公开(公告)号：EP2015459A1

公开(公告)日：2009-01-14

申请号：EP07112322.8

申请日：2007-07-12

Applicant: STMicroelectronics N.V.

Inventor： Berens, Friedbert ,  Achkar, Eric

IPC: H04B1/10

CPC classification number: H04B1/1027 ,  H04B1/719

Abstract: Method for detecting the eventual presence of an interferer adapted to interfere with a wireless device, said wireless device being provided with at least one receiving chain including an analog to digital conversion (ADC) stage, said method comprising receiving (30) on said receiving chain an incident signal, delivering (31) to said ADC stage an analog signal from said incident signal, elaborating (33) a binary information from a binary signal (BS) delivered by said ADC stage and representative of the level of said analog signal, analyzing (34) a temporal evolution of said binary information (BINF) and detecting (35) the eventual presence of said interferer from said analysis.

Abstract translation: 用于检测干扰angepasst的最终存在与无线设备干扰的方法，所述无线装置设有至少一个接收链，其中包括到模上所述接收链数转换（ADC）级，所述方法包括：接收（30） 入射信号，提供（31），以从所述入射信号的模拟信号的所述ADC级，阐述（33）从由所述ADC级和代表性的所述模拟信号的电平的递送的二进制信号（BS）的二进制信息，分析的 （34）的所述二进制信息（BINF）和检测（35）。所述干扰来自所述分析的最终存在的时间演进。

公开(公告)号：EP1914907A1

公开(公告)日：2008-04-23

申请号：EP06021630.6

申请日：2006-10-16

Applicant: STMicroelectronics N.V.

Inventor： Berens, Friedbert ,  Rüegg, Andreas

IPC: H04B7/005

CPC classification number: H04W52/242 ,  H04B1/719 ,  H04L27/2601 ,  H04W52/10 ,  H04W52/246

Abstract: Method of managing the operation of a first apparatus belonging to a first communication system and adapted to exchange within said first communication system a multi-carriers modulated signal on several sub-carriers, comprising detecting (10) at said first apparatus (APP1) the eventual presence of an interfering signal emitted from a victim apparatus (APP2) on at least one sub-carrier, determining (11) at said first apparatus the path loss between both apparatuses, determining (12) from said path loss and from an allowed interference level at said victim apparatus a maximum allowed transmit power on said at least one sub-carrier of a multi-carriers modulated signal to be transmitted from said first apparatus, adjusting (13) within said first apparatus the processing of said multi-carriers modulated signal to be transmitted in accordance with said maximum allowed transmit power.

Abstract translation: 管理属于第一通信系统并适于在所述第一通信系统内交换多载波调制信号的几个子载波的第一装置的操作的方法，包括在所述第一装置（APP1）处检测（10）最终的 在至少一个子载波上存在从受害设备（APP2）发射的干扰信号，在所述第一设备处确定（11）两个设备之间的路径损耗，从所述路径损耗和允许的干扰电平确定（12） 在所述受害者设备处，从所述第一设备发送的多载波调制信号的所述至少一个子载波上的最大允许发送功率，在所述第一设备内调整（13）所述多载波调制信号的处理 根据所述最大允许发射功率发射。

公开(公告)号：EP1903702A1

公开(公告)日：2008-03-26

申请号：EP06019591.4

申请日：2006-09-19

Applicant: STMicroelectronics N.V.

Inventor： Wellig, Armin

IPC: H04J3/06 ,  H04L1/00 ,  H04L7/02

CPC classification number: H04B1/7183 ,  H03M13/29 ,  H04J3/0658 ,  H04L7/0066

Abstract: The method comprises:
- sampling (50) the signal,
- elaborating trellis information (TRIF) representative of a trellis including reference paths respectively associated to different reference values of said drift,
- processing (51) the sampled signal along said trellis including selecting at an initial instant at least one sample within a pulse repetition period and for each selected sample going trellis step by trellis step over at least some of said reference paths starting from said selected sample and for each path accumulating at each node of said path the level of the corresponding sample of said signal thereby obtaining a path metric, and
- selecting (52) the path having the greatest path metric, the estimated actual drift value being the reference value associated to said selected path.

Abstract translation: 该方法包括： - 采样（50）的信号， - 阐述网格信息（TRIF）代表的网格包括分别关联到所述漂移的不同参考值的参考路径， - 处理（51）沿所述网格包括在选择的取样信号 在初始时刻的脉冲重复周期内，并且用于通过网格去网格步骤每个所选择的样品的至少一个样品跨过至少一些从所述起始所述参考路径中选择样品和对于每个路径，在所述路径的电平的每个节点累积 所述信号的相应的样品而得到的路径度量，以及 - 选择（52）具有最大路径量度的路径，估计的实际漂移值是相关联的所述所选择的路径的参考值。

公开(公告)号：EP1885057A1

公开(公告)日：2008-02-06

申请号：EP07113684.0

申请日：2007-08-02

Applicant: STMicroelectronics N.V.

Inventor： Van Zanten, François

IPC: H03F1/08

CPC classification number: H03F3/45183 ,  H03F1/086

Abstract: L'invention concerne un circuit amplificateur (30) comprenant une succession d'étages d'amplification (TE, TI, TS) dont au moins un premier étage d'amplification (TE) recevant un premier signal et un deuxième étage d'amplification (TI, TS) en aval du premier étage d'amplification ; un étage (B) à gain unitaire adapté à recevoir le premier signal et à fournir un second signal correspondant à la copie à basse impédance du premier signal ; et un troisième étage d'amplification (TI', TS') dont l'entrée est reliée à la sortie de l'étage à gain unitaire par un condensateur (C1, C1') et dont la sortie est reliée à la sortie du deuxième étage d'amplification.

Abstract translation: 该电路具有接收信号的放大器（TE）和放大器（TE）下游的放大器（TI，TS）。 单位增益放大器（B）接收信号并提供与信号的低阻抗复制有关的另一信号。 放大器（TS）具有分别经由电容器（C1）连接到放大器（B）的输出端子和输出端的输出端和输入端。 跨导放大器（TI`）具有分别经由电容器（C1）和放大器（TI）的入口连接到放大器（B）的输出的输入和输出。 还包括用于放大信号的方法的独立权利要求。

公开(公告)号：EP1878118A1

公开(公告)日：2008-01-16

申请号：EP06753437.0

申请日：2006-04-27

Applicant: STMicroelectronics N.V.

Inventor： WEHN, Norbert ,  KIENLE, Frank ,  BRACK, Torben

IPC: H03M13/11 ,  H03M13/27 ,  H03M13/45

CPC classification number: H03M13/1111 ,  H03M13/1128 ,  H03M13/1165 ,  H03M13/3738

Abstract: This is a method for controlling the decoding of a LDPC encoded codeword composed of several digital data, said LDPC code being represented by a bipartite graph between check nodes (CN1) and variable nodes (VNi). Said method compri ses updating messages exchanged iteratively between variable nodes (VN1) and check nodes (CN1). Said method comprises, at each iteration, calculating for each variable node a first sum ( Λn) of all the incident messages ( λi ) received by said variable node and the corresponding digital data ( λch) and calculating a second sum (VNRnew) of all the absolute values of the first sums ( Λn), and stopping the decoding process if the second sum (VNRnew) is unchanged or decreases within two successive iterations and if a predetermined threshold condition is satisfied.

公开(公告)号：EP1506624B1

公开(公告)日：2007-12-12

申请号：EP03724679.0

申请日：2003-05-19

Applicant: STMicroelectronics N.V.

Inventor： PISONI, Fabio ,  HUG, Roland ,  BONAVENTURA, Marco

IPC: H04B3/23

CPC classification number: H04L25/03159 ,  H04B3/23 ,  H04L27/2647

Abstract: There is disclosed a multi-carrier transceiver system for use in echo-cancellation. The transceiver system is arranged to generate from input data (1) a multi-carrier transmit signal (u) comprising a plurality of multi-carrier data blocks. The transceiver system also has a multi-carrier signal receiver responsive to an input multi-carrier receive signal (Yi) received from a remote signal transmitter. An echo canceller (2000) is arranged to generate from a pair of multi-carrier data blocks (u) a set of frequency-domain echo parameters (W) for use in generating an echo signal, (Y), to generate the echo signal using the frequency-domain echo parameters (W), and to input the echo signal (Y) to the multi-carrier signal receiver for use in generating an echo-cancelled receive signal (Ei) from the input receive signal (Yi) and the echo signal (Y).

公开(公告)号：EP1863191A1

公开(公告)日：2007-12-05

申请号：EP06011970.8

申请日：2006-06-02

Applicant: STMicroelectronics N.V.

Inventor： Achkar, Eric ,  Berens, Friedbert

IPC: H04B7/06 ,  H04B7/08

CPC classification number: H04B1/1027 ,  H04B7/0608 ,  H04B7/0814 ,  H04B7/10 ,  H04L27/2601

Abstract: A device (WAP1) belonging to a wireless communication system and adapted to exchange information with another device of said system within a main band of frequencies, comprises:
N different antennas (ANT1, ANT2) having respectively different antenna characteristics, N being greater than one,
controllable selecting means (SWM) adapted to select one antenna,
detection means (DTM) adapted to detect through said selected antenna the eventual presence of at least one interferer operating within the main band of frequencies, and
control means (CTLM) adapted upon presence of a detected interferer to control said selecting means for selecting another antenna.

Abstract translation: 属于无线通信系统和angepasst的装置（WAP1）到频率的主带内与所述系统的另一设备交换信息，包括：N个分别具有不同的天线特性不同的天线（ANT1，ANT2），N为大于一 的，可控的选择装置（SWM）angepasst以选择一个天线，检测装置（DTM）angepasst以检测通过所述选择的天线的至少一个干扰的频率的主带内操作的最终存在，和控制装置（CTLM）在存在angepasst 检测到的干扰来控制选择所述用于选择另一个天线。

公开(公告)号：EP1841073A1

公开(公告)日：2007-10-03

申请号：EP06006521.6

申请日：2006-03-29

Applicant: STMicroelectronics N.V.

Inventor： Kienle, Franck ,  Wehn, Norbert ,  Brack, Torben

IPC: H03M13/11

CPC classification number: H03M13/3905 ,  H03M13/1165 ,  H03M13/1197 ,  H03M13/3972

Abstract: Method of decoding LDPC codes such as IRA codes used in the DVB-S2 standard, the code graph comprising first variable nodes (systematic), second variable nodes (parity) having a degree two, and check nodes connected to second variable nodes by a zigzag connectivity, the method comprising
a) grouping the check nodes into at least one group, the check nodes of each group being connected by variable nodes called internal variable nodes,
b) performing for each group (GR i ) the following sub-steps b1) and b2):
b1) jointly updating (71) all the check nodes of said group by using an algorithm of the Maximum-A-Posteriori (MAP) type on a two-state trellis,
b2) updating (72,73) all the first variable nodes and all the second variable nodes (PN i-1,i ; PN i,i+1 ) connected to said group except said at least one internal second variable node,
c) iteratively repeating step b)
When using a plurality of groups, a corresponding plurality of trellis windows are LogMAP decoded without training period since connecting parity nodes are updated according the sum-product algorithm.

Abstract translation: 对DVB-S2标准中使用的诸如IRA代码的LDPC码进行解码的方法，包括具有度2的第一可变节点（系统），第二可变节点（奇偶校验）的代码图，以及通过Z字形连接到第二可变节点的校验节点 所述方法包括：a）将所述校验节点分组为至少一个组，每组的校验节点由称为内部变量节点的变量节点连接，b）对于每个组（GR i）执行以下子步骤b1） 和b2）：b1）通过使用两状态网格上的最大后验（MAP）类型的算法来共同更新（71）所述组的所有校验节点，b2）更新（72,73）所有 连接到除所述至少一个内部第二可变节点之外的所述组的第一可变节点和所有第二可变节点（PN i-1，i; PN i，i + 1），c）迭代地重复步骤b）当使用多个 组，相应的多个网格窗口是LogMAP解码而没有训练周期 根据sum-product算法更新连接奇偶校验节点。

公开(公告)号：EP1786109A1

公开(公告)日：2007-05-16

申请号：EP05024884.8

申请日：2005-11-15

Applicant: STMicroelectronics N.V.

Inventor： Berens, Friedbert

IPC: H03M13/05 ,  H03M13/29 ,  H03M13/27 ,  H03M13/11 ,  H03M13/09 ,  H04L1/00

CPC classification number: H04L1/005 ,  H03M13/05 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/2767 ,  H03M13/2789 ,  H03M13/299 ,  H03M13/3905 ,  H03M13/6508 ,  H04L1/0055 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0065 ,  H04L1/0066 ,  H04L1/0071

Abstract: For controlling the decoding latency, larger blocks are non equally segmented into smaller ones. The decoding process can start directly after reception of the first small block. And the latency is defined by the latency of the last small block decoding. Changing the number of iterations during the turbo-code decoding permits also to control the decoding latency.

Abstract translation: 为了控制解码等待时间，较大的块不被均等地分割成更小的块。 解码过程可以在接收到第一个小块之后直接开始。 并且延迟由最后一个小块解码的延迟定义。 在turbo码解码期间改变迭代次数还可以控制解码延迟。

公开(公告)号：EP0929168B1

公开(公告)日：2007-02-14

申请号：EP98440298.2

申请日：1998-12-23

Applicant: STMicroelectronics N.V.

Inventor： Carbone, Stefano ,  Canavese, Angelo

IPC: H04L7/033

CPC classification number: H04L7/0338