公开(公告)号：EP3244552A1

公开(公告)日：2017-11-15

申请号：EP15880722.2

申请日：2015-02-04

申请人： Huawei Technologies Co., Ltd.

发明人： CHEN, Zihuan ,  LI, Kun ,  LONG, Hao

IPC分类号： H04B7/26

CPC分类号： H04B7/0408 ,  H04B1/1081 ,  H04B7/086 ,  H04B7/0885 ,  H04B7/0897 ,  H04B7/26 ,  H04W56/005

摘要： A signal processing method and a related device are provided. The signal processing method includes: determining that there are N directions for received signals corresponding to a same signal source; configuring beam directions of an antenna as the N directions; estimating delays of the N received signals received by using the antenna, and separately performing, by using the estimated delays of the N received signals, delay compensation on the N received signals to obtain N received signals obtained after delay compensation, where the N received signals are in a one-to-one correspondence with the N directions, and N is an integer greater than 1; and performing combining processing on the N received signals obtained after delay compensation. The technical solutions in embodiments of the present invention help increase a signal reception gain in a multipath scenario.

摘要翻译： 提供了一种信号处理方法及相关装置。 该信号处理方法包括：确定对于与同一信号源对应的接收信号存在N个方向; 将天线的波束方向配置为N个方向; 估计使用天线接收到的N个接收信号的时延，并分别利用N个接收信号的估计时延对N个接收信号进行时延补偿，得到延时补偿后的N个接收信号，N个接收信号 与N个方向一一对应，N为大于1的整数; 对延迟补偿后得到的N个接收信号进行合并处理。 本发明实施例中的技术方案有助于提高多径场景下的信号接收增益。

公开(公告)号：EP2822193A1

公开(公告)日：2015-01-07

申请号：EP14175239.4

申请日：2014-07-01

申请人： SIAE Microelettronica S.p.A.

发明人： Rossi, Leonardo ,  Salatin, Matteo

IPC分类号： H04B7/08 ,  H04B7/10

CPC分类号： H04B7/084 ,  H04B7/0885 ,  H04B7/10

摘要： Method for reconstructing during reception three baseband source signals (D1,D2,D3) modulated (tx1,tx2,tx3) at high frequency and transmitted isofrequential and co-polar on a short-range radio link comprising three pairs of transmitting/receiving antennas (AT1-AR1;AT2-AR2;AT3-AR3) for each transmission polarization, wherein each of said receiving antennas (AR1,AR2,AR3) is able to receive a respective high-frequency signal (rxl,rx2,rx3) consisting of a primary component, corresponding to the signal transmitted by the respective transmitting antenna, and an interfering component, consisting of a combination of the signals transmitted by the other two transmitting antennas, the method comprising the following steps:
- calculating the complex conjugate signal (rx2*) of the signal (rx2) received by the second antenna (AR2);
- phase-shifting said complex conjugate signal (rx2*) by an amount equal to the first phase shift α, resulting in a phase-shifted complex conjugate signal (rx2*exp(jα));
- subtracting the said complex conjugate signal (rx2*exp(jα)) phase-shifted by α from the signal (rx1) received by the first receiving antenna (AR1) with generation of a reconstructed signal ( tx3 ):
- subtracting the said complex conjugate signal (rx2*exp(jα)) phase-shifted by α from the signal (rx3) received by the third antenna with generation of a reconstructed signal (tx1) ;
- estimating (D1^) the value of the signal transmitted (D1,tx1) by the first transmitting antenna (AT1) on the basis of the reconstructed signal ( tx1 ):
- estimating (D3^) the value of the signal transmitted (D3,tx3) by the third transmitting antenna (AT3) on the basis of the reconstructed signal ( tx3 ):
- subtracting from the signal (rx2) received by the second receiving antenna (AR2) the sum of said estimation signals (D1^,D3^), with reconstruction ( tx2 ) of the signal (D2,tx2) transmitted by the second transmitting antenna (AT2).

摘要翻译： 在高频率和反式mitted isofrequential和共同极性的短距离无线电链路地包括三对发射/接收天线对接收3点的基带源信号（D1，D2，D3）进行调制（X1，TX2，TX3）期间重建方法（ AT1-AR1; AT2-AR2; AT3-AR3）对于每个传输偏振，worin每个所述接收天线（AR1，AR2，AR3）的能够接收由以下组成的一个respectivement高频信号（RXL，RX2，RX3） 主要成分，对应于由respectivement发射天线，和干扰成分，其中包括由其他两个发射天线mitted信号反式的组合的mitted信号反式，该方法包括以下步骤： - （计算复共轭信号RX2 * ）由第二天线（AR2）接收的信号（RX2）的; - 相移所述复共轭信号（RX2 *）通过以量等于所述第一相移±，在相移复数共轭信号所得的（RX2 * EXP（j±））; - 减去所述复共轭信号（RX2 * EXP（j±））相移从信号（R×1）通过±通过第一接收天线（AR1）与生成重构信号（TX3）的接收到的： - 减去说 复共轭信号（RX2 * EXP（j±））相移从由第三天线产生重建的信号（X1）的接收到的信号（RX3）由±; - 估计（D1 ^）的信号反mitted（D1×1）由所述重构信号（X1）的基础上，第一发射天线（AT1）的值： - 估计（D3 ^）的信号反式mitted的值（D3 由第二接收天线（AR2），所述估计信号的（总和D1 ^，D3接收到来自信号（RX2减去） - ：，TX3）由重构信号（TX3）的基础上，所述第三发射天线（AT3） ^），与由第二发射天线（AT2）mitted信号（D2，TX2）的反式的重建（TX2）。

公开(公告)号：EP2761760A1

公开(公告)日：2014-08-06

申请号：EP11871457.5

申请日：2011-08-30

申请人： Intel Corporation

发明人： AVIVI, Rotem ,  GUREVITZ, Assaf ,  WEISMAN, Tzahi

IPC分类号： H04B1/06 ,  H04B7/04

CPC分类号： H04B7/0885 ,  H04B7/0669 ,  H04B7/084 ,  H04L1/06

摘要： Some demonstrative embodiments include devices, systems and/or methods of combining received wireless communication signals. For example, a device may include a radio-frequency (RF) combiner to combine first and second wireless communication RF signals of a wireless communication frame received via first and second respective antennas, into a combined signal; and a base-band phase estimator to estimate a phase difference between the first and the second antennas, and to provide to the RF combiner a feedback corresponding to the phase difference, wherein the radio-frequency combiner is to combine the first and the second RF signals according to the feedback.

公开(公告)号：EP2759108A1

公开(公告)日：2014-07-30

申请号：EP12832937.2

申请日：2012-09-21

申请人： ZTE USA, INC.

发明人： YOM, Dong, Hong ,  SHEN, Ying

IPC分类号： H04L25/08 ,  H04L27/00

CPC分类号： H04B1/123 ,  H04B7/002 ,  H04B7/04 ,  H04B7/0885 ,  H04B7/10 ,  H04L25/08

摘要： An outdoor radio communication system comprises a first radio unit, a second radio unit, and a single cable coupling the first radio unit to the second radio unit. Each radio unit includes a downconverter, a radio processor that is communicatively coupled to the downconverter, and a XPIC module. The cable further includes a first twisted-pair of wires for communicatively coupling the first downconverter to the second XPIC module and a second twisted-pair of wires for communicatively coupling the second downconverter to the first XPIC module. The first XPIC module generates a first reference signal using a signal from the second downconverter to cancel cross-polarization interference in an output signal of the first radio processor. Similarly, the second XPIC module generates a second reference signal using a signal from the first downconverter to cancel cross-polarization interference in an output signal of the second radio processor.

公开(公告)号：EP2675080A1

公开(公告)日：2013-12-18

申请号：EP12189720.1

申请日：2012-10-24

申请人： IMEC ,  VRIJE UNIVERSITEIT BRUSSEL

发明人： Szortyka, Viki ,  Wambacq, Piet

IPC分类号： H04B7/08

CPC分类号： H04B1/18 ,  H04B7/084 ,  H04B7/0885

摘要： The present invention relates to a circuit for providing a signal gain, comprising a first stage comprising a first set of variable gain transconductors arranged for performing phase-shifting of an input signal and providing an intermediate signal, and a second stage comprising a second set of transconductors and a plurality of capacitors receiving the intermediate signal and providing an output signal, wherein the first stage and second stage together form a filter, and wherein the first set of variable gain transconductors and at least one of the transconductors from the second set define the signal gain of the circuit. Further, the first stage may comprise multiple first sets of variable gain transconductors arranged for performing beamforming, each set receiving a different input signal and each having outputs connected in parallel, thereby providing a combined intermediate signal. The present disclosure describes a wireless phased-array receiver comprising the proposed circuit.

摘要翻译： 本发明涉及一种用于提供信号增益的电路，包括：第一级，包括第一组可变增益跨导件，用于执行输入信号的相移并提供中间信号，第二级包括第二组 跨导体和接收中间信号并提供输出信号的多个电容器，其中第一级和第二级一起形成滤波器，并且其中第一组可变增益跨导体和来自第二组的跨导体中的至少一个限定了 电路的信号增益。 此外，第一级可以包括布置成用于执行波束形成的多个可变增益跨导体的第一组，每组都接收不同的输入信号，并且每个具有并联连接的输出，从而提供组合的中间信号。 本公开描述了包括所提出的电路的无线相控阵接收机。

公开(公告)号：EP2529493A2

公开(公告)日：2012-12-05

申请号：EP11705066.6

申请日：2011-01-25

申请人： General Electric Company

发明人： SMITH, Eugene, A., Jr. ,  PELTZ, David, Michael ,  PALANTI, Robert, C.

IPC分类号： H04B7/08 ,  H04B7/06 ,  B61L15/00

CPC分类号： H04B7/0814 ,  B61L15/0027 ,  H04B7/0604 ,  H04B7/082 ,  H04B7/0885

摘要： A communications method for a vehicle consist (10) comprising a lead (14) and a remote (12A/12B/12C) powered vehicle, the lead (14) vehicle comprising first (29A) and second (29B) antennas each associated with a radio, and the remote vehicle (12A/12B/12C) comprising third (29A) and fourth (29B) antennas each associated with a radio. The method comprises transmitting an outbound message from the lead (14) vehicle, receiving the outbound message at the third antenna (29A) and supplying a signal to the associated radio for producing a first received signal, and receiving the outbound message at the fourth antenna (29B) and supplying a signal to the associated radio for producing a second received signal, determining a first and second signal quality metric for the respective first and second received signals, selecting the first or second received signal for processing by the remote vehicle (12A/12B/12C) in response to the first and second signal quality metrics.

公开(公告)号：EP2507915A1

公开(公告)日：2012-10-10

申请号：EP10773286.9

申请日：2010-10-22

申请人： Robert Bosch GmbH

发明人： LEHR, Carsten ,  NYENHUIS, Detlev ,  RISSE, Marcus

IPC分类号： H04B1/00 ,  H04B7/12

CPC分类号： H04B1/0007 ,  H04B1/0053 ,  H04B1/0092 ,  H04B7/028 ,  H04B7/084 ,  H04B7/0885 ,  H04B7/12

摘要： The invention relates to a system for receiving radio transmissions, comprising at least one A/D converter (12) for digitizing (22) the entire desired frequency band (20), such as FM band, received via at least one antenna (10). According to the invention, there are also means for demodulating (23) at least two signals from different transmission frequencies of a radio transmitter.

公开(公告)号：EP1729431A3

公开(公告)日：2009-05-20

申请号：EP06251022.7

申请日：2006-02-27

申请人： FUJITSU LIMITED

发明人： Nagata, Hidenari, c/oFujitsu Limited ,  Ohwada, Hideo, c/o Fujitsu Limited

IPC分类号： H04B7/08 ,  H04L27/26

CPC分类号： H04B7/0817 ,  H04B7/0837 ,  H04B7/084 ,  H04B7/0871 ,  H04B7/0885 ,  H04H20/26 ,  H04H40/18 ,  H04L27/2647

摘要： By including plural receiving branches which are independently controllable for use in diversity reception or plural-channel simultaneous reception, a receiving device can be operated both as a diversity receiving device and as a plural-channel simultaneous receiving device.

公开(公告)号：EP1468506B1

公开(公告)日：2008-12-17

申请号：EP03705817.9

申请日：2003-01-16

申请人： Qualcomm, Incorporated

发明人： CHEN, Tao ,  WILLENEGGER, Serge ,  TIEDEMANN, Edward G., Jr. ,  WANG, Jun

IPC分类号： H04B7/02 ,  H04B7/08 ,  H04L1/18

CPC分类号： H04B7/022 ,  H04B7/0882 ,  H04B7/0885 ,  H04B7/0888

摘要： Techniques for selectively combining multiple transmissions to recover a message comprised of multiple frames. Initially, each transmission is separately processed to recover the message. If the message cannot be recovered error-free from any single transmission, then portions of multiple transmissions are selectively combined to recover the message. Erased frames in a message recovered from a primary transmission e.g., the one with the best pilot Ec/I0 and good frames from other transmissions are determined e.g., based on the frame-level CRC. One or more combined messages are then formed, each including a different set of good frames substituting for the erased frames. If a good frame cannot be derived from any single transmission for a given erased frame, then symbols from multiple transmissions may be combined to derive the good frame. Each combined message is checked e.g., based on the message-level CRC to determine whether it is good or erased.

公开(公告)号：EP1215814A3

公开(公告)日：2005-02-09

申请号：EP01308954.5

申请日：2001-10-22

申请人： SONY CORPORATION

发明人： Sanada, Yukitoshi, c/o Sony Corporation ,  Abe, Masayoshi, c/o Sony Corporation ,  Kohno, Ryuji, c/o Sony Corporation

IPC分类号： H03D3/00

CPC分类号： H04B7/084 ,  H04B7/0885

摘要： A receiver includes a phased array antenna and a demodulator. The phased array antenna includes first and second antenna elements and a phase shifter for shifting the phase of a signal received by the first antenna element by a predetermined amount. The demodulator includes a first junction circuit which receives a local signal and a signal output from the phase shifter and which generates a plurality of signals having a phase difference; a second junction circuit which receives a local signal and a signal output from the second antenna element and which generates a plurality of signals having a phase difference; signal combiners for combining corresponding signals output from the two junction circuits; power detectors for detecting the signal levels of the output signals of the signal combiners; and a converter for converting the outputs signals of the power detectors so as to obtain IQ signals. Thus the receiver has the advantage that information of the amplitudes of the signals received by the antenna elements is not lost and the directivity of the phased array antenna can be easily controlled. Furthermore, the receiver is capable of performing wide-band and low-distortion demodulation.

摘要翻译： 接收器包括相控阵天线和解调器。 相控阵天线包括第一和第二天线元件以及用于将由第一天线元件接收的信号的相位移位预定量的移相器。 解调器包括第一结电路，其接收本地信号和从移相器输出的信号，并产生具有相位差的多个信号; 第二结电路，其接收从所述第二天线元件输出的本地信号和信号，并且生成具有相位差的多个信号; 信号组合器，用于组合从两个结电路输出的相应信号; 功率检测器，用于检测信号组合器的输出信号的信号电平; 以及转换器，用于转换功率检测器的输出信号以获得IQ信号。 因此接收机的优点在于，天线元件接收的信号的幅度信息不会丢失，并且可以容易地控制相控阵天线的方向性。 此外，接收器能够执行宽带和低失真解调。