公开(公告)号：US07949038B2

公开(公告)日：2011-05-24

申请号：US12001992

申请日：2007-12-12

申请人： Giuseppe Avellone ,  Maristella Frazzetto ,  Ettore Messina

发明人： Giuseppe Avellone ,  Maristella Frazzetto ,  Ettore Messina

IPC分类号： H04B1/00

CPC分类号： G01S19/30 ,  H04B1/7075 ,  H04B1/7085

摘要： A method and a system for the acquisition and tracking of BOC(m,n) modulated codes, m/n equal to an integer, in which a correlation function is calculated of the BOC(m,n) modulated code received from a remote transmitter with a code wa locally generated at a receiver terminal according to one from the following the relationships: wa(τ)=c(τn)−a·[prn(τn+Tc/2)−prn(τn−Tc/2)] wa(τ)=c(τn)−a·[prn(τn+nTc/2m)−prn(τn−nTc/2m)] wa(τ)=c(τn)−a·[prn(τn+nTc/4m)+prn(τn−nTc/4m)] wa(τ)=c(τn)−a·[prn(τn+3nTc/4m)+prn(τn−3nTc/4m)] w(τ)=[prn(τn+nTc/4m)+prn(τn−nTc/4m)] w(τ)=[prn(τn+nTc/2m)−prn(τn−nTc/2m)] wherein c(τ) is a local replica of the BOC modulated pseudo-random noise code with delay τn, PRN(τ) is a replica of the unmodulated pseudo-random noise code, and a is a predetermined weight coefficient, and the correlation function being at the base of an acquisition test function whereby a code acquisition is recognized for a value of the test function being higher than a predetermined threshold.

摘要翻译： 用于获取和跟踪BOC（m，n）调制码的方法和系统，m / n等于整数，其中计算从远程发射机接收的BOC（m，n）调制码的相关函数 根据以下关系中的一个，在接收机终端本地生成代码wa：wa（τ）= c（τn）-a·[prn（τn+ Tc / 2）-prn（τn-Tc / 2）] wa（τ）= c（τn）-a·[prn（τn+ nTc / 2m）-prn（τn-nTc / 2m）] wa（τ）= c（τn）-a·[prn（τn+ nTc / 4m）+ prn（τn-nTc / 4m）] wa（τ）= c（τn）-a·[prn（τn+ 3nTc / 4m）+ prn（τn-3nTc / 4m）] w（τ）= [ （τn+ nTc / 4m）+ prn（τn-nTc / 4m）] w（τ）= [prn（τn+ nTc / 2m）-prn（τn-nTc / 2m）]其中c（τ） 具有延迟τn的BOC调制伪随机噪声码，PRN（τ）是未调制的伪随机噪声码的复制品，a是预定的权重系数，相关函数是采集测试函数的基础 由此针对测试功能b的值识别代码获取 高于预定阈值。

公开(公告)号：US07586979B2

公开(公告)日：2009-09-08

申请号：US12244521

申请日：2008-10-02

申请人： Alberto Serratore ,  Giuseppe Avellone ,  Francesco Rimi ,  Nicolo Ivan Piazzese ,  Agostino Galluzzo

发明人： Alberto Serratore ,  Giuseppe Avellone ,  Francesco Rimi ,  Nicolo Ivan Piazzese ,  Agostino Galluzzo

IPC分类号： H04B1/07

CPC分类号： H04L1/0071 ,  H04L1/0618

摘要： Encoded digital symbols are transmitted via a first pair of antennas and at least one second pair of antennas. The sets of symbols used for the transmission via the second pair of antennas are re-ordered temporally into subsets of symbols with respect to the symbols used for the first pair of antennas. For the first pair of antennas, there is used a signal subjected to encoding with a code-division-multiple-access code and subjected to spreading with a spreading code, and, likewise, for the second pair or pairs of antennas there are used signals subjected to encoding with respective code-division-multiple-access code and subjected to spreading with a respective spreading code. At least one between the respective code-division-multiple-access code and the respective spreading code used for the transmission via the second pair of antennas is different from the code-division-multiple-access code and from the spreading code used for the transmission via the first pair of antennas. The solution can be extended to the use of a plurality of second pairs of antennas in transmission and/or to the use of a plurality of antennas in reception.

摘要翻译： 编码的数字符号经由第一对天线和至少一个第二对天线发送。 用于经由第二对天线的传输的符号组被相对于用于第一对天线的符号在时间上重新排序成符号子集。 对于第一对天线，使用经码分多址的编码的信号，并用扩展码进行扩频，同样地，对于第二对或天线对，使用信号 对各个码分多址码进行编码，并用相应的扩展码进行扩频。 各代码分多址和用于通过第二对天线传输的各扩频码中的至少一个不同于码分多址码和用于传输的扩展码 通过第一对天线。 解决方案可以扩展到在传输中使用多个第二对天线和/或在接收中使用多个天线。

公开(公告)号：US07460581B2

公开(公告)日：2008-12-02

申请号：US10910955

申请日：2004-08-03

申请人： Alberto Serratore ,  Giuseppe Avellone ,  Francesco Rimi ,  Nicolò Ivan Piazzese ,  Agostino Galluzzo

发明人： Alberto Serratore ,  Giuseppe Avellone ,  Francesco Rimi ,  Nicolò Ivan Piazzese ,  Agostino Galluzzo

IPC分类号： H04B1/707

CPC分类号： H04L1/0071 ,  H04L1/0618

摘要： Encoded digital symbols are transmitted via a first pair of antennas and at least one second pair of antennas. The sets of symbols used for the transmission via the second pair of antennas are re-ordered temporally into subsets of symbols with respect to the symbols used for the first pair of antennas. For the first pair of antennas, there is used a signal subjected to encoding with a code-division-multiple-access code and subjected to spreading with a spreading code, and, likewise, for the second pair or pairs of antennas there are used signals subjected to encoding with respective code-division-multiple-access code and subjected to spreading with a respective spreading code. At least one between the respective code-division-multiple-access code and the respective spreading code used for the transmission via the second pair of antennas is different from the code-division-multiple-access code and from the spreading code used for the transmission via the first pair of antennas. The solution can be extended to the use of a plurality of second pairs of antennas in transmission and/or to the use of a plurality of antennas in reception.

摘要翻译： 编码的数字符号经由第一对天线和至少一个第二对天线发送。 用于经由第二对天线的传输的符号组被相对于用于第一对天线的符号在时间上重新排序成符号子集。 对于第一对天线，使用经码分多址的编码的信号，并用扩展码进行扩频，同样地，对于第二对或天线对，使用信号 对各个码分多址码进行编码，并用相应的扩展码进行扩频。 各代码分多址和用于通过第二对天线传输的各扩频码中的至少一个不同于码分多址码和用于传输的扩展码 通过第一对天线。 解决方案可以扩展到在传输中使用多个第二对天线和/或在接收中使用多个天线。

公开(公告)号：US07386006B2

公开(公告)日：2008-06-10

申请号：US10768400

申请日：2004-01-30

申请人： Francesco Rimi ,  Giuseppe Avellone ,  Francesco Pappalardo ,  Filippo Speziali ,  Agostino Galluzzo

发明人： Francesco Rimi ,  Giuseppe Avellone ,  Francesco Pappalardo ,  Filippo Speziali ,  Agostino Galluzzo

IPC分类号： H04J3/06 ,  H04B7/00

CPC分类号： H04B1/70735 ,  H04B1/7083 ,  H04B1/709 ,  H04B2201/70707

摘要： In a first step, slot synchronization may be obtained by setting in correlation the received signal with a primary sequence, which represents the primary channel, and storing the received signal. During a second step, the correlator may be re-used for correlating the received signal with a secondary sequence corresponding to the secondary synchronization codes. The correlator may include a first filter and a second filter connected in series, which receive a first secondary sequence and a second secondary sequence, which may include Golay sequences. Architectures of parallel and serial types, as well as architectures designed for reusing further circuit parts are also disclosed. The invention is particularly applicable in mobile communication systems based upon standards such as UMTS, CDMA2000, IS95, and WBCDMA.

摘要翻译： 在第一步骤中，可以通过将接收到的信号与表示主信道的主序列进行相关设置并存储所接收的信号来获得时隙同步。 在第二步骤期间，相关器可以被重新用于将接收的信号与对应于次级同步码的次级序列相关联。 相关器可以包括串联连接的第一滤波器和第二滤波器，其接收可以包括格雷序列的第一次级序列和第二次级序列。 还公开了并行和串行类型的架构，以及为再次使用其他电路部件而设计的架构。 本发明特别适用于基于诸如UMTS，CDMA2000，IS95和WBCDMA的标准的移动通信系统。

公开(公告)号：US20100135435A1

公开(公告)日：2010-06-03

申请号：US12622054

申请日：2009-11-19

申请人： Giuseppe Visalli ,  Giuseppe Avellone

发明人： Giuseppe Visalli ,  Giuseppe Avellone

IPC分类号： H04L27/38

CPC分类号： H04L25/0224 ,  H04L25/061 ,  H04L27/32 ,  H04L27/3818

摘要： The method is for estimating the fading coefficients of a plurality of transmission channels on which signals to be sent, generated as a function of a sequence of symbols, are transmitted according to a particular modulation, e.g. AM-PSK modulation. The fading coefficients are estimated by using estimations of the transmitted symbols obtained in advance, thus obtaining DC components of the received signal by coherent demodulation locked to the phases of the transmitted AM-PSK signals, and processing these DC components. The method may not require the choice of a stochastic distribution model of the channel fading, thus it remains efficient even when the channel characteristics vary significantly. Moreover, the method works correctly even if the received stream is disturbed by inter-symbolic interference (ISI) and/or by multi-path fading.

摘要翻译： 该方法是用于估计多个传输信道的衰落系数，其上根据特定调制发送作为符号序列生成的要发送的信号，例如， AM-PSK调制。 通过使用预先获得的发送符号的估计来估计衰落系数，从而通过锁定到发送的AM-PSK信号的相位的相干解调获得接收信号的DC分量，并处理这些DC分量。 该方法可能不需要选择信道衰落的随机分布模型，因此即使当信道特性显着变化时，仍然保持有效。 此外，即使接收的流被符号间干扰（ISI）和/或多路径衰落干扰，该方法也能正常工作。

公开(公告)号：US07424068B2

公开(公告)日：2008-09-09

申请号：US10930715

申请日：2004-08-30

申请人： Giuseppe Visalli ,  Francesco Pappalardo ,  Giuseppe Avellone ,  Francesco Rimi ,  Agostino Galluzzo

发明人： Giuseppe Visalli ,  Francesco Pappalardo ,  Giuseppe Avellone ,  Francesco Rimi ,  Agostino Galluzzo

IPC分类号： H03D3/18

CPC分类号： H04L1/0059 ,  H03M13/256 ,  H04L1/0054 ,  H04L1/0068 ,  H04L25/067 ,  H04L27/2272 ,  H04L2027/0055 ,  H04L2027/0067

摘要： A method for decoding signals with encoded symbols over a symbol interval that modulate a carrier. The method includes phase locking the signal to be decoded to obtain a phase-locked signal. The value assumed by the phase-locked signal on at least one subinterval in each symbol interval is detected. The method continues with attributing to the decoded symbol corresponding to each symbol interval a value that is a function of the value detected the subinterval. The subinterval in question can be a single subinterval located at the end of the symbol interval. Alternatively, the value assumed by the phase-locked signal on a plurality of subintervals in each symbol interval is detected, and a respective majority value of said phase-locked signal within said plurality of subintervals is identified. A value determined on the basis of the majority value is attributed to the decoded symbol corresponding to each symbol interval.

摘要翻译： 一种用于在调制载体的符号间隔上对具有编码符号的信号进行解码的方法。 该方法包括对要解码的信号进行锁相以获得锁相信号。 检测每个符号间隔中的至少一个子间隔上的锁相信号所假设的值。 该方法继续归因于对应于每个符号间隔的解码符号，该值是检测到子间隔的值的函数。 所涉及的子间隔可以是位于符号间隔结束处的单个子间隔。 或者，检测每个符号间隔中的多个子间隔上的锁相信号所假设的值，并且识别所述多​​个子区间内的所述锁相信号的相应多数值。 基于多数值确定的值归因于对应于每个符号间隔的解码符号。

公开(公告)号：US06956890B2

公开(公告)日：2005-10-18

申请号：US09953062

申请日：2001-09-13

申请人： Alessandro Lattuca ,  Giuseppe Avellone ,  Ettore Messina ,  Agostino Galluzzo

发明人： Alessandro Lattuca ,  Giuseppe Avellone ,  Ettore Messina ,  Agostino Galluzzo

IPC分类号： C06F20060101 ,  H04B7/216 ,  H04J13/00 ,  H04J13/12 ,  H04K1/00 ,  H04L9/00 ,  H04B1/707

CPC分类号： H04J13/12 ,  H04J13/0048

摘要： The device can be used for generating, in the framework of a CDMA communications terminal, both Walsh-Hadamard channeling codes and OVSF channeling codes. The device comprises a code generator preferably configured for generating Walsh-Hadamard codes. When the device is used for generating Walsh-Hadamard codes, the corresponding index values, applied to an input of the device, are sent to the input of the code generator. Generation of OVSF codes envisages, instead, that the corresponding indices, sent to an input of the device, undergo mapping, which enables generation, starting from the OVSF code, of the corresponding index identifying a string of symbols that is identical within the Walsh-Hadamard code. In this way each string of OVSF code symbols is generated, so producing, by means of the code generator, the generation of the identical string of symbols included in the Walsh-Hadamard code.

摘要翻译： 该装置可用于在CDMA通信终端的框架内生成Walsh-Hadamard信道码和OVSF信道码。 该设备包括代码生成器，优选地被配置用于生成沃尔什 - 哈达玛代码。 当设备用于生成沃尔什 - 哈达玛码时，应用于设备输入的相应索引值被发送到代码生成器的输入端。 OVSF代码的产生设想，发送到设备的输入端的相应索引经历映射，其使得能够从OVSF代码开始生成相应的索引，该索引标识在沃尔什 - 哈达马代码。 以这种方式，产生每串OVSF码符号，因此通过代码生成器产生包含在沃尔什 - 哈达玛码中的相同符号串的生成。

公开(公告)号：US07643588B2

公开(公告)日：2010-01-05

申请号：US11287112

申请日：2005-11-23

申请人： Giuseppe Visalli ,  Giuseppe Avellone

发明人： Giuseppe Visalli ,  Giuseppe Avellone

IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L25/08

CPC分类号： H04L25/0224 ,  H04L25/061 ,  H04L27/32 ,  H04L27/3818

摘要： The method is for estimating the fading coefficients of a plurality of transmission channels on which signals to be sent, generated as a function of a sequence of symbols, are transmitted according to a particular modulation, e.g. AM-PSK modulation. The fading coefficients are estimated by using estimations of the transmitted symbols obtained in advance, thus obtaining DC components of the received signal by coherent demodulation locked to the phases of the transmitted AM-PSK signals, and processing these DC components. The method may not require the choice of a stochastic distribution model of the channel fading, thus it remains efficient even when the channel characteristics vary significantly. Moreover, the method works correctly even if the received stream is disturbed by inter-symbolic interference (ISI) and/or by multi-path fading.

摘要翻译： 该方法是用于估计多个传输信道的衰落系数，其上根据特定调制发送作为符号序列生成的要发送的信号，例如， AM-PSK调制。 通过使用预先获得的发送符号的估计来估计衰落系数，从而通过锁定到发送的AM-PSK信号的相位的相干解调获得接收信号的DC分量，并处理这些DC分量。 该方法可能不需要选择信道衰落的随机分布模型，因此即使当信道特性显着变化时，仍然保持有效。 此外，即使接收的流被符号间干扰（ISI）和/或多路径衰落干扰，该方法也能正常工作。

公开(公告)号：US07333470B2

公开(公告)日：2008-02-19

申请号：US10841414

申请日：2004-05-07

申请人： Francesco Rimi ,  Giuseppe Avellone ,  Francesco Pappalardo ,  Agostino Galluzzo

发明人： Francesco Rimi ,  Giuseppe Avellone ,  Francesco Pappalardo ,  Agostino Galluzzo

IPC分类号： H04J3/06

CPC分类号： H04B1/70735 ,  H04B1/7083 ,  H04B2201/70702 ,  H04B2201/70707

摘要： To execute the cell-search procedure in a cellular communication system (such as a system based upon the 3GPP TDD standard), there are available identification codes for the second step (slot synchronization) and for the third step (identification of the scrambling codes). The identification codes are identified by a process of correlation with the received signal and are used for obtaining from a correspondence table the parameters for the execution of the second step (CD) or of the third step (SCR). The correspondence table is stored in a reduced form by the identification, according to rules of symmetry and redundancy, of subtables designed to generate the entire table by appropriate combination operations. The search procedure in the correspondence table thus reduced is conveniently modified by the introduction of the combination operations. A preferential application is in mobile communication systems based upon standards such as UMTS, CDMA2000, IS95 or WBCDMA.

摘要翻译： 为了在蜂窝通信系统（例如基于3GPP TDD标准的系统）中执行小区搜索过程，存在用于第二步骤（时隙同步）和第三步骤（识别扰码）的可用识别码， 。 通过与接收信号相关的处理来识别识别码，并且用于从对应表获得执行第二步骤（CD）或第三步骤（SCR）的参数。 根据对称规则和冗余度，通过适当组合操作生成整个表格的子表的标识，缩小形式存储对应表。 通过引入组合操作可以方便地修改由此减少的对应表中的搜索过程。 基于诸如UMTS，CDMA2000，IS95或WBCDMA的标准的移动通信系统中的优先应用。

公开(公告)号：US07289426B2

公开(公告)日：2007-10-30

申请号：US10669167

申请日：2003-09-23

申请人： Francesco Pappalardo ,  Daniele Lo Iacono ,  Giuseppe Avellone ,  Agostino Galluzzo

发明人： Francesco Pappalardo ,  Daniele Lo Iacono ,  Giuseppe Avellone ,  Agostino Galluzzo

IPC分类号： H04J11/00

CPC分类号： H04J13/0044 ,  H04J13/12

摘要： Described herein is a method for parallel generating Walsh-Hadamard (WH) channelization codes and Orthogonal Variable Spreading Factor (OVSF) channelization codes, which are channelization codes formed by a plurality of strings of antipodal digits, each having a given length L and being identifiable by respective indices I formed by strings of binary digits, each having a given length N equal to the logarithm in base two of the length L of the channelization codes, the antipodal digits of the channelization codes assuming the values +1 and −1 and the binary digits of said indices I assuming the values 0 and 1. The method according to the invention enables determination of the antipodal digits of the channelization codes according to the binary digits of the corresponding indices I, implementing specific EXOR logic operations, by means of which there are first generated intermediate binary digits, which are then encoded with the antipodal digits of the channelization codes using an encoding criterion according to which the intermediate binary digits 0 and 1 can be encoded, respectively, with the antipodal digits −1 and +1 or else with the antipodal digits +1 and −1 according to the type of binary encoding chosen a priori for the antipodal digits themselves.

摘要翻译： 这里描述了一种用于并行生成沃尔什 - 哈达玛（WH）信道化码和正交可变扩频因子（OVSF）信道化码的方法，它们是由多个对数字串组成的信道化码，每个字符串具有给定的长度L并且是可识别的 通过由二进制数字串形成的各自的索引I，每一个二进制数字的每一个具有等于信道化码的长度L的基本二的对数的给定长度N，假定值+1和-1的信道化码的对数位和 假定值0和1的所述索引I的二进制数字。根据本发明的方法能够根据对应索引I的二进制数字来确定信道化码的对数位，实现特定的EXOR逻辑运算，借此， 有第一个生成的中间二进制数字，然后使用相邻的编码与信道化代码的对数位数 ding标准，根据该标准，中间二进制数字0和1可以分别编码为对数位数-1和+1，或者根据根据先前选择的二进制编码的类型编码反对数字+1和-1 对数字本身