102 ,  H04L7/042

摘要： A receiver comprising a processor having an input to receive a sequence of transmission frames conforming to a transmission protocol to represent payload data, a memory arranged to store and to provide to the processor a transmission protocol, a code provider arranged to provide to the processor one or more predetermined codes for association in a predetermined distributed manner within a group of transmission frames of a transmission sequence to represent one or more particular positions in the group of transmission frames, and wherein the processor is arranged to compile at least a portion of one or more distributed codes from a group of transmission frames of a transmission sequence received at the input using the predetermined distributed manner of the one or more predetermined codes received from the code provider, and to compare one or more compiled portions of one or more codes with the one or more predetermined codes received from the code provider to determine one or more particular positions in the group of transmission frames.

摘要翻译： 一种接收机，包括：处理器，具有用于接收符合传输协议以表示有效载荷数据的传输帧序列的输入;布置成存储并向处理器提供传输协议的存储器;代码提供器，其被布置为向处理器提供一个 或更多的预定代码，用于以传输序列的一组传输帧中的预定分布式方式关联，以表示传输帧组中的一个或多个特定位置，并且其中处理器被布置成编译一个或多个传输帧的至少一部分， 使用从代码提供者接收到的一个或多个预定代码的预定分布式方式在输入处接收到的传输序列的一组传输帧的更多分布式代码，并且将一个或多个代码的一个或多个编译部分与 从代码提供者接收到的一个或多个预定代码来确定一个或多个部分 传输帧组中的icular位置。

公开(公告)号：US07430196B2

公开(公告)日：2008-09-30

申请号：US11035907

申请日：2005-01-14

申请人： Seppo Turunen

发明人： Seppo Turunen

IPC分类号： H04B7/216 ,  H04B7/00 ,  H04J3/06 ,  H04J15/00 ,  H04L7/00 ,  H04L25/38

CPC分类号： H04J13/00 ,  G01S19/02 ,  G01S19/24 ,  H04J13/102 ,  H04L7/042

摘要： A receiver comprising a processor having an input to receive a sequence of transmission frames conforming to a transmission protocol to represent payload data, a memory arranged to store and to provide to the processor a transmission protocol, a code provider arranged to provide to the processor one or more predetermined codes for association in a predetermined distributed manner within a group of transmission frames of a transmission sequence to represent one or more particular positions in the group of transmission frames, and wherein the processor is arranged to compile at least a portion of one or more distributed codes from a group of transmission frames of a transmission sequence received at the input using the predetermined distributed manner of the one or more predetermined codes received from the code provider, and to compare one or more compiled portions of one or more codes with the one or more predetermined codes received from the code provider to determine one or more particular positions in the group of transmission frames.

摘要翻译： 一种接收机，包括：处理器，具有用于接收符合传输协议以表示有效载荷数据的传输帧序列的输入;布置成存储并向处理器提供传输协议的存储器;代码提供器，被配置为向处理器提供一个 或更多的预定代码，用于以传输序列的一组传输帧中的预定分布式方式关联，以表示传输帧组中的一个或多个特定位置，并且其中处理器被布置成编译一个或多个传输帧的至少一部分， 使用从代码提供者接收到的一个或多个预定代码的预定分布式方式在输入处接收到的传输序列的一组传输帧的更多分布式代码，并且将一个或多个代码的一个或多个编译部分与 从代码提供者接收到的一个或多个预定代码来确定一个或多个部分 传输帧组中的icular位置。

公开(公告)号：US06646596B2

公开(公告)日：2003-11-11

申请号：US10012277

申请日：2001-11-13

申请人： Jari Syrjarinne ,  Seppo Turunen

发明人： Jari Syrjarinne ,  Seppo Turunen

IPC分类号： H04B7185

CPC分类号： G01S5/0205 ,  G01S5/02 ,  G01S5/0221 ,  G01S19/20 ,  G01S19/28

摘要： The invention relates to a method for positioning a receiver based on code modulated signals transmitted by a plurality of transmitting units, which code modulated signals are formed by an individual code for each transmitting unit. In order to enable an improved positioning it is proposed that the method comprises in a first step receiving signals at said receiver. In a second step a correlation of the received signals is performed with predetermined replica codes corresponding to the individual codes employed by the transmitting units for determining potentially used channels based on resulting correlation peaks. A third step consists in determining a value indicative of the signal level of each channel for which a maximum correlation peak is obtained in a correlation with one of said predetermined codes. In a fourth step a position of said receiver is determined based on signals of channels resulting in the correlations in a maximum correlation peak, of which channels the value indicative of the signal level exceeds a threshold value.

摘要翻译： 本发明涉及一种用于基于由多个发送单元发送的码调制信号来定位接收机的方法，所述编码调制信号由用于每个发送单元的单独代码形成。 为了实现改进的定位，提出了该方法包括在第一步骤中在所述接收机处接收信号。 在第二步骤中，使用对应于由发送单元采用的各个代码的预定复制代码执行接收信号的相关性，以便基于所得到的相关峰来确定可能使用的信道。 第三步在于确定指示与所述预定码之一相关的获得最大相关峰值的每个信道的信号电平的值。 在第四步骤中，基于导致最大相关峰值的相关性的信道的信号来确定所述接收机的位置，其中信道表示信号电平的值超过阈值。

公开(公告)号：US07522656B2

公开(公告)日：2009-04-21

申请号：US11091360

申请日：2005-03-16

申请人： Qin Zhengdi ,  Seppo Turunen

发明人： Qin Zhengdi ,  Seppo Turunen

IPC分类号： H04B1/00

CPC分类号： H04B1/70752 ,  H04B2201/70703

摘要： Code synchronization is acquired as a part of receiving and decoding a spread spectrum transmission. There are received a number of signal samples that constitute a signal sample sequence. It represents a length of a received signal spread with one full length of a pseudorandom sequence used as a spreading code. The signal sample sequence is augmented at least at one end with at least one additional symbol, which produces a padded signal sample sequence. The padded signal sample sequence is in turn correlated with a locally produced sample sequence that comprises code samples representing a known form of said spreading code. The result of said correlating is used as a basis for acquired code synchronization.

摘要翻译： 作为接收和解码扩频传输的一部分，获取码同步。 接收到构成信号样本序列的多个信号样本。 它表示以用作扩展码的伪随机序列的一个全长扩展的接收信号的长度。 信号采样序列至少在一端被增加至少一个附加符号，其产生填充信号采样序列。 填充信号采样序列又与本地产生的采样序列相关，该采样序列包括代表已知形式的所述扩展码的代码样本。 所述相关的结果被用作获取的代码同步的基础。

公开(公告)号：US07298780B2

公开(公告)日：2007-11-20

申请号：US10734734

申请日：2003-12-12

申请人： Qin Zhengdi ,  Seppo Turunen

发明人： Qin Zhengdi ,  Seppo Turunen

IPC分类号： H04B1/69

CPC分类号： G01S19/21 ,  H04B1/70752 ,  H04B2201/70715

摘要： A method for determining a delay of a spread data symbol stream comprises the steps of at least partially correlating a signal, which comprises at least first and second spread data symbol streams (300, 301) that are obtained by spreading at least a first and second data symbol stream with a respective first (302) and second code, with said first code (302) to obtain at least two portions (303-1, 303-2) of a Cross-Correlation Function CCF (303), and combining said at least two portions (303-1, 303-2) of said CCF (303) to obtain a combined CCF portion from which a first delay of said first spread data symbol stream is determined, wherein said first code (302) and said second code are composed of chips and wherein the number of chips of said first code (302) is different from the number of chips of said second code. The invention further relates to a computer program, a computer program product, a device and a system.

摘要翻译： 一种用于确定扩展数据符号流的延迟的方法包括以下步骤：至少部分地将包括至少第一和第二扩展数据符号流（300,301）的信号至少部分地相关联，所述信号通过至少扩展第一和第二扩展数据符号流 具有相应的第一（302）和第二代码的数据符号流与所述第一代码（302）获得交叉相关函数CCF（303）的至少两个部分（303-1,303-2），并且组合所述 所述CCF（303）的至少两个部分（303-1,303-2）以获得组合CCF部分，从所述组合CCF部分确定所述第一扩展数据符号流的第一延迟，其中所述第一代码（302）和所述第二代码 代码由芯片组成，其中所述第一代码（302）的码片数量与所述第二代码的码片数不同。 本发明还涉及计算机程序，计算机程序产品，设备和系统。

公开(公告)号：US20060209934A1

公开(公告)日：2006-09-21

申请号：US11091360

申请日：2005-03-16

申请人： Qin Zhengdi ,  Seppo Turunen

发明人： Qin Zhengdi ,  Seppo Turunen

IPC分类号： H04B1/713

CPC分类号： H04B1/70752 ,  H04B2201/70703

摘要： Code synchronization is acquired as a part of receiving and decoding a spread spectrum transmission. There are received a number of signal samples that constitute a signal sample sequence. It represents a length of a received signal spread with one full length of a pseudorandom sequence used as a spreading code. The signal sample sequence is augmented at least at one end with at least one additional symbol, which produces a padded signal sample sequence. The padded signal sample sequence is in turn correlated with a locally produced sample sequence that comprises code samples representing a known form of said spreading code. The result of said correlating is used as a basis for acquired code synchronization.