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1. 发明申请

WO2009080057A1 METHOD AND SYSTEM FOR SWITCHED BEAM ANTENNA COMMUNICATIONS 审中-公开
标题翻译：用于开关光束天线通信的方法和系统
公开(公告)号：WO2009080057A1
公开(公告)日：2009-07-02
申请号：PCT/EP2007/011140
申请日：2007-12-19
申请人： TELECOM ITALIA S.P.A. , PIRELLI & C. S.P.A. , BOLLEA, Loris , D'AMICO, Valeria , FODRINI, Maurizio , GALLO, Paolo , MELIS, Bruno , RUSCITTO, Alfredo
发明人： BOLLEA, Loris , D'AMICO, Valeria , FODRINI, Maurizio , GALLO, Paolo , MELIS, Bruno , RUSCITTO, Alfredo
IPC分类号： H01Q3/36 , H01Q21/20
CPC分类号： H01Q3/2605 , H01Q1/2258
摘要： A system for processing an RF signal received via a plurality of antenna elements includes a connection arrangement (6) for selecting a sub-set of a given number of RF signals ( r i , r j ) received from the antenna elements as well as a processing arrangement (8) for combining the received RF signals of the selected subset ( r i , r j ) into a single RF signal for demodulation. The system includes a RF phasing circuit (18) for producing selective combinations of the received RF signals ( r i , r j ) by applying relative RF phase shift weights to the RF signals ( r i , r j ) that are combined; each combination includes RF signals received from a number of adjacent antenna elements equal to the number of the RF signals in the sub-set to be selected. A radio performance estimator (14) generates for each said selective combination of RF signals at least one non-RF radio performance indicator (RPI) representative of the quality of the RF signals in the combination. A decision block (16) identifies the sub-set of received RF signals ( r i , r j ) to be selected as a function of the one radio performance indicator (RPI) generated for the selective combinations of said received RF signals ( r i , r j ). This arrangement facilitates the selection of the signals/antennas to be used for reception e.g. in a WLAN device by avoiding that the selection process may involve all the possible combinations.
摘要翻译：用于处理经由多个天线元件接收的RF信号的系统包括用于选择从天线元件接收的给定数量的RF信号（ri，rj）的子集的连接装置（6）以及处理装置（8），用于将所选择的子集（ri，rj）的接收的RF信号组合成单个RF信号以进行解调。该系统包括RF相位电路（18），用于通过对组合的RF信号（r i，r j）施加相对RF相移权重来产生所接收的RF信号（r i，r j）的选择性组合; 每个组合包括从等于要选择的子集中的RF信号的数量的多个相邻天线元件接收的RF信号。无线电性能估计器（14）针对RF信号的每个所述选择性组合生成表示组合中的RF信号的质量的至少一个非RF无线电性能指示符（RPI）。决定块（16）识别作为根据所接收的RF信号（ri，rj）的选择性组合产生的一个无线电性能指示符（RPI）的函数来选择的接收RF信号（ri，rj）的子集，。这种布置有助于选择要用于接收的信号/天线，例如。在WLAN设备中通过避免选择过程可能涉及所有可能的组合。

2. 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。

3. 发明申请

WO2005091517A1 METHOD AND SYSTEM FOR CHANNEL ESTIMATION, RELATED RECEIVER AND COMPUTER PROGRAM PRODUCT 审中-公开
标题翻译：信道估计方法与系统，相关接收器和计算机程序产品
公开(公告)号：WO2005091517A1
公开(公告)日：2005-09-29
申请号：PCT/EP2004/003114
申请日：2004-03-24
申请人： TELECOM ITALIA S.P.A. , D'AMICO, Valeria , MELIS, Bruno , RUSCITTO, Alfredo
发明人： D'AMICO, Valeria , MELIS, Bruno , RUSCITTO, Alfredo
IPC分类号： H04B1/707
CPC分类号： H04L25/0232 , H04B7/0615 , H04B7/0617 , H04B7/0619 , H04B7/0857 , H04L25/0238 , H04W52/42
摘要： A system for performing channel estimation based on a received signal including both known (KS) and unknown (UKS) transmitted symbols, includes detector circuitry (CK1, ..., CKP,L; CM, DU) for detecting the unknown symbols (UKS) by assigning estimated values (EAS) to the unknown symbols, and channel estimator circuitry (M) for performing channel estimation by exploiting both the known symbols (KS) and the estimated values (EAS) assigned to the unknown symbols (UKS). The system has associated multiple receiving antennas. The system is preferably included in a CDMA receiver and the received signal includes known pilot bits (KS) and additional symbols, such as transmit power-control (TPC) commands, feedback information for transmitting antenna diversity, and a transport-format combination indicator (TFCI) that comprise the unknown symbols (UKS).
摘要翻译：用于基于包括已知（KS）和未知（UKS）发射符号的接收信号执行信道估计的系统包括用于检测未知符号的检测器电路（CK1，...，CKP，L; CM，DU））通过将估计值（EAS）分配给未知符号，以及通过利用分配给未知符号（UKS）的已知符号（KS）和估计值（EAS）来执行信道估计的信道估计器电路（M）。该系统已经连接了多个接收天线。该系统优选地包括在CDMA接收机中，并且所接收的信号包括已知导频位（KS）和附加符号，例如发射功率控制（TPC）命令，用于发射天线分集的反馈信息和传输格式组合指示符 TFCI），其包括未知符号（UKS）。

4. 发明申请

WO2005041509A1 CHANNEL ESTIMATION USING PILOT SYMBOLS 审中-公开
标题翻译：使用引导符号进行信道估计
公开(公告)号：WO2005041509A1
公开(公告)日：2005-05-06
申请号：PCT/EP2003/010815
申请日：2003-09-30
申请人： TELECOM ITALIA S.P.A. , D'AMICO, Valeria , GRAZIANO, Maurizio , MELIS, Bruno , RUSCITTO, Alfredo
发明人： D'AMICO, Valeria , GRAZIANO, Maurizio , MELIS, Bruno , RUSCITTO, Alfredo
IPC分类号： H04L25/02
CPC分类号： H04L25/0204 , H04L25/0206 , H04L25/0232 , H04L25/0236
摘要： A system for estimating the transfer function of a transmission channel such as the downlink channel in a CDMA system over which a pilot signal (P-CPICH) and a data signal (DPCH) are transmitted. The system includes: - at least one estimator (21, 22, 27; 24, 23, 25) for producing first and second channel estimates from the pilot signal and the data signals, and - a combination node (26) for combining the first and second channel estimates to obtain final combined channel estimates. The system includes an interpolator module (25) adapted for interpolating the second channel estimates over a basic estimation reference time (T) to produce equal numbers of channel estimates over the basic estimation reference time (T) derived from the data signal and the pilot signal respectively, and, possibly - rate adaptation modules (23, 27) adapted for mapping the channel estimates on the basic estimation reference time (T). The combination node is a summation node (26) producing the final combined channel estimates as a sum (26) of the first channel estimates and the interpolated second channel estimates.
摘要翻译：一种用于估计发送导频信号（P-CPICH）和数据信号（DPCH）的CDMA系统中诸如下行链路信道之类的传输信道的传递函数的系统。该系统包括： - 用于从导频信号和数据信号产生第一和第二信道估计的至少一个估计器（21,22,27; 24,23,25），和 - 组合节点（26），用于将第一和第二渠道估计，以获得最终的组合渠道估计。该系统包括适于在基本估计基准时间（T）上内插第二信道估计以在从数据信号和导频信号导出的基本估计参考时间（T）上产生相等数目的信道估计的内插器模块（25）以及可能的速率自适应模块（23,27），其适于在基本估计参考时间（T）上映射信道估计。组合节点是产生作为第一信道估计和插值的第二信道估计的和（26）的最终组合信道估计的求和节点（26）。

5. 发明申请

WO2009080058A1 METHOD AND SYSTEMS FOR RECEIVING PLURAL INFORMATIONS FLOWS IN A MIMO SYSTEM 审中-公开
标题翻译：用于在MIMO系统中接收多个信息流的方法和系统
公开(公告)号：WO2009080058A1
公开(公告)日：2009-07-02
申请号：PCT/EP2007/011141
申请日：2007-12-19
申请人： TELECOM ITALIA S.P.A. , PIRELLI & C. S.P.A. , RUSCITTO, Alfredo , MELIS, Bruno , BOLLEA, Loris , D'AMICO, Valeria , FODRINI, Maurizio
发明人： RUSCITTO, Alfredo , MELIS, Bruno , BOLLEA, Loris , D'AMICO, Valeria , FODRINI, Maurizio
IPC分类号： H04B7/04
CPC分类号： H04B7/0874 , H04B7/0413 , H04B7/0697 , H04B7/084
摘要： In a communication system, such as a Multiple Input Multiple Output (MIMO) system operating in a spatial multiplexing (SM) mode, for use e.g. in a WLAN or HSDPA device, a plurality of information flows are received via a set of receive antennas (A 1 ,..., A nR ) by: deriving from at least some, and possibly all of the receive antennas (A 1 ,..., A nR ) respective RF signals ( r 1 ,..., r nR ), and - producing from the RF signals thus derived a plurality of receive signals, each receive signal to be demodulated (20a, 20b) to recover one of the information flows transmitted. The receive signals are produced as combinations (14, 14a, 14b) of the RF signals (r 1 ,...,r nR ) having applied (12, 124a, 124b) thereto relative RF phase shift weights (W).
摘要翻译：在诸如以空间复用（SM）模式操作的多输入多输出（MIMO）系统的通信系统中，用于例如在WLAN或HSDPA设备中，经由一组接收天线（A1，...，AnR）接收多个信息流，方法是：从至少一些接收天线（以及可能的全部）接收天线，AnR）各自的RF信号（r 1，...，r nR），以及 - 从RF信号产生，从而导出多个接收信号，每个接收要被解调的信号（20a，20b）以恢复信息中的一个流量传输。接收信号作为已经向其施加（12,124a，124b）的相对RF相移权重（W）的RF信号（r1，...，rnR）的组合（14,14a，14b）产生。

6. 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。

7. 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）||）。

8. 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.

9. 发明申请

WO2007124761A1 FREQUENCY DOMAIN CHANNEL ESTIMATION IN A SINGLE CARRIER FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM 审中-公开
标题翻译：单载波频分多址接入系统中的频域信道估计
公开(公告)号：WO2007124761A1
公开(公告)日：2007-11-08
申请号：PCT/EP2006/003916
申请日：2006-04-27
申请人： TELECOM ITALIA S.P.A. , MELIS, Bruno , RUSCITTO, Alfredo , DI PAOLA, Pietro
发明人： MELIS, Bruno , RUSCITTO, Alfredo , DI PAOLA, Pietro
IPC分类号： H04L25/02 , H04L27/26
CPC分类号： H04L25/022 , H04L25/0206 , H04L25/0226 , H04L25/0228 , H04L25/0258 , H04L25/03159 , H04L25/03292 , H04L25/03305 , H04L27/2613 , H04L27/262 , H04L2025/03414
摘要： A channel estimator (202) for use in a receiver node receiving signals (x(1), x(2),.... x(Nu)) from a plurality of user terminals wherein each user terminal is allotted a respective set of transmission subcarriers and respective test signal sequences (rp) for transmission over the channel to be estimated. The channel estimator (202) has stored therein (400) information as to the respective sets of transmission subcarriers allotted to the user terminals (TUi, TU2,..., TIW for transmission as well as the discrete spectra of the respective test signal sequences allotted to the user terminals. Upon receiving from a plurality of user terminals signals including the respective test signal sequences (rp) transmitted over the channel by using the respective sets of transmission subcarriers allotted thereto, the estimator generates (208) the discrete spectrum of the combined test signal received and performs channel estimation as a function of the discrete spectrum of the combined test signal and the discrete spectra of the test signal sequences allotted to the user terminals (TU1, TU2 TUNu). A frequency domain channel estimation is performed for a Single Carrier Frequency Division Multiple Access (SC-FDMA) system.
摘要翻译：一种在多个用户终端中接收信号（x（1），x（2），... x（Nu））的接收机节点中使用的信道估计器（202），其中每个用户终端被分配相应的一组传输子载波和各个测试信号序列（rp），用于在待估计的信道上进行传输。信道估计器（202）已经存储了关于分配给用户终端（TUi，TU2，...，TIW以用于传输）的各个发送子载波的各组的信息（400）以及各个测试信号序列的离散频谱分配给用户终端，当从多个用户终端接收包括通过使用分配给其的各组发送子载波通过信道发送的各个测试信号序列（rp）的信号时，估计器产生（208）离散频谱组合测试信号被接收并且根据分配给用户终端（TU1，TU2 TUNu）的测试信号序列的离散频谱和组合测试信号的离散频谱的函数进行信道估计。对于一个频域信道估计单载波频分多址（SC-FDMA）系统。

10. 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。

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