公开(公告)号：US08897734B2

公开(公告)日：2014-11-25

申请号：US13664014

申请日：2012-10-30

Applicant: ST-Ericsson SA

Inventor： Janne Olavi Peltonen

IPC: H04B7/00

CPC classification number: H04B17/10 ,  H03H7/40 ,  H04B1/40 ,  H04B17/103 ,  H04B17/12 ,  H04B17/13

Abstract: The invention provides circuitry integrated into a silicon chip that measures aspects of an RF signal on a transmission line in order to provide data that is ultimately used by an antenna tuner circuit to substantially match the impedance of the antenna with that of the transmission line providing the RF frequency to be transmitted.

Abstract translation: 本发明提供集成到硅芯片中的电路，其测量传输线上的RF信号的各方面，以便提供最终由天线调谐器电路使用的数据，以将天线的阻抗与传输线的阻抗基本匹配， RF频率要传输。

公开(公告)号：US20140341174A1

公开(公告)日：2014-11-20

申请号：US13893475

申请日：2013-05-14

Applicant: ST-ERICSSON SA

Inventor： Elias Jonsson

IPC: H04L5/00

CPC classification number: H04L5/0007 ,  H04B17/327 ,  H04L5/0048

Abstract: A Reference Signal Received Power (RSRP) value is produced from a received Orthogonal Frequency Division Multiplexed (OFDM) signal that comprises a plurality of reference symbols located at known sub-carrier frequencies and times within the received OFDM signal. RSRP value production involves, for each hypothesized error state selected from a plurality of different hypothesized error states, ascertaining a corresponding hypothesized RSRP value, and then using the hypothesized RSRP values as a basis for determining a value for use as the produced RSRP value (e.g., by selecting a maximum one of the hypothesized RSRP values as the produced RSRP value). In this technology, each of the hypothesized error states is a hypothesized frequency error paired with a hypothesized timing error and the corresponding hypothesized RSRP value is produced by adjusting one or more measured channel estimates as a function of the hypothesized error state.

Abstract translation: 从接收到的正交频分复用（OFDM）信号产生参考信号接收功率（RSRP）值，所述正交频分复用（OFDM）信号包括位于接收的OFDM信号中的已知子载波频率和时间的多个参考符号。 对于从多个不同的假设错误状态中选出的每个假设错误状态，确定相应的假设的RSRP值，然后使用假定的RSRP值作为确定用作所产生的RSRP值的值的基础（例如， 通过选择假设的RSRP值中的最大值作为产生的RSRP值）。 在该技术中，每个假设的误差状态是与假设的定时误差配对的假设频率误差，并且通过将一个或多个测量的信道估计值调整为假设的误差状态的函数来产生相应的假设的RSRP值。

公开(公告)号：US20140333360A1

公开(公告)日：2014-11-13

申请号：US14369118

申请日：2013-01-22

Applicant: ST-Ericsson SA

Inventor： David Jacquet ,  Philip O'Shea ,  Jacques Prunier

IPC: H03L7/00

CPC classification number: H03L7/00 ,  G06F1/12 ,  H03K5/135 ,  H04L7/0037

Abstract: The present invention relates to a signal synchronization circuit comprising at least one synchronizer (2.1-2.2) comprising a number N of series connected clock delay elements (3.1-3.3), N being equal to or greater than unity and a clock signal generator (1) arranged for generating a modulated clock signal adapted to clock the clock delay element (3.1-3.3) or elements of the at least one synchronizer (2.1-2.2). The clock generator (1) is arranged to receive a clock signal (5) and at least one operating value (6) and to generate the modulated clock signal (1 out) from the clock signal (5) modified based on the operating value (6).

Abstract translation: 信号同步电路技术领域本发明涉及一种信号同步电路，包括至少一个同步器（2.1-2.2），其包括N个串联连接的时钟延迟元件（3.1-3.3），N等于或大于1，以及时钟信号发生器 ），用于产生适于对所述时钟延迟元件（3.1-3.3）或所述至少一个同步器（2.1-2.2）的元件进行时钟的调制时钟信号。 时钟发生器（1）被布置成接收时钟信号（5）和至少一个操作值（6），并且从根据操作值（5）修改的时钟信号（5）产生调制时钟信号（1 out） 6）。

公开(公告)号：US20140328379A1

公开(公告)日：2014-11-06

申请号：US14343082

申请日：2012-10-02

Applicant: ST-Ericsson SA

Inventor： Aravindh Krishnamoorthy

IPC: H04L25/02 ,  H04W52/02

CPC classification number: H04L25/0212 ,  H04L25/0224 ,  H04L25/03006 ,  H04L27/2695 ,  H04W52/0209 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/164

Abstract: The present subject matter discloses a system and a method for processing of channel coefficients of networks. In one embodiment, the method includes ascertaining at least one probable synchronization position of a received sequence and projecting, by oblique projection, at least one given noise basis vector spanning a given noise space onto the null space, so as to determine a channel impulse response at the at least one probable synchronization position. Based on a criterion related to the channel impulse response, a synchronization point for the received sequence is identified from the at least one probable synchronization position. The method also includes determining the noise contribution at the synchronization point and determining the noise coefficient of the at least one given noise basis vector based on the noise contribution so as to recover a signal substantially similar to the originally transmitted signal.

Abstract translation: 本主题公开了一种用于处理网络的信道系数的系统和方法。 在一个实施例中，该方法包括确定接收到的序列的至少一个可能的同步位置，并通过倾斜投影将跨过给定噪声空间的至少一个给定噪声基矢量投影到零空间上，以便确定信道脉冲响应 在所述至少一个可能的同步位置。 基于与信道脉冲响应相关的准则，从所述至少一个可能的同步位置识别所接收序列的同步点。 该方法还包括确定同步点处的噪声贡献，并且基于噪声贡献确定至少一个给定噪声基矢量的噪声系数，以恢复基本上类似于原始发射信号的信号。

公开(公告)号：US20140321526A1

公开(公告)日：2014-10-30

申请号：US14361399

申请日：2012-12-10

Applicant: ST-Ericsson SA

Inventor： Leela Srikar Muppirisetty ,  Aravindh Krishnamoorthy

IPC: H04L27/00

CPC classification number: H04L27/0014 ,  H04L2027/0028 ,  H04L2027/0042

Abstract: The present subject matter discloses a system and a method for estimating a frequency offset in communication devices. In one embodiment, the method of estimating a frequency offset in a communication device comprises generating a reconstructed signal based at least in part on a channel impulse response (CIR) corresponding to a received signal. Further, a normalization matrix is determined for the reconstructed signal. Thereafter, based at least in part on the normalization matrix and the reconstructed signal, the frequency offset is estimated such that the frequency offset corresponds to a maximum normalized-correlation between the reconstructed signal and the received signal.

Abstract translation: 本主题公开了一种用于估计通信设备中的频率偏移的系统和方法。 在一个实施例中，估计通信设备中的频率偏移的方法包括至少部分地基于对应于接收信号的信道脉冲响应（CIR）来生成重构信号。 此外，为重构信号确定归一化矩阵。 此后，至少部分地基于归一化矩阵和重构信号，估计频率偏移，使得频率偏移对应于重构信号和接收信号之间的最大归一化相关。

公开(公告)号：US20140252853A1

公开(公告)日：2014-09-11

申请号：US14351169

申请日：2012-10-15

Applicant: ST-Ericsson SA

Inventor： Laurent Meunier ,  Anders Carlsson ,  Tomas Olsson

IPC: H02J1/00

CPC classification number: H02J1/00 ,  G06F1/263 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3296 ,  H02J2001/008 ,  H03K19/0008 ,  Y02D10/126 ,  Y02D10/172 ,  Y10T307/352 ,  Y10T307/675 ,  Y10T307/696

Abstract: The invention concerns a system for delivering a voltage to at least one power domain (2.11-2. nz) comprising at least one component, each power domain functioning according to at least two operating points, each operating point defining a required supply voltage, the required supply voltages of the operating points of a given power domain being distinct in pairs. The system comprises at least a first and a second power supply units (1.10-1.n0), each supply unit being adapted to deliver a controllable supply voltage and the at least one power domain comprises at least one first power domain (2.1 x; 2.2y; 2.nz), which is arranged to be alternatively connected to the first or to the second power supply unit. The system further comprises a control unit (5) arranged to select, among the first and second power supply units, a current power supply unit to be connected to the first power domain, the current power supply unit being selected based on a current operating point of the first power domain, the control unit being further arranged to control the controllable supply voltage delivered by the current power supply unit to deliver the required voltage level associated with the current operating point of the first power domain.

Abstract translation: 本发明涉及一种用于将电压传递到包括至少一个部件的至少一个功率域（2.11-2.NZ）的系统，每个功率域根据至少两个工作点起作用，每个工作点定义所需的电源电压， 给定功率域的工作点的所需电源电压成对不同。 该系统包括至少第一和第二电源单元（1.10-1.n0），每个供电单元适于传送可控电源电压，并且所述至少一个电源域包括至少一个第一电源域（2.1x; 2.2y; 2.nz），其被布置为交替地连接到第一或第二电源单元。 该系统还包括控制单元（5），其被布置为在第一和第二电源单元之中选择要连接到第一电源域的电流供应单元，基于当前操作点选择当前电源单元 所述控制单元还被布置成控制由所述当前电源单元输送的可控电源电压，以传递与所述第一功率域的当前工作点相关联的所需电压电平。

公开(公告)号：US20140247760A1

公开(公告)日：2014-09-04

申请号：US13782500

申请日：2013-03-01

Applicant: ST-ERICSSON SA

Inventor： Sachin Vitthal Telang ,  Anies Shaik Sulaiman

IPC: H04W52/02

CPC classification number: H04W52/0219 ,  H04W4/06 ,  H04W52/0209 ,  H04W52/0229 ,  Y02D70/1222 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/24

Abstract: A UE side Broadcast/Multicast Control (BMC) protocol layer determines those Cell Broadcast Service (CBS) messages (and their repetitions) which the UE shall read or ignore in a succeeding CBS schedule period, based on the CBS Schedule Message contents (Message Description Type and New Message Bitmap) received in a current CBS schedule period, the CBS messages already stored in the BMC, and the CBS messages to be received. In this manner, the UE may ignore CBS messages it has already received, without knowledge of the CBS message serial numbers, and thus conserve resources such as battery power.

Abstract translation: UE侧广播/组播控制（BMC）协议层基于CBS计划消息内容（消息描述）确定UE在随后的CBS调度周期中将读取或忽略的那些小区广播服务（CBS）消息（及其重复） 类型和新消息位图），已经存储在BMC中的CBS消息和要接收的CBS消息。 以这种方式，UE可以忽略它已经接收的CBS消息，而不知道CBS消息序列号，并且因此节省诸如电池电量的资源。

公开(公告)号：US20140232458A1

公开(公告)日：2014-08-21

申请号：US14056396

申请日：2013-10-17

Applicant: ST-Ericsson SA

Inventor： Patrik Arno ,  Matthieu Thomas

IPC: H03G1/00 ,  H03F3/20 ,  H03F3/189

CPC classification number: H03F3/189 ,  H02M2001/0045 ,  H02M2003/1566 ,  H03F1/0222 ,  H03F1/0227 ,  H03F1/0277 ,  H03F3/24 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/432 ,  H03F2200/555 ,  H03F2203/7221 ,  H03F2203/7236

Abstract: A multi-mode, dynamic, DC-DC converter supplies a dynamically varying voltage, as required, from a battery to an RF power amplifier (PA). In envelope tracking mode, a fast DC-DC converter generates a dynamic voltage that varies based on the amplitude envelope of an RF signal, and regulates the voltage at the PA. A slow DC-DC converter generates a steady voltage and regulates the voltage across a link capacitor. The fast and slow converters are in parallel from the view of the PA, and the link capacitor is between the fast converter and the PA. Because different nodes are regulated, no current sharing is possible between the converters. The link capacitor boosts the dynamic voltage level, allowing a maximum dynamic voltage at the load to exceed the battery voltage. In power level tracking mode, the fast converter is disabled and the link capacitor is configured to be in parallel with the load. The slow converter directly regulates the PA, and the link capacitor is in parallel with (added to) an output capacitor. Multiple wireless network standards may be supported, allowing for the sharing of RF circuits.

Abstract translation: 多模式动态DC-DC转换器根据需要从电池向RF功率放大器（PA）提供动态变化的电压。 在包络跟踪模式中，快速DC-DC转换器产生基于RF信号的幅度包络而变化的动态电压，并且调节PA处的电压。 缓慢的DC-DC转换器产生稳定的电压并且调节链路电容器两端的电压。 快速和慢速转换器与PA兼容，并且链路电容器位于快速转换器和PA之间。 因为不同的节点被调节，转换器之间不能进行电流共享。 链路电容提高动态电压电平，允许负载下的最大动态电压超过电池电压。 在功率电平跟踪模式下，禁用快速转换器，并将链路电容配置为与负载并联。 慢转换器直接调节PA，链路电容与输出电容并联。 可以支持多种无线网络标准，允许共享RF电路。

公开(公告)号：US20140184747A1

公开(公告)日：2014-07-03

申请号：US14138800

申请日：2013-12-23

Applicant: ST-Ericsson SA

Inventor： Stéphane Valente

IPC: H04N13/02

CPC classification number: H04N13/221 ,  H04N13/296

Abstract: A method is disclosed of indicating a suitable pose for a camera for obtaining a stereoscopic image, with the camera comprising an imaging sensor. The method comprises obtaining and storing a first image of a scene using the imaging sensor when the camera is in a first pose; moving the camera to a second pose; and obtaining a second image of the scene when the camera is in the second pose. One or more disparity vectors are determined, each disparity vector being determined between a feature identified within the first image and a corresponding feature identified in the second image. On the basis of the one or more disparity vectors, a determination is made of whether the second image of the scene is suitable for use, together with the first image, as a stereoscopic image pair.

Abstract translation: 公开了一种用于指示相机用于获得立体图像的合适姿态的方法，其中相机包括成像传感器。 该方法包括当相机处于第一姿态时使用成像传感器获取和存储场景的第一图像; 将相机移动到第二个姿势; 以及当所述相机处于所述第二姿势时获得所述场景的第二图像。 确定一个或多个视差矢量，每个视差向量在第一图像中识别的特征和在第二图像中标识的相应特征之间确定。 基于一个或多个视差矢量，确定场景的第二图像是否与第一图像一起适合于立体图像对。

公开(公告)号：US08750364B2

公开(公告)日：2014-06-10

申请号：US13724274

申请日：2012-12-21

Applicant: ST-Ericsson SA

Inventor： Jens Rosendahl ,  Ville Ruuska ,  Mika Salmi

IPC: H03H7/30 ,  H04K1/02

CPC classification number: H04L27/12 ,  H03H17/0294

Abstract: The frequency response of a digital filter, such as a pre-emphasis filter in a signal transmitter having a phase-locked loop, is adjusted using interpolation of the filter coefficients, enabling sets of filter coefficients to be pre-computed or generated as needed in the transmitter. The phase error behavior of the digital filter can be significantly improved.

Abstract translation: 数字滤波器的频率响应，例如具有锁相环的信号发射机中的预加重滤波器的频率响应使用滤波器系数的内插进行调整，使滤波器系数的集合能够根据需要被预先计算或生成 发射机。 可以显着提高数字滤波器的相位误差特性。