公开(公告)号：EP2553834A4

公开(公告)日：2013-09-11

申请号：EP11763130

申请日：2011-02-22

Applicant: ERICSSON TELEFON AB L M

Inventor： SUNDSTROEM LARS ,  HOYMANN CHRISTIAN

IPC: H04B7/155

CPC classification number: H04B7/15542

Abstract: A relay node (34) which wirelessly communicates on a backhaul link over a first interface with a base station node (28) of a radio access technology network and which wirelessly communicates on an access link over a second interface with a wireless terminal (30). The relay node (34) comprises a transceiver (36) and a duplexer section (40). The transceiver (36) comprises a transmitter (42) and a receiver (44). The duplexer section (40) comprises plural transceiver ports (50, 52) and at least one antenna port (48). The relay node (34) is configured to provide a transmit signal from the transmitter (42) in a manner whereby a backhaul link portion of the transmit signal is conveyed through a different transceiver port (50) of the duplexer section than is an access link portion of the transmit signal.

公开(公告)号：WO2011070013A3

公开(公告)日：2012-03-01

申请号：PCT/EP2010069070

申请日：2010-12-07

Applicant: ERICSSON TELEFON AB L M ,  SUNDSTROEM LARS ,  STRANDBERG ROLAND ,  DIN IMAD UD

Inventor： SUNDSTROEM LARS ,  STRANDBERG ROLAND ,  DIN IMAD UD

IPC: H03D7/16

CPC classification number: H03D7/165 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1483 ,  H03D2200/006

Abstract: A mixer arrangement (1) for generating an analog output signal of the mixer arrangement (1) by mixing an analog input signal of the mixer arrangement (1) with a discrete-time mixing signal. The mixer arrangement comprises a plurality of unit elements (10-1,...,10-N)..Each unit element (10-1,...,10-N) is adapted to be in an enabled mode in a first state of an enable signal supplied to the unit element, and in a disabled mode in a second state of the enable signal Furthermore, each unit element is adapted to generate the output signal of the unit element (10-1,...,10-N) such that the output signal of the unit clement (10-1,...,10-N) is based on the analog input signal of the mixer arrangement (1) in the enabled mode but not m the disabled mode. The unit elements (10-1,...,10-N) are connected for generating a common output signal as the sum of the output signals from the unit elements (10-1,...,10-N). Furthermore, the mixer arrangement (1) is adapted to generate the analog output signal of the mixer arrangement (1) based on the common output signal. A control unit (30) is adapted to select the number of unit elements (10-1,...,10-N) to be enabled when the control signal adopts a given value based on a parameter set of one or more control parameters, such as the ratio f s /f M between the sampling frequency f s and the frec?eney f M of the discrete time mixing signal and/or a phase shift of the discrete-time mixing signal. A corresponding method is also disclosed.

Abstract translation: 一种用于通过将混合器装置（1）的模拟输入信号与离散时间混合信号混合来产生混频器装置（1）的模拟输出信号的混频器装置（1）。 混频器装置包括多个单元元件（10-1，...，10-N）。每个单元元件（10-1，...，10-N）适于处于使能模式 提供给单元的使能信号的第一状态，以及在使能信号的第二状态中的禁用模式。此外，每个单位元件适于生成单位元件（10-1，...，...）的输出信号， 10-N），使得单元元件（10-1，...，10-N）的输出信号基于在使能模式中的混频器装置（1）的模拟输入信号，但不是在禁用模式 。 单元元件（10-1，...，10-N）被连接用于产生公共输出信号作为来自单元元件（10-1，...，10-N）的输出信号之和。 此外，混频器装置（1）适于基于公共输出信号产生混频器装置（1）的模拟输出信号。 控制单元（30）适于在控制信号基于一个或多个控制参数的参数集合采用给定值时选择要启动的单元元素（10-1，...，10-N）的数量 ，例如离散时间混合信号的采样频率fs和频率f M之间的比fs / f M和/或离散时间混合信号的相移。 还公开了相应的方法。

公开(公告)号：WO2013043106A3

公开(公告)日：2013-07-11

申请号：PCT/SE2012050972

申请日：2012-09-14

Applicant: ERICSSON TELEFON AB L M ,  SJOELAND HENRIK ,  SUNDSTROEM LARS ,  ANDERSON MARTIN ,  SVENSSON JIM

Inventor： SJOELAND HENRIK ,  SUNDSTROEM LARS ,  ANDERSON MARTIN ,  SVENSSON JIM

IPC: H03D7/14

CPC classification number: H04B1/405 ,  H03D7/1458 ,  H03D7/1466 ,  H03D7/165 ,  H03D7/18 ,  H04L27/12

Abstract: A mixer unit (30) for frequency translating, based on an LO signal, an input signal having one or more input signal components is disclosed. The mixer unit has a signal processing path (50a-d, 60a-d) from each Input terminal (32+, 32-) to each output terminal (34_I+, 34_ I-, 34_Q+,34_Q-) of the mixer unit (30), The LO signal has an associated LO signal component (LO_Ia-d, LO_Qa-d) for each signal processing path. The mixer unit (30) comprises a plurality of mixer switches (70a-N) and a control unit (90). The control unit (90) is adapted to, for each signal processing path (50a-d, 60a-d), dynamically select an associated subset, in the following denoted active switch subset, of the plurality of mixer switches (70a-N) for operation in the signal processing path (50a-d, 60a~d) such that which of the plurality of mixer switches (70a-N) belong to said active switch subset varies in time. At any instant in time, the union of all the active switch subsets is a strict subset, denoted combined active subset, of the plurality of mixer switches (70a-N). The control unit (90) is further adapted to activate only the mixer switches (70a-N) in said combined active subset by, for each mixer switch (70a-N) in the combined active subset, supplying the corresponding LO signal component to the mixer switch. A related radio receiver circuit (10), a related radio communication apparatus (1, 2), and a related method are also disclosed.

Abstract translation: 公开了一种用于基于LO信号对具有一个或多个输入信号分量的输入信号进行频率转换的混频器单元（30）。 混合器单元具有从每个输入端子（32+，32-）到混合器单元（30）的每个输出端子（34_I +，34_I-，34_Q +，34_Q-）的信号处理路径（50a-d，60a- ）。对于每个信号处理路径，LO信号具有关联的LO信号分量（LO_Ia-d，LO_Qa-d）。 混频器单元（30）包括多个混频器开关（70a-N）和控制单元（90）。 对于每个信号处理路径（50a-d，60a-d），控制单元（90）适于动态地选择多个混频器开关（70a-N）中的相关子集（在下文中表示为有源开关子集） 用于在信号处理路径（50a-d，60a-d）中操作，使得多个混频器开关（70a-N）中的哪一个属于所述有源开关子集随时间变化。 在任何时刻，所有有源开关子集的并集是多个混频器开关（70a-N）的被称为组合有效子集的严格子集。 控制单元（90）还适于通过针对组合有效子集中的每个混频器开关（70a-N）将所对应的LO信号分量提供给所述组合有效子集中的混频器开关（70a-N） 调音台开关。 还公开了相关无线电接收器电路（10），相关无线电通信装置（1,2）以及相关方法。

公开(公告)号：WO2013095261A3

公开(公告)日：2013-10-10

申请号：PCT/SE2012051329

申请日：2012-11-29

Applicant: ERICSSON TELEFON AB L M

Inventor： WILHELMSSON LEIF ,  SUNDSTROEM LARS

IPC: H03G3/20

CPC classification number: H03G3/3042 ,  H03F3/19 ,  H03F2200/294 ,  H03F2200/451 ,  H03G3/001 ,  H03G3/3078

Abstract: The present invention relates to a method and device for performing automatic gain control of a received signal. The method comprises the steps of receiving (S101) the signal and amplifying the received signal on the basis of a difference between a power reference value and actual power of the amplified signal. The method further comprises the steps of determining (S102) signal-to-interference ratio of the received signal and controlling (S103) amplification such that the amplified signal attains a target power level by further taking into account the determined signal-to-interference ratio, which target power level is increased as the determined signal-to-interference ratio decreases.

Abstract translation: 本发明涉及一种用于执行接收信号的自动增益控制的方法和设备。 该方法包括以下步骤：接收（S101）信号并基于功率参考值与放大信号的实际功率之间的差来放大接收到的信号。 该方法还包括以下步骤：确定（S102）接收信号的信号干扰比并且控制（S103）放大以使得放大信号通过进一步考虑所确定的信号与干扰比达到目标功率水平 ，该目标功率电平随着所确定的信号与干扰比减小而增加。

公开(公告)号：WO02087074A2

公开(公告)日：2002-10-31

申请号：PCT/EP0204458

申请日：2002-04-23

Applicant: ERICSSON TELEFON AB L M ,  SUNDSTROEM LARS

Inventor： SUNDSTROEM LARS

IPC: H03F1/32 ,  H03F1/00

CPC classification number: H03F1/3247 ,  H03F2200/102

Abstract: An amplifier configuration and method of amplifying a signal are provided for automatic optimization of linearity of power amplifier input/output characteristics. The amplifier configuration utilizes a feedback loop that includes detecting envelopes of signals that are input and output from a power amplifier. The amplifier configuration includes an offset parameter determined in a second feedback loop that adapts to values for optimizing the linearity of the power amplifier output when input signal amplitudes are within a predetermined range of small signal values, thereby producing a substantially reduced distortion and thus linearized output over the entire input signal amplitude range.

Abstract translation: 提供放大器配置和放大信号的方法，用于自动优化功率放大器输入/输出特性的线性度。 放大器配置利用反馈回路，其包括检测从功率放大器输入和输出的信号的包络。 放大器配置包括在第二反馈环路中确定的偏移参数，其适应于当输入信号幅度在小信号值的预定范围内时优化功率放大器输出的线性度的值，从而产生基本上减小的失真并因此产生线性化的输出 在整个输入信号幅度范围内。

公开(公告)号：WO2008077540A3

公开(公告)日：2008-08-28

申请号：PCT/EP2007011142

申请日：2007-12-19

Applicant: ERICSSON TELEFON AB L M ,  SUNDSTROEM LARS ,  PALENIUS TORGNY

Inventor： SUNDSTROEM LARS ,  PALENIUS TORGNY

IPC: H04B1/04

CPC classification number: H04B1/0475 ,  H03G3/3042 ,  H04B1/04

Abstract: A level of power reduction for a transmitter arranged to transmit signals modulated according to one of a number of modulation configurations via radio channels in a digital wireless communications system is estimated. Modulation dependent data comprising a term calculated from a third order product of a signal modulated according to a modulation configuration are provided, and a power reduction estimate for transmission of signals modulated according to said modulation configuration is calculated (307) therefrom. The modulation dependent data are provided (305) to comprise, in addition to the term calculated from a third order product, at least one term calculated from a higher order product. Further, transmitter dependent data are provided (306), and the estimate is calculated from said modulation dependent and transmitter dependent data. Thus a more accurate method of determining a power reduction is achieved, which also allows different operating conditions for the transmitter to be considered.

Abstract translation: 估计用于发射器的功率降低水平，所述发射器被设置为在数字无线通信系统中经由无线电信道发射根据多个调制配置之一调制的信号。 提供包括从根据调制配置调制的信号的三阶乘积计算的项的调制相关数据，并且从中计算用于传输根据所述调制配置调制的信号的功率降低估计（307）。 提供调制依赖数据（305），以除了从三阶乘积计算的项外还包括从更高阶乘积计算的至少一项。 此外，提供发射机相关数据（306），并且从所述调制相关数据和发射机相关数据计算估计。 因此，实现了确定功率减小的更精确的方法，其还允许考虑发射器的不同操作条件。

公开(公告)号：WO03001654A3

公开(公告)日：2003-09-18

申请号：PCT/EP0206788

申请日：2002-06-19

Applicant: ERICSSON TELEFON AB L M ,  SUNDSTROEM LARS

Inventor： SUNDSTROEM LARS

IPC: A61F13/15 ,  H02J7/00

CPC classification number: H02J7/0014 ,  Y10T307/414

Abstract: An electronic device has digital circuitry partitioned into digital circuit blocks, which are connected in series across a power supply, thereby sharing the available supply voltage between them. The device may be a battery-powered wireless communications device, including analog and digital circuitry, wherein the device includes a power supply which provides a supply voltage which is supplied to the analog circuitry, and wherein the digital circuitry is separated into at least two blocks, which are connected in series across the power supply voltage.

Abstract translation: 电子设备具有被划分成数字电路块的数字电路，它们在电源上串联连接，从而在它们之间共享可用的电源电压。 该设备可以是电池供电的无线通信设备，包括模拟和数字电路，其中该设备包括提供提供给模拟电路的电源电压的电源，并且其中数字电路被分成至少两个块 ，它们串联在电源电压上。

公开(公告)号：ES2391368T3

公开(公告)日：2012-11-23

申请号：ES09180084

申请日：2009-12-21

Applicant: ERICSSON TELEFON AB L M

Inventor： WILHELMSSON LEIF ,  PARK CHESTER ,  SUNDSTROEM LARS

IPC: H04L27/26 ,  H04L27/38

Abstract: Método para el mezclado hacia abajo de una señal recibida en un sistema de multiplexación por división defrecuencias ortogonales (OFDM) que contiene pilotos no especulares, en una señal de banda base, que comprende:- determinar la frecuencia de mezclado hacia abajo en base a una frecuencia portadora y a undesplazamiento de la frecuencia portadora, en el que el desplazamiento de la frecuencia portadora sedetermina de tal modo que se obtienen pilotos especulares en la señal de banda base.

公开(公告)号：HK1131478A1

公开(公告)日：2010-01-22

申请号：HK09110979

申请日：2009-11-24

Applicant: ERICSSON TELEFON AB L M

Inventor： SUNDSTROEM LARS ,  PALENIUS TORGNY

IPC: H04B20060101

Abstract: A level of power reduction for a transmitter arranged to transmit signals modulated according to one of a number of modulation configurations via radio channels in a digital wireless communications system is estimated. Modulation dependent data comprising a term calculated from a third order product of a signal modulated according to a modulation configuration are provided, and a power reduction estimate for transmission of signals modulated according to said modulation configuration is calculated (307) therefrom. The modulation dependent data are provided (305) to comprise, in addition to the term calculated from a third order product, at least one term calculated from a higher order product. Further, transmitter dependent data are provided (306), and the estimate is calculated from said modulation dependent and transmitter dependent data. Thus a more accurate method of determining a power reduction is achieved, which also allows different operating conditions for the transmitter to be considered.

公开(公告)号：CA2723854A1

公开(公告)日：2009-11-19

申请号：CA2723854

申请日：2009-05-12

Applicant: ERICSSON TELEFON AB L M

Inventor： LINDOFF BENGT ,  SUNDSTROEM LARS

IPC: H04B1/10

Abstract: A method for a single radio aggregated spectrum receiver of a terminal arranged to operate in a radio network is disclosed. The method comprises receiving information from a network node of the radio network about frequency properties of an aggregated spectrum to be received; determining information about the aggregated spectrum comprising at least one of presence of blocking interferer(s) interspersed with, and pass bands within the aggregated spectrum; and providing filter(s) based on the determined information about the aggregated spectrum such that desired signals are passed and any blocking interferer(s) are attenuated. Corresponding computer program, receiver and terminal are also disclosed.