专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2007038969A1 METHOD AND SYSTEM FOR MULTIPLE ANTENNA COMMUNICATIONS, RELATED APPARATUS AND CORRESPONDING COMPUTER PROGRAM PRODUCT 审中-公开
标题翻译：多天线通信方法与系统，相关设备及相关计算机程序产品
公开(公告)号：WO2007038969A1
公开(公告)日：2007-04-12
申请号：PCT/EP2005/010799
申请日：2005-10-05
申请人： TELECOM ITALIA S.P.A , PIRELLI & C.S.P.A. , MELIS, Bruno , RUSCITTO, Alfredo , SEMENZATO, Paolo , MELE, Renata , GRASSANO, Giuseppe
发明人： MELIS, Bruno , RUSCITTO, Alfredo , SEMENZATO, Paolo , MELE, Renata , GRASSANO, Giuseppe
IPC分类号： H04B7/06 , H04B7/08
CPC分类号： H04B7/0671 , H04B7/04 , H04B7/0837 , H04B7/0894
摘要： A system for diversity processing two signals (INPUT 1 , INPUT 2 ) transmitted and/or received via two diversity antennas (1, 2) includes at least four respective propagation paths coupling the signals to the two diversity antennas (1, 2). Diversity processing is primarily in the form of decorrelation achieved by means of time variable delay elements (161 to 164; 261 to 264; 1261 to 1264) that apply time variable delays to the signals propagating over at least two of the propagation paths in the system. The related processing may take place either at RF or IF, or at baseband, whereby the time variable delays are applied by subjecting the baseband signals to multiplication by a complex signal.
摘要翻译：用于分集处理经由两个分集天线（1,2）发送和/或接收的两个信号（INPUT 1，INPUT 2 ）的系统包括至少四个相应的传播路径耦合到两个分集天线（1,2）的信号。分集处理主要是通过时间可变延迟元件（161至164; 261至264; 1261至1264）实现的去相关的形式，其对通过系统中的至少两个传播路径传播的信号施加时间可变延迟。相关处理可以在RF或IF或基带处进行，由此通过使基带信号乘以复数信号来应用时间可变延迟。

2. 发明申请

WO2006037364A1 VARIABLE DELAY TRANSMIT DIVERSITY 审中-公开
标题翻译：可变延迟传输多样性
公开(公告)号：WO2006037364A1
公开(公告)日：2006-04-13
申请号：PCT/EP2004/011204
申请日：2004-10-07
申请人： TELECOM ITALIA S.P.A. , MELIS, Bruno , RUSCITTO, Alfredo , SEMENZATO, Paolo
发明人： MELIS, Bruno , RUSCITTO, Alfredo , SEMENZATO, Paolo
IPC分类号： H04B7/06
CPC分类号： H04B7/0671
摘要： A system for transmitting a signal via diversity antennas (60, 70; 150, 160, 170, 180; 190, 200) includes: at least one delay element (100) for generating at least one delayed replica of the signal subject to a given delay; the signal and the at least one delayed replica being adapted to be transmitted via the diversity antennas (60, 70; 150, 160, 170, 180; 190, 200), and a control unit (110) for the at least one delay element (100) for varying (110) the given delay (100), whereby the signal and the at least one delayed replica, transmitted via the diversity antennas (60, 70; 150, 160, 170, 180; 190, 200), give rise to alternate constructive and destructive combinations therebetween.
摘要翻译：一种用于经由分集天线（60,70; 150,160,170,180; 190,200）发送信号的系统包括：至少一个延迟元件（100），用于产生经受给定的信号的信号的至少一个延迟复制品延迟; 所述信号和所述至少一个延迟副本适于经由所述分集天线（60,70; 150,160,170,180; 190,200）发送;以及控制单元（110），用于所述至少一个延迟元件（100），用于改变（110）给定延迟（100），由此经由分集天线（60,70; 150,160,170,180; 190,200）发送的信号和至少一个延迟复制品给出在它们之间发生交替的建设性和破坏性组合。

3. 发明申请

WO2010000275A1 A METHOD OF TRANSMITTING DATA, CORRESPONDING SYSTEMS AND COMPUTER PROGRAM PRODUCT THEREFOR 审中-公开
标题翻译：传输数据的方法，相应的系统和计算机程序产品
公开(公告)号：WO2010000275A1
公开(公告)日：2010-01-07
申请号：PCT/EP2008/005320
申请日：2008-06-30
申请人： TELECOM ITALIA S.P.A. , BOLLEA, Loris , MELIS, Bruno , ROSSI, Roberto , RUSCITTO, Alfredo , SEMENZATO, Paolo
发明人： BOLLEA, Loris , MELIS, Bruno , ROSSI, Roberto , RUSCITTO, Alfredo , SEMENZATO, Paolo
IPC分类号： H04B7/06
CPC分类号： H04B7/0682 , H04B7/0617 , H04B7/0619
摘要： A method of transmitting signals from a base station towards user terminals in a cellular communication system. The method includes generating (18) a plurality of diversity signals, wherein at least one of said diversity signals is subjected to a selectively variable RF phase shift (20). Specifically, a set of radio link quality indicators (KPI) is determined at the base station, wherein each radio link quality indicator (KPI) is representative for the quality of the radio link between the base station and a respective one of the user terminals (UE). The set of radio link quality indicators (KPI) is used to generate an aggregated radio quality indicator, which in turn is used to selectively vary the variable RF phase shift. For example, the phase shift may be selected, which optimizes the aggregated radio quality indicator.
摘要翻译：一种在蜂窝通信系统中从基站向用户终端发送信号的方法。该方法包括生成（18）多个分集信号，其中所述分集信号中的至少一个经受选择性变化的RF相移（20）。具体地，在基站处确定一组无线链路质量指示符（KPI），其中每个无线电链路质量指示符（KPI）代表基站与相应的一个用户终端之间的无线电链路的质量（ UE）。无线链路质量指标（KPI）的集合用于生成聚合的无线电质量指示符，其反过来用于选择性地改变可变RF相移。例如，可以选择相移，其优化聚合的无线电质量指示符。

4. 发明申请

WO2007048427A1 METHOD AND SYSTEM FOR MULTIPLE ANTENNA COMMUNICATIONS USING MULTIPLE TRANSMISSION MODES, RELATED APPARATUS AND COMPUTER PROGRAM PRODUCT 审中-公开
标题翻译：使用多种传输模式的多天线通信的方法和系统，相关设备和计算机程序产品
公开(公告)号：WO2007048427A1
公开(公告)日：2007-05-03
申请号：PCT/EP2005/011529
申请日：2005-10-27
申请人： TELECOM ITALIA S.P.A. , PIRELLI & C. S.p.A. , MELIS, Bruno , RUSCITTO, Alfredo , SEMENZATO, Paolo , MELE, Renata , GRASSANO, Giuseppe
发明人： MELIS, Bruno , RUSCITTO, Alfredo , SEMENZATO, Paolo , MELE, Renata , GRASSANO, Giuseppe
IPC分类号： H04B7/06 , H04B7/08
CPC分类号： H04B7/0894 , H04B7/0671
摘要： A system for diversity processing a signal (INPUT) propagated via two diversity antennas (1, 2) includes: respective propagation paths for propagating two replicas of the signal (INPUT), these propagation paths being coupled to the two diversity antennas (1, 2), so that the replicas are propagated via different antennas (1, 2) ; a time variable delay element (16) for subjecting at least one of the replicas to a time variable delay; and a level adjusting element, such as an asymmetric 15 splitter (14) to produce a level imbalance (A) between the power levels of the replicas propagated via the two diversity antennas (1, 2).
摘要翻译：用于分集处理经由两个分集天线（1,2）传播的信号（INPUT）的系统包括：用于传播信号（INPUT）的两个副本的各个传播路径，这些传播路径耦合到两个分集天线（1,2）），使得副本通过不同的天线（1,2）传播; 时间可变延迟元件（16），用于对所述副本中的至少一个进行时间可变延迟; 以及电平调整元件，例如非对称15分路器（14），以在通过两个分集天线（1,2）传播的副本的功率电平之间产生电平不平衡（A）。

5. 发明申请

WO2010075864A1 A METHOD FOR DISTRIBUTED MOBILE COMMUNICATIONS, CORRESPONDING SYSTEM AND COMPUTER PROGRAM PRODUCT 审中-公开
标题翻译：分布式移动通信方法，相关系统和计算机程序产品
公开(公告)号：WO2010075864A1
公开(公告)日：2010-07-08
申请号：PCT/EP2008/011138
申请日：2008-12-30
申请人： TELECOM ITALIA S.p.A , BOLDI, Mauro , GIANOLA, Paolo , MELIS, Bruno , RUSCITTO, Alfredo
发明人： BOLDI, Mauro , GIANOLA, Paolo , MELIS, Bruno , RUSCITTO, Alfredo
IPC分类号： H04B7/02 , H04W88/08
CPC分类号： H04B7/022 , H04B7/0617 , H04W4/18 , H04W88/08 , H04W92/10
摘要： A method of arranging exchange of signals between user terminals (U 1 , U 2 ,...U N ) in a cellular communication system and at least one base station. The base station includes a central unit (CU OFDM ) and a plurality of remote units (RU OFDM ). The signals are exchanged (14-18) between the central unit (CU OFDM ) and the remote units (RU OFDM ) as aggregated signals for plural user terminals. The signals are processed (150) at the remote units (RU OFDM ) as distinct signals each associated to a respective one of the plural user terminals (U 1 , U 2 ,...U N ).
摘要翻译：一种在蜂窝通信系统和至少一个基站中在用户终端（U1，U2，... UN）之间设置信号交换的方法。基站包括中央单元（CUOFDM）和多个远程单元（RUOFDM）。在中央单元（CUOFDM）和远程单元（RUOFDM）之间交换信号（14-18）作为多个用户终端的聚合信号。信号在远程单元（RUOFDM）处理（150）作为与多个用户终端（U1，U2，... UN）中的相应一个相关联的不同信号。

6. 发明申请

WO2004047327A1 EARLY-LATE SYNCHRONIZER HAVING REDUCED TIMING JITTER 审中-公开
标题翻译：具有减少时序抖动的早期同步器
公开(公告)号：WO2004047327A1
公开(公告)日：2004-06-03
申请号：PCT/EP2002/012814
申请日：2002-11-15
申请人： TELECOM ITALIA S.P.A. , STMICROELECTRONICS S.R.L. , ETTORRE, Donato , GRAZIANO, Maurizio , MELIS, Bruno , FINOTELLO, Andrea , RUSCITTO, Alfredo
发明人： ETTORRE, Donato , GRAZIANO, Maurizio , MELIS, Bruno , FINOTELLO, Andrea , RUSCITTO, Alfredo
IPC分类号： H04B1/707
CPC分类号： H04B1/7085 , H04B1/709
摘要： A device for maintaining fine alignment between an incoming spread spectrum signal and a locally generated code in a digital communication receiver comprises: - a delay line (56) for storing a plurality of consecutive samples (E-1, E, M, L, L+1) of the incoming spread spectrum signal; - three digitally controlled interpolators (24, 26, 28) for determining by interpolation between consecutive samples an interpolated early sample (e), an interpolated middle sample (m) and an interpolated late sample (1); - two correlators (30, 32) for calculating an error signal (ξ) as the difference between the energy of the symbols computed from the interpolated early (e) and late (1) samples; - a circuit for generating a control signal (S¿OUT?) for controlling the interpolation phase of the digitally controlled interpolator (24) for the early sample (e), and - a digital non-linear filter (68), for smoothing the control signal (S¿OUT?) of the interpolator (24) for the early sample (e), enabling the update operation of the control signal only when the absolute value (|ξ(n)|) of the error signal at a time instant n is smaller than the absolute value (|ξ(n-1)|) of the same error signal at a time instant n-1.
摘要翻译：一种用于在数字通信接收机中保持输入扩频信号与本地生成代码之间的精确对准的装置，包括： - 延迟线（56），用于存储多个连续样本（E-1，E，M，L，L +1）的入射扩频信号; - 三个数字控制内插器（24,26,28），用于通过内插的早期采样（e），内插中间样本（m）和插值后期样本（1）来确定连续采样之间的内插; - 用于计算误差信号（xi）的两个相关器（30,32）作为从内插的早期（e）和晚期（1）样本计算的符号的能量之间的差; - 用于产生用于控制用于早期采样（e）的数字控制内插器（24）的内插相位的控制信号（S _ OUT <）的电路，以及 - 数字非线性滤波器（68），用于平滑用于早期采样（e）的内插器（24）的控制信号（S _OUT？），使得只有当误差信号的绝对值（|| xi（n）||）时刻n小于在时刻n-1的相同误差信号的绝对值（|| xi（n-1）||）。

7. 发明申请

WO2003017084A3 MULTIPLIER CIRCUIT 审中-公开
公开(公告)号：WO2003017084A3
公开(公告)日：2003-02-27
申请号：PCT/IT2002/000540
申请日：2002-08-14
申请人： TELECOM ITALIA S.P.A. , ETTORRE, Donato , MELIS, Bruno , RUSCITTO, Alfredo
发明人： ETTORRE, Donato , MELIS, Bruno , RUSCITTO, Alfredo
IPC分类号： G06F7/52
摘要： An iterative multiplier circuit (10) comprises modules (15 to 18) that subdivide the respective input signals (Z n , J n ) into a first part (msb(Z n ), msb(J n )) that is the power of 2 immediately lower or equal to the input signal and a second part (Z n -msb(Z n ), J n - msb(J n )) corresponding to the difference between the input signal and the aforesaid first part. A shift module (19) generates a respective output signal through shift operations that implement the multiplication operation for numbers that are powers of 2. The circuit operates according to a general iterative scheme in which at each step three components of the output signal (X.Y) are computed, corresponding to the product of two numbers that are powers of 2 and to two products in which at least one of the factors is a power of 2. The number of steps in the iteration scheme is controllable, thus allowing to vary the accuracy with which the output value (X.Y) is calculated.

8. 发明申请

WO2010075865A1 A METHOD FOR ADAPTIVE DISTRIBUTED MOBILE COMMUNICATIONS, CORRESPONDING SYSTEM AND COMPUTER PROGRAM PRODUCT 审中-公开
标题翻译：自适应分布式移动通信方法，相关系统和计算机程序产品
公开(公告)号：WO2010075865A1
公开(公告)日：2010-07-08
申请号：PCT/EP2008/011139
申请日：2008-12-30
申请人： TELECOM ITALIA S.p.A. , BOLDI, Mauro , GIANOLA, Paolo , MELIS, Bruno , RUSCITTO, Alfredo
发明人： BOLDI, Mauro , GIANOLA, Paolo , MELIS, Bruno , RUSCITTO, Alfredo
IPC分类号： H04B7/02 , H04B7/06
CPC分类号： H04B7/022 , H04B7/026 , H04B7/0617
摘要： A method of arranging exchange of signals between user terminals (UE) in a cellular communication system and at least one base station including a central unit (CU) and a plurality of remote units (RU). The method includes exchanging signals with at least one user terminal (UE) simultaneously via at least two remote units (RU) by applying at the at least two remote units (RU) separate distributing weighting functions to the signals exchanged with the at least one user terminal (UE).
摘要翻译：一种在蜂窝通信系统中的用户终端（UE）和包括中央单元（CU）和多个远程单元（RU）的至少一个基站之间交换信号的方法。该方法包括通过在至少两个远程单元（RU）处应用至少两个远程单元（RU）来与至少一个用户终端（UE）交换信号，所述至少两个远程单元（RU）将加权函数分配到与至少一个用户交换的信号终端（UE）。

9. 发明申请

WO2010025749A1 A METHOD OF PROCESSING RECEIVED SIGNALS, CORRESPONDING RECEIVER AND COMPUTER PROGRAM PRODUCT THEREFOR 审中-公开
标题翻译：处理接收信号的方法，相应接收器及其计算机程序产品
公开(公告)号：WO2010025749A1
公开(公告)日：2010-03-11
申请号：PCT/EP2008/007239
申请日：2008-09-04
申请人： TELECOM ITALIA S.p.A , MELIS, Bruno , CAMPANALE, Rosalba , RUSCITTO, Alfredo , CALDARA, Federica
发明人： MELIS, Bruno , CAMPANALE, Rosalba , RUSCITTO, Alfredo , CALDARA, Federica
IPC分类号： H04B7/08 , H04B1/707
CPC分类号： H04B7/0845 , H04B1/71055 , H04B1/712
摘要： Signals received (14, 16) from channels exposed to multi-path propagation via a plurality of diversity antennas (12) and comprising at least one pilot signal are processed by detecting (18) a set of multi-path components for each of the received signal and computing (22) a set of channel coefficients from multi-path components of the at least one pilot signal in the set of multi-path components, wherein the set of channel coefficients is organized as a channel coefficient vector. From said channel coefficient vector, a set of combining weights (w) is estimated (22) to be applied (24) to the received signals by: - computing (22) a spatial correlation matrix of the channel coefficient vector by neglecting the correlations between multi-path components of the channel coefficient vector having different delays, whereby the correlation matrix is a block diagonal matrix comprising null coefficients other than for non-null sub-matrixes arranged along the diagonal of said correlation matrix, wherein said sub-matrixes have a size equal to the number of diversity antennas; - deriving (22) from the spatial correlation matrix a resulting matrix by calculating the inverse of said sub-matrixes or a scaled version thereof; and - multiplying (22) the resulting matrix and the channel coefficient vector in order to obtain the desired set of combining weights (w).
摘要翻译：通过经由多个分集天线（12）暴露于多路径传播并且包括至少一个导频信号的信道接收到的信号（14,16）通过检测（18）一组多路径分量来处理信号和计算（22）来自所述多路径分量集合中的所述至少一个导频信号的多径分量的一组信道系数，其中所述信道系数集合被组织为信道系数向量。从所述信道系数向量中，通过以下方式来估计（22）对所接收的信号（24）应用组合权重（w）（22）： - 通过忽略信道系数向量之间的相关性来计算（22）空间相关矩阵具有不同延迟的信道系数向量的多路径分量，由此相关矩阵是包括除了对应于所述相关矩阵的对角线排列的非零子矩阵之外的空系数的块对角矩阵，其中所述子矩阵具有大小等于分集天线的数量; - 通过计算所述子矩阵的逆或其缩放版本从所述空间相关矩阵导出所得到的矩阵（22）; 以及 - 乘以（22）所得到的矩阵和信道系数向量，以便获得期望的组合权重集合（w）。

10. 发明申请

WO2008064696A1 SWITCHED BEAM ANTENNA SYSTEM AND METHOD WITH DIGITALLY CONTROLLED WEIGHTED RADIO FREQUENCY COMBINING 审中-公开
标题翻译：开关波束天线系统及其数字控制无线电频率组合方法
公开(公告)号：WO2008064696A1
公开(公告)日：2008-06-05
申请号：PCT/EP2006/011430
申请日：2006-11-29
申请人： TELECOM ITALIA S.P.A. , PIRELLI & C. S.P.A. , D'AMICO, Valeria , FODRINI, Maurizio , MELIS, Bruno , RUSCITTO, Alfredo
发明人： PIRELLI & C. S.P.A. , D'AMICO, Valeria , FODRINI, Maurizio , MELIS, Bruno , RUSCITTO, Alfredo
IPC分类号： H04B7/08
CPC分类号： H04B7/0874 , H04B7/0691 , H04B7/084 , H04B7/086 , H04B7/088
摘要： A wireless communication system, wherein a sub-set of RF signals received from corresponding antenna elements (A111AN) is selected and combined (8) into a single RF signal, the single RF signal being processed and demodulated in a single processing chain (10), comprising a RF phasing network (18) for co-phasing the selected RF signals before combining and a processor (16) for controlling combining (8) and phasing (18) in order to obtain a single RF signal having a radio performance indicator (RPI) which satisfies predetermined conditions.
摘要翻译：一种无线通信系统，其中从对应的天线元件（A111AN）接收的RF信号的子集被选择并组合（8）为单个RF信号，所述单个RF信号在单个处理链（10）中被处理和解调，，包括用于在组合之前使所选择的RF信号相位相位的RF定相网络（18）和用于控制组合（8）和定相（18）的处理器（16），以便获得具有无线电性能指示器的单个RF信号 RPI），其满足预定条件。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式