公开(公告)号：EP2978138B1

公开(公告)日：2018-10-17

申请号：EP14290216.2

申请日：2014-07-24

Applicant: NXP B.V.

Inventor： Jamin, Olivier ,  Lefebvre, Fabien ,  Seferian, Gilles

IPC: H04B1/00

CPC classification number: H04B1/1018 ,  H04B1/001 ,  H04B1/0014 ,  H04B1/0017

Abstract: An RF receiver (2) comprising: an RF signal processing unit (10) for receiving an RF signal (4), wherein the RF signal processing unit (10) comprises a dynamically reconfigurable RF filter (14) for filtering the RF signal (4); an analog-todigital converter (30) for converting the filtered RF signal (22) to a digital signal (32); and a digital signal processing unit (40) for processing the digital signal (32) to provide at least one channel (42); wherein the digital signal processing unit (40) is adapted to adjust a respective transfer function of at least one said channel (42) when the RF filter (14) is reconfigured, to at least partially compensate a change in the transfer function of the RF filter (14).

公开(公告)号：EP2621095B1

公开(公告)日：2018-09-19

申请号：EP11827003.2

申请日：2011-09-20

Applicant: Electronics and Telecommunications Research Institute

Inventor： SEO, Seok ,  KIM, Jin Up

IPC: H04B1/10 ,  H03H17/02

CPC classification number: H04B1/0042 ,  H04B1/001 ,  H04B1/0014

Abstract: Provided are a bandpass sampling receiver and a filter design and reconfiguration method thereof. The bandpass sampling receiver includes: an analog-digital converter converting an analog wireless signal into a digital baseband signal; and a complex baseband signal extraction unit generating a first path signal and a second path signal from the digital baseband signal and extracting a complex baseband signal using a relative sample delay difference between the first and second path signals, wherein the first path signal is a down sampled signal after the digital baseband signal is sample-delayed and the second path signal is a down sampled signal without sample-delaying the digital baseband signal.

公开(公告)号：EP3202102A4

公开(公告)日：2018-05-30

申请号：EP15847347

申请日：2015-09-28

Applicant: HUGHES NETWORK SYSTEMS LLC

Inventor： STEBER J MARK ,  SETHI YOGESH ,  KEPLEY WALTER ROBERT ,  HANTZ DAN ,  AMBESKAR NIMESH ,  ZHANG HANHUI

IPC: H04L27/06 ,  H04B7/185

CPC classification number: H04W52/52 ,  H04B1/001 ,  H04B7/185 ,  H04B7/18517 ,  H04B15/00

Abstract: A method and a satellite gateway for minimizing an impact of a noise floor variation in a spot beam satellite system. A demodulator processes digitized signals from multiple channels. Digitized signals are automatically gain controlled by respective automatic gain control components associated with respective channels. Automatic gain controlled digitized signals are downconverted and provided to a burst processor. The burst processor processes each downconverted signal and provides, with respect to each downconverted signal, an automatic gain control estimate, a code rate, and an inroute number to a processor component. The processor component determines an average automatic gain control value for each inroute, provides automatic gain control references to the respective automatic gain control components, and periodically sends noise map information to satellite terminals served by the satellite gateway. In some embodiments, the automatic gain control values are biased according to corresponding code rates.

公开(公告)号：EP2680447B1

公开(公告)日：2017-09-06

申请号：EP13004480.3

申请日：2012-07-10

Applicant: Avago Technologies General IP (Singapore) Pte. Ltd.

Inventor： Rofougaran, Ahmadreza ,  Darabi, Hooman

IPC: H04B1/00

CPC classification number: H04B1/001 ,  H03H19/00 ,  H03H2015/007 ,  H04B1/0028

公开(公告)号：EP3202102A1

公开(公告)日：2017-08-09

申请号：EP15847347.0

申请日：2015-09-28

Applicant: Hughes Network Systems, LLC

Inventor： STEBER, J. Mark ,  SETHI, Yogesh ,  KEPLEY, Walter Robert ,  HANTZ, Dan ,  AMBESKAR, Nimesh ,  ZHANG, Hanhui

IPC: H04L27/06

CPC classification number: H04W52/52 ,  H04B1/001 ,  H04B7/185 ,  H04B7/18517 ,  H04B15/00

Abstract: A method and a satellite gateway for minimizing an impact of a noise floor variation in a spot beam satellite system. A demodulator processes digitized signals from multiple channels. Digitized signals are automatically gain controlled by respective automatic gain control components associated with respective channels. Automatic gain controlled digitized signals are downconverted and provided to a burst processor. The burst processor processes each downconverted signal and provides, with respect to each downconverted signal, an automatic gain control estimate, a code rate, and an inroute number to a processor component. The processor component determines an average automatic gain control value for each inroute, provides automatic gain control references to the respective automatic gain control components, and periodically sends noise map information to satellite terminals served by the satellite gateway. In some embodiments, the automatic gain control values are biased according to corresponding code rates.

Abstract translation: 一种方法和卫星网关，用于最小化点波束卫星系统中本底噪声变化的影响。 解调器处理来自多个通道的数字化信号。 数字化信号由与相应通道相关的各个自动增益控制部件自动增益控制。 自动增益控制的数字信号被下变频并提供给突发处理器。 突发处理器处理每个经下变频的信号，并且相对于每个经下变频的信号，向处理器组件提供自动增益控制估计，码率和入路编号。 处理器部件为每个入路确定平均自动增益控制值，向各个自动增益控制部件提供自动增益控制参考，并周期性地向由卫星网关服务的卫星终端发送噪声地图信息。 在一些实施例中，自动增益控制值根据相应的码率被偏置。

公开(公告)号：EP3155724A1

公开(公告)日：2017-04-19

申请号：EP15721388.5

申请日：2015-04-13

Applicant: Raytheon Company

Inventor： MARR, Harry B. ,  THOMPSON, Daniel

IPC: H04B1/00

CPC classification number: G06F17/142 ,  H03H17/0213 ,  H03H17/0248 ,  H04B1/001

Abstract: A butterfly channelizer includes at least two stages. Each stage includes at least one dual-channel module configured to convert an input time domain signal into a second time domain signal of lower bandwidth. At least one clock is configured to generate a clock signal that drives the at least two stages. A first stage has a first number of dual-channel modules and a second stage following the first stage has a second number of dual-channel modules greater than the first number.

Abstract translation: 蝴蝶渠道化器至少包括两个阶段。 每个级包括至少一个双通道模块，其被配置为将输入时域信号转换为较低带宽的第二时域信号。 至少一个时钟被配置为产生驱动至少两个级的时钟信号。 第一级具有第一数量的双通道模块，第一级之后的第二级具有大于第一级的第二数量的双通道模块。

公开(公告)号：EP2915301A1

公开(公告)日：2015-09-09

申请号：EP13850111.9

申请日：2013-03-15

Applicant: CommScope Technologies LLC

Inventor： KUMMETZ, Thomas ,  PHILLIPS, Fred W. ,  RANSON, Christopher G. ,  HANSON, Van E.

IPC: H04L25/02

CPC classification number: H04W72/0453 ,  H04B1/001 ,  H04L1/00 ,  H04L25/05 ,  H04L27/0002 ,  H04W72/02 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/1263 ,  H04W88/085

Abstract: A telecommunications system is provided that includes a unit for communicating channelized digital baseband signals with remotely located units. The channelized digital baseband signals include call information for wireless communication. The unit includes a channelizer section and a transport section. The channelizer section can extract, per channel, the channelized digital baseband signals using channel filters and digital down-converters. The transport section can format the channelized digital baseband signals for transport together using a transport schedule unit for packetizing and packet scheduling the channelized digital baseband signals. A signal processing subsystem can control a gain of uplink digital baseband signals, independently, that are received from the remotely located units prior to summing the uplink digital baseband signals.

Abstract translation: 提供了一种电信系统，其包括用于以远程定位的单元传送信道化数字基带信号的单元。 信道化数字基带信号包括用于无线通信的呼叫信息。 该单元包括通道化器部分和传输部分。 信道化器部分可以使用信道滤波器和数字下变换器来每通道提取信道化数字基带信号。 传输部分可以使用传输调度单元将通道化数字基带信号格式化以便传输在一起，用于对信道化数字基带信号进行分组和分组调度。 信号处理子系统可以在对上行数字基带信号求和之前独立地控制从远程位置单元接收的上行链路数字基带信号的增益。

公开(公告)号：EP2909940A1

公开(公告)日：2015-08-26

申请号：EP13745961.6

申请日：2013-07-25

Applicant: Raytheon Company

Inventor： HANEVICH, Daniel, A. ,  FULLMER, Douglas, E. ,  SAVAGE, Lee, M. ,  KAUFMAN, Steven, L. ,  WHITE, Jack, E.

IPC: H03M1/12

CPC classification number: H04B1/0057 ,  G01S7/38 ,  H04B1/001

Abstract: An electronic circuit combines two or more individual wideband RF receivers or transceiver band circuits to produce a usable instantaneous bandwidth that is wider than the bandwidth of the individual band circuits. The electronic circuit overcomes the difficulties of combining bands to provide low signal distortion across the band edges and throughout the combined instantaneous bandwidth of the two or more individual band circuits. This electronic circuit utilizes an amplitude, time delay, and phase adjustment procedure that uses associated adjustable circuitry to eliminate misalignments between the two or more individual band circuits.

公开(公告)号：EP2555436A3

公开(公告)日：2013-05-01

申请号：EP12005087.7

申请日：2012-07-10

Applicant: Broadcom Corporation

Inventor： Rofougaran, Ahmadreza ,  Darabi, Hooman

IPC: H04B1/00

CPC classification number: H04B1/001 ,  H03H19/00 ,  H03H2015/007 ,  H04B1/0028

Abstract: A receiver includes a bandpass filter module, a sample and hold module, a discrete time filter module, and a conversion module. The bandpass filter module is operable to filter an inbound wireless signal to produce a filtered inbound wireless signal having a bandwidth. The sample and hold module is operable to sample and hold, at a rate corresponding to a multiple of the bandwidth of the filtered inbound wireless signal, the filtered inbound wireless signal to produce a frequency domain sample pulse train. The discrete time filter module is operable to filter the frequency domain sample pulse train to produce a filtered sample pulse. The conversion module is operable to convert the filtered sample pulse into an inbound baseband signal.

Abstract translation: 接收机包括带通滤波器模块，采样和保持模块，离散时间滤波器模块和转换模块。 带通滤波器模块可操作以对入站无线信号进行滤波以产生具有带宽的滤波的入站无线信号。 采样和保持模块可操作以以与滤波的入站无线信号的带宽的倍数相对应的速率采样和保持经滤波的入站无线信号以产生频域采样脉冲串。 离散时间滤波器模块可操作以对频域采样脉冲串进行滤波以产生滤波后的采样脉冲。 转换模块可操作以将滤波的采样脉冲转换成入站基带信号。

公开(公告)号：EP2477336A1

公开(公告)日：2012-07-18

申请号：EP10815261.2

申请日：2010-08-24

Applicant: Mitsumi Electric Co., Ltd.

Inventor： FUJII, Masanobu ,  KITAGAWA, Makoto ,  YASHIMA, Kiminori

IPC: H04B1/10

CPC classification number: H04B1/001 ,  H04B1/1036 ,  H04B2001/1045 ,  H04B2001/1072

Abstract: A signal processing device includes a mixer 6 to perform frequency conversion of a received high-frequency signal into an intermediate-frequency signal corresponding to signal components of a desired channel, an ADC 8 to convert the intermediate-frequency signal into a digital signal, and a digital demodulation unit 300 to demodulate the digital signal. The demodulation unit 300 includes a band limiting filter 9 to switch a pass band for the digital signal, and a detecting unit 10 to detect a power distribution of the signal components of the desired channel and a power distribution of signal components of a neighboring channel adjacent to the desired channel from the digital signal before being input to the filter 9, wherein the pass band of the filter 9 is switched to a pass band selected based on the power distributions of the desired and neighboring channels detected by the detecting unit 10.

Abstract translation: 信号处理设备包括：混频器6，用于将接收到的高频信号变频为与所需信道的信号分量对应的中频信号; ADC 8，用于将中频信号转换成数字信号;以及 数字解调单元300，用于解调数字信号。 解调单元300包括用于切换数字信号的通带的带限滤波器9和用于检测期望信道的信号分量的功率分布和相邻的相邻信道的信号分量的功率分布的检测单元10 在被输入到滤波器9之前从数字信号切换到期望的信道，其中滤波器9的通带被切换到基于由检测单元10检测到的期望和相邻信道的功率分布而选择的通带。