公开(公告)号：EP1499014B1

公开(公告)日：2010-03-17

申请号：EP03354064.2

申请日：2003-07-15

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics S.A.

Inventor： Messina, Ettore ,  Piazzese, Nicolo Ivan ,  Lippolis, Giuseppe ,  Salurso, Elena ,  Serratore, Alberto ,  Galluzzo, Agostino

IPC: H03G3/00

CPC classification number: H03G3/3052 ,  H03G3/3036 ,  H03M1/185

公开(公告)号：EP1499014A1

公开(公告)日：2005-01-19

申请号：EP03354064.2

申请日：2003-07-15

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics S.A.

Inventor： Messina, Ettore ,  Piazzese, Nicolo Ivan ,  Lippolis, Giuseppe ,  Salurso, Elena ,  Serratore, Alberto ,  Galluzzo, Agostino

IPC: H03G3/00

CPC classification number: H03G3/3052 ,  H03G3/3036 ,  H03M1/185

Abstract: A method for automatic gain control, e.g. in a receiver for a mobile telecommunication system comprises the operations of:

mixing (13) a received signal (S in ) with an error signal ( P err , P f );
performing an analog-to-digital conversion (14) on the result of said mixing operation, in order to obtain a controlled output signal ( x(t) , S out );
measuring (25) the power ( P meas ) of said controlled output signal (x(t), S out );
subtracting the measured power (P meas ) from a reference power ( P ref ) in order to obtain said error signal ( P err , P f ).

According to the proposed method the operation of measuring the power of the controlled output signal ( x(t) , S out ) comprises:

setting at least a power threshold ( T h ;T h1 , T h2 , T h3 );
measuring (27) a rate of crossings of said power threshold ( T h ; T h1 , T h2 , T h3 ) by said controlled output signal ( x(t) , S out ) in a given observation window;
deriving (29) from said number of crossings the measured power value ( P meas , σ 2=1 ).

The proposed method is particularly suitable for application in receivers of mobile telecommunication systems based on CDMA (Code Division Multiple Access), but also for mobile telecommunication system according to GSM, UMTS, CDMA2000, IS95 o WBCDMA standards and satellite telecommunication systems.

Abstract translation: 一种用于自动增益控制，E.G.方法 在混合（13）的接收信号（SIN）在误差信号（PERR，PF）;：在一种用于移动电信系统中的接收器包括的操作 在执行模拟 - 数字上混合所述外科手术，以获得一个控制输出信号的结果转换（14）（X（t），S OUT）; 测量（25）的功率的所述受控的输出信号（Pmeas）（X（t），S OUT）; 为了减去参考功率（县）所测得的功率（Pmeas）以获得所述误差信号（PERR，PF）。 。根据测量运算受控输出信号的功率（X（t）的，SOUT）包括所提出的方法：设置至少一个功率阈值（Th时，Th1细胞，TH2，TH3）; 测量（27）一（Th时，Th1细胞，TH2，TH3）所述功率阈值的交叉点由所述受控的输出信号速率$（X（t），S\; out）的一个给定的观察窗;\; 来自所述号码的交叉测量功率值的$ （Pmeas，西格玛2\; =\; 1）导出（29）。所提出的方法特别适合于在基于CDMA（码分多址）移动电信系统的接收器应用，该但是对于移动电信系统雅丁到GSM，UMTS，CDMA2000，IS-95öWBCDMA码标准和卫星通信系统\; ，\mathop{\mathrm{image}}$$

公开(公告)号：EP1993225A1

公开(公告)日：2008-11-19

申请号：EP07108234.1

申请日：2007-05-15

Applicant: STMicroelectronics S.r.l.

Inventor： Piazzese, Nicolò Ivan ,  Virlinzi, Francesco Maria ,  Serratore, Alberto

IPC: H04L1/06

CPC classification number: H04L1/0668 ,  H04L1/0631 ,  H04L1/0662

Abstract: A decoder apparatus ( 155, PU, CU ) for decoding a first input set ( Y ) of demodulated data elements obtained by demodulating transmitted data elements received over a transmission channel so as to obtain a corresponding output set ( S ) of decoded data elements is provided. The decoder apparatus includes a first register ( 302 ) operable to receive the demodulated data elements of the first input set and a second register ( 310 ) operable to receive a second input set ( X ) of channel description elements related to the transmission channel. The number of demodulated data elements of the first input set and the number of channel description elements of the second input set is equal to a first number that depends on a selected transmission diversity scheme selected among at least two transmission diversity schemes that can be adopted for the transmission of the transmitted data elements. The decoder apparatus further includes a first selector ( 304(i), 306 ) coupled to the first register and operable to select the demodulated data elements from the first input set, a second selector ( 312(i), 314 ) coupled to the second register and operable to select the channel description elements from the second input set and a combiner ( 308, 318, 320 ) coupled to the first and the second selection circuits and operable to combine the selected demodulated data elements with the selected channel description elements. The decoder apparatus still further includes a controller ( 300 ) coupled to the first and second selectors and to the combiner, that is adapted to generate a plurality of signals defining a control sequence for driving the first and second selectors and the combiner. Said controller is adapted to be configured so as to generate at least two control sequences according to the selected transmission diversity scheme.

Abstract translation: 解码装置（155，PU，CU），用于解码通过解调通过传输信道接收的发送数据元素获得的解调数据元素的第一输入集合（Y），以便获得解码数据元素的对应输出集合（S） 提供。 解码器装置包括可操作以接收第一输入集合的解调数据元素的第一寄存器（302）和可操作以接收与传输信道相关的信道描述元素的第二输入集（X）的第二寄存器（310）。 第一输入集合的解调数据元素的数量和第二输入集合的信道描述元素的数量等于第一数量，其依赖于可以采用的至少两个传输分集方案中选择的所选择的传输分集方案 传输的数据元素。 解码器装置还包括耦合到第一寄存器的第一选择器（304（i），306），用于从第一输入组中选择解调的数据元件，耦合到第二选择器的第二选择器 注册和操作以从第二输入集合选择信道描述元素，以及耦合到第一和第二选择电路的组合器（308,318,320），并且可操作以将所选择的解调数据元素与所选择的信道描述元素组合。 解码器装置还包括耦合到第一和第二选择器和组合器的控制器（300），其适于产生限定用于驱动第一和第二选择器和组合器的控制序列的多个信号。 所述控制器适于被配置为根据所选择的传输分集方案产生至少两个控制序列。

公开(公告)号：EP1562298A8

公开(公告)日：2005-11-09

申请号：EP04425077.7

申请日：2004-02-06

Applicant: STMicroelectronics S.r.l.

Inventor： Rimi, Francesco ,  Serratore, Alberto ,  Avellone, Giuseppe ,  Pappalardo, Francesco ,  Galluzzo, Agostino

IPC: H04B1/707

CPC classification number: H04B1/7083 ,  H04B1/70735 ,  H04B2201/7071

Abstract: In order to perform, according to a received signal (r), a channel-estimation procedure and a cell-search procedure in cellular communication systems, there are executed at least one first operation of correlation of said received signal (r) with secondary synchronization codes (SSC) and a second operation of correlation of said received signal (r) with known midamble codes ( mid, MPL, MPS), whilst said channel-estimation procedure comprises a third operation of correlation of at least part of said received signal (r) with known midamble codes ( mid, MPL, MPS), said first, second, and third correlation operation being executed by sending at least part ( e midamble ) of said received signal (r) to an input of a correlation bank (111, 151; 203, 253; 303). There are envisaged the operations of:

sending, in a first time interval, the received signal (r) to said correlation bank (303) for executing the first operation of correlation of said received signal (r) with secondary synchronization codes (SSC);
sending, in a second time interval, at least part ( e midamble ) of said received signal (r) to said same correlation bank (303) for executing the second operation of correlation of said received signal (r) with known midamble codes ( mid, MPL, MPS);
sending, in a second time interval, the received signal (r) to said same correlation bank (303) for executing the third operation of correlation of at least part ( e midamble ) of said received signal (r) with known midamble codes ( mid, MPL, MPS).

Preferential application is in mobile communication systems based upon standards such as UMTS, CDMA2000, IS95 or WBCDMA.

公开(公告)号：EP1562298A1

公开(公告)日：2005-08-10

申请号：EP04425077.7

申请日：2004-02-06

Applicant: STMicroelectronics S.r.l.

Inventor： Rimi, Francesco ,  Serratore, Alberto ,  Avellone, Giuseppe ,  Pappalardo, Francesco ,  Galluzzo, Agostino

IPC: H04B1/707

CPC classification number: H04B1/7083 ,  H04B1/70735 ,  H04B2201/7071

Abstract: In order to perform, according to a received signal (r), a channel-estimation procedure and a cell-search procedure in cellular communication systems, there are executed at least one first operation of correlation of said received signal (r) with secondary synchronization codes (SSC) and a second operation of correlation of said received signal (r) with known midamble codes ( mid, MPL, MPS), whilst said channel-estimation procedure comprises a third operation of correlation of at least part of said received signal (r) with known midamble codes ( mid, MPL, MPS), said first, second, and third correlation operation being executed by sending at least part ( e midamble ) of said received signal (r) to an input of a correlation bank (111, 151; 203, 253; 303). There are envisaged the operations of:

sending, in a first time interval, the received signal (r) to said correlation bank (303) for executing the first operation of correlation of said received signal (r) with secondary synchronization codes (SSC);
sending, in a second time interval, at least part ( e midamble ) of said received signal (r) to said same correlation bank (303) for executing the second operation of correlation of said received signal (r) with known midamble codes ( mid, MPL, MPS);
sending, in a second time interval, the received signal (r) to said same correlation bank (303) for executing the third operation of correlation of at least part ( e midamble ) of said received signal (r) with known midamble codes ( mid, MPL, MPS).

Preferential application is in mobile communication systems based upon standards such as UMTS, CDMA2000, IS95 or WBCDMA.

Abstract translation: 为了执行，雅丁到的接收信号（R），一个信道估计过程，并在蜂窝通信系统中小区搜索过程中，被执行的至少一个第一操作。所述的相关性的与辅同步接收到的信号（r）的 码（SSC）和所述的相关性的第二次手术以已知的训练序列码的接收信号（R）（中，MPL，MPS），而所述信道估计过程包括所述的至少一部分接收信号的相关的第三外科手术（ R）与已知的中置码码（中旬，MPL，MPS），所述第一，第二和第三相关手术被发送的至少一部分（emidamble）的所述接收信号（R），以在相关银行的输入（111执行时， 151; 203，253; 303）。 有设想的操作：用于执行所述接收到的信号（r）的与辅助同步码（SSC）的相关性的第一手术发送，在第一时间间隔中，接​​收信号（R），以所述相关银行（303）; 说的发送在第二时间间隔的至少一部分（emidamble）接收的信号（R）连接到所述相同的相关行（303），用于执行相关的第二次手术的表示，与已知的中置码码（中间接收信号（R）， MPL，MPS）; 在第二时间间隔发送，用于执行至少部分的相关性。所述的第三次手术（emidamble）所接收的信号（R）连接到所述相同的相关行（303）与已知的中置码码（中间接收信号（R）， MPL，MPS）。 优先应用是在基于标准的移动通信系统：诸如UMTS，CDMA2000，IS95或WBCDMA码。

公开(公告)号：EP1993225B1

公开(公告)日：2012-04-25

申请号：EP07108234.1

申请日：2007-05-15

Applicant: STMicroelectronics S.r.l.

Inventor： Piazzese, Nicolò Ivan ,  Virlinzi, Francesco Maria ,  Serratore, Alberto

IPC: H04L1/06

CPC classification number: H04L1/0668 ,  H04L1/0631 ,  H04L1/0662

公开(公告)号：EP1562298B1

公开(公告)日：2008-12-10

申请号：EP04425077.7

申请日：2004-02-06

Applicant: STMicroelectronics S.r.l.

Inventor： Rimi, Francesco ,  Serratore, Alberto ,  Avellone, Giuseppe ,  Pappalardo, Francesco ,  Galluzzo, Agostino

IPC: H04B1/707

CPC classification number: H04B1/7083 ,  H04B1/70735 ,  H04B2201/7071

公开(公告)号：EP1505757B1

公开(公告)日：2008-07-09

申请号：EP03425535.6

申请日：2003-08-05

Applicant: STMicroelectronics S.r.l.

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

IPC: H04L1/06

CPC classification number: H04L1/0071 ,  H04L1/0618

公开(公告)号：EP1505757A1

公开(公告)日：2005-02-09

申请号：EP03425535.6

申请日：2003-08-05

Applicant: STMicroelectronics S.r.l.

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

IPC: H04L1/06

CPC classification number: H04L1/0071 ,  H04L1/0618

Abstract: Encoded digital symbols (S 1 S 2 S 3 S 4 ) are transmitted via a first pair of antennas (Tx1, Tx2) and at least one second pair of antennas (Tx3, Tx4). The sets of symbols used for the transmission via the second pair of antennas (Tx3, Tx4) are re-ordered temporally (S 3 S 4 S 1 S 2 ) into subsets of symbols with respect to the symbols used for the first pair of antennas (Tx1, Tx2). For the first pair of antennas (Tx1, Tx2) there is used a signal subjected to encoding with a code-division-multiple-access code (CDMA) and subjected to spreading with a spreading code (c 1 ), and, likewise, for the second pair or pairs of antennas (Tx3, Tx4) there are used signals subjected to encoding with respective code-division-multiple-access code (CDMA) and subjected to spreading with a respective spreading code (c 2 ). At least one between the respective code-division-multiple-access code (CDMA) and the respective spreading code (c 2 ) used for the transmission via the second pair of antennas (Tx3, Tx4) is different from the code-division-multiple-access code (CDMA) and from the spreading code (c 1 ) used for the transmission via the first pair of antennas (Tx1, Tx2). 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.

Abstract translation: 编码的数字符号（S1 S2 S3 S4）经由第一对天线（Tx1，Tx2）和至少一个第二对天线（Tx3，Tx4）发送。 用于经由第二对天线（Tx3，Tx4）的传输的符号组在时间上被重新排序（S3 S4 S1 S2）成相对于用于第一对天线（Tx1，Tx2）的符号的符号子集 ）。 对于第一对天线（Tx1，Tx2），使用经码分多址（CDMA）进行编码并经扩频（c1）进行扩频的信号，同样地，对于 第二对或第二对天线（Tx3，Tx4）使用经过编码的各个码分多址（CDMA）信号，并用相应的扩展码（c2）进行扩频。 用于经由第二对天线（Tx3，Tx4）发送的各个码分多址（CDMA）和各扩频码（c2）中的至少一个不同于码分多址 接入码（CDMA）和用于经由第一对天线（Tx1，Tx2）发送的扩展码（c1）。 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。