公开(公告)号：US20180109409A1

公开(公告)日：2018-04-19

申请号：US15695763

申请日：2017-09-05

申请人： FUJITSU LIMITED

发明人： Noboru KOBAYASHI

IPC分类号： H04L27/26 ,  H04W24/10

CPC分类号： H04L27/2646 ,  H04L27/2662 ,  H04L27/2673 ,  H04L27/2689 ,  H04W16/04 ,  H04W24/08 ,  H04W24/10 ,  H04W76/28 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264

摘要： A wireless control device comprising: a communication circuit configured to receive, from a wireless device, a signal wirelessly received by the wireless device; and a control circuit configured to store a time at each reception of a given amount of signal by the communication circuit and perform wireless signal processing of transmitting and receiving a wireless signal through the wireless device, in accordance with a time calculated based on a plurality of stored times.

公开(公告)号：US09264182B2

公开(公告)日：2016-02-16

申请号：US13612911

申请日：2012-09-13

申请人： Mor Miller ,  Amit Steinberg ,  Daniel Wajcer ,  Dan Peleg ,  Guy Cohen

发明人： Mor Miller ,  Amit Steinberg ,  Daniel Wajcer ,  Dan Peleg ,  Guy Cohen

IPC分类号： H03M13/00 ,  H04L1/00 ,  H04L27/26 ,  H04L27/00

CPC分类号： H04L1/005 ,  H04L1/0047 ,  H04L1/0057 ,  H04L27/2655 ,  H04L27/266 ,  H04L27/2665 ,  H04L27/2679 ,  H04L27/2689 ,  H04L2001/0093 ,  H04L2027/0055 ,  H04L2027/0067

摘要： A method includes receiving a signal, which carries data that is encoded with an Error Correction Code (ECC), and correcting the received signal with an adaptive receiver loop. Soft input metrics for the data are computed over the corrected signal. The ECC is decoded using a decoder, which estimates soft output metrics based on the soft input metrics, by operating the decoder in an alternating pattern of external iterations that update one or more of the soft input metrics based on one or more of the soft output metrics, and internal iterations that update the soft output metrics but not the soft input metrics. The adaptive receiver loop is adjusted in a schedule that is defined relative to the pattern of the external and the internal iterations of the decoder.

摘要翻译： 一种方法包括接收携带用纠错码（ECC）编码的数据的信号，并用自适应接收机环路校正接收到的信号。 通过校正信号计算数据的软输入度量。 使用解码器对ECC进行解码，解码器通过以基于软输出中的一个或多个更新一个或多个软输入度量的外部迭代的交替模式操作解码器来基于软输入度量来估计软输出量度 指标和内部迭代更新软输出指标，而不是软输入指标。 在相对于解码器的外部和内部迭代的模式定义的调度中调整自适应接收器环路。

公开(公告)号：US20160013964A1

公开(公告)日：2016-01-14

申请号：US14763632

申请日：2014-03-14

申请人： Mitsubishi Electric Corporation

发明人： Kaoru TSUKAMOTO

IPC分类号： H04L27/26

CPC分类号： H04L27/2689 ,  H04J11/0053 ,  H04L27/2646

摘要： A control station serving as a base-station control device that issues an operation instruction to each of base stations in a wireless communication system in which a plurality of base stations perform transmission at the same time and the same frequency, wherein a frequency offset of a reception signal from a mobile station that is detected by each of the base stations is collected, and a phase rotation amount that is a rotation amount when the base stations rotate a phase of a transmission signal is determined for each of the base stations so that frequency offsets of the respective transmission signals having been subjected to phase rotation by the respective base stations are the same.

摘要翻译： 一种作为基站控制装置的控制站，其在多个基站同时进行发送的同时具有相同频率的无线通信系统中的每个基站发出操作指示，其中， 收集来自移动站的每个基站检测到的接收信号，并且确定每个基站使基站转动发送信号的相位的旋转量的相位旋转量，使得频率 相应基站已进行相位旋转的各个发送信号的偏移量相同。

公开(公告)号：US09131198B2

公开(公告)日：2015-09-08

申请号：US13845405

申请日：2013-03-18

申请人： MStar Semiconductor, Inc.

发明人： Chu-Hsin Chang ,  Kai-Wen Cheng ,  Yi-Ying Liao ,  Tung-Sheng Lin ,  Tai-Lai Tung

IPC分类号： H04L27/06 ,  H04N9/67 ,  H04H40/90 ,  H04L27/26 ,  H04N7/20

CPC分类号： H04N9/67 ,  H04H40/90 ,  H04L27/2657 ,  H04L27/2672 ,  H04L27/2688 ,  H04L27/2689 ,  H04N7/20

摘要： A signal processing apparatus includes an initial detecting module, a mixer, a symbol rate detecting module, a judging module and a correcting module. The initial detecting module determines an initial carrier frequency offset of an input signal according to a spectrum of the input signal. The mixer adjusts the input signal according to the initial carrier frequency offset to generate a frequency-compensated signal. The symbol rate detecting module determines a symbol rate of the input signal. The judging module judges whether the initial carrier frequency offset is correct according to the frequency-compensated signal. When a judgment result of the judging module is negative, the correcting module determines a corrected carrier frequency offset according to the symbol rate and the spectrum.

摘要翻译： 信号处理装置包括初始检测模块，混频器，符号率检测模块，判断模块和校正模块。 初始检测模块根据输入信号的频谱确定输入信号的初始载波频率偏移。 混频器根据初始载波频率偏移调整输入信号，以产生频率补偿信号。 符号率检测模块确定输入信号的符号率。 判断模块根据频率补偿信号判断初始载波频率偏移是否正确。 当判断模块的判断结果为否定时，校正模块根据符号率和频谱确定校正的载波频率偏移。

公开(公告)号：US20150146640A1

公开(公告)日：2015-05-28

申请号：US14408505

申请日：2012-06-27

申请人： Robert Baldemair ,  Jung-Fu Cheng ,  Mattias Frenne ,  Havish Koorapaty ,  Daniel Larsson ,  Stefan Parkvall

发明人： Robert Baldemair ,  Jung-Fu Cheng ,  Mattias Frenne ,  Havish Koorapaty ,  Daniel Larsson ,  Stefan Parkvall

IPC分类号： H04W72/04 ,  H04L5/00 ,  H04L27/26

CPC分类号： H04W72/042 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0051 ,  H04L27/2647 ,  H04L27/2665 ,  H04L27/2666 ,  H04L27/2675 ,  H04L27/2689

摘要： A User Equipment, UE, supporting communication in a multicarrier radio communication system and a method therein for receiving information from a Radio Base Station, RBS, are provided. The method comprises determining 310 a bandwidth by which the UE will receive information, the bandwidth comprising a plurality of sub-carriers. The method also comprises adjusting 320 a bandwidth of the UE to correspond to the determined bandwidth by which the UE will receive information; and fine tuning 330 a local oscillator of the UE such that a centre frequency of a local oscillator does not coincide with a predetermined subcarrier transmitted from the RBS.

摘要翻译： 提供了一种在多载波无线电通信系统中支持通信的用户设备UE，以及用于从无线电基站RBS接收信息的方法。 所述方法包括确定310所述UE将接收信息的带宽，所述带宽包括多个子载波。 该方法还包括调整UE的带宽以对应于UE将接收信息的所确定的带宽; 并精细调整330本地振荡器，使得本地振荡器的中心频率与从RBS发送的预定子载波不一致。

公开(公告)号：US08929501B2

公开(公告)日：2015-01-06

申请号：US13482686

申请日：2012-05-29

申请人： Krishnaraj Varma ,  Tony Huang ,  Sri Bhat

发明人： Krishnaraj Varma ,  Tony Huang ,  Sri Bhat

IPC分类号： H04L7/00

CPC分类号： H04L27/0014 ,  H04L25/03038 ,  H04L27/2656 ,  H04L27/2657 ,  H04L27/2689 ,  H04L2025/03477 ,  H04L2025/03636 ,  H04L2027/0038

摘要： A method and apparatus for processing input data signals transmitted in a continuous mode, or in a burst mode, of signal transmission, such as in a satellite or a computer network communications system. A receiver receives input data signals and a buffer stores the received input data. Processing circuitry generates frame timing synchronization control signals for writing the frames of the input data for storage, generates timing error control signals corresponding to a processing delay for the input data, for synchronizing reading out the stored data from the buffer based on a timing difference between the timing error control signals and the frame timing synchronization control signals to adjust for an arbitrary delay in processing the input data. The processing circuitry can include a tap gradient update circuit for generating a tap gradient corresponding to the read out data, based on equalizer error signals generated by the processing circuitry.

摘要翻译： 一种用于处理以连续模式或突发模式发送的信号传输的输入数据信号的方法和装置，例如在卫星或计算机网络通信系统中。 接收器接收输入数据信号，缓冲器存储所接收的输入数据。 处理电路产生用于写入用于存储的输入数据的帧的帧定时同步控制信号，产生与输入数据的处理延迟相对应的定时误差控制信号，用于基于来自缓冲器的存储数据， 定时误差控制信号和帧定时同步控制信号在处理输入数据时调整任意延迟。 处理电路可以包括用于基于由处理电路产生的均衡器误差信号来产生对应于读出数据的抽头梯度的抽头梯度更新电路。

公开(公告)号：US08848624B2

公开(公告)日：2014-09-30

申请号：US12858357

申请日：2010-08-17

申请人： Peiman Amini ,  Joonsuk Kim ,  Matthew James Fischer ,  Joseph Paul Lauer ,  Vinko Erceg

发明人： Peiman Amini ,  Joonsuk Kim ,  Matthew James Fischer ,  Joseph Paul Lauer ,  Vinko Erceg

IPC分类号： H04W4/00 ,  H04J3/00 ,  H04L1/00 ,  H04L27/26 ,  H04W56/00

CPC分类号： H04L1/0041 ,  H04L1/0045 ,  H04L27/2607 ,  H04L27/2627 ,  H04L27/2649 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2689 ,  H04W56/0035

摘要： Multi-user uplink communications within multiple user, multiple access, and/or MIMO wireless communication systems. Within such communication systems, uplink communications from various receiving wireless communication devices (e.g., STAs) to a transmitting wireless communication device (e.g., AP) may occur in any of a number of various dimensions or combinations thereof including MU-MIMO dimension and frequency dimension (asynchronous FDM or synchronous FDM). In accordance with such uplink communications, various considerations such as time synchronization, frequency synchronization, and/or power control (including wireless communication device grouping). When performing uplink asynchronous FDM signaling, power control as grouping is used. When performing uplink synchronous FDM signaling, time synchronization, frequency synchronization, and power control (such as including wireless communication device grouping) is performed.

摘要翻译： 多用户，多访问和/或MIMO无线通信系统中的多用户上行链路通信。 在这样的通信系统中，从各种接收无线通信设备（例如，STA）到发射无线通信设备（例如，AP）的上行链路通信可以以多种不同维度或其组合中的任何一种进行，包括MU-MIMO尺寸和频率尺寸 （异步FDM或同步FDM）。 根据这种上行链路通信，诸如时间同步，频率同步和/或功率控制（包括无线通信设备分组）的各种考虑。 当执行上行异步FDM信号时，使用功率控制作为分组。 当执行上行同步FDM信令时，执行时间同步，频率同步和功率控制（诸如包括无线通信设备分组）。

公开(公告)号：US08665983B2

公开(公告)日：2014-03-04

申请号：US13602416

申请日：2012-09-04

申请人： Chin-Liang Wang ,  Hung-Chin Wang ,  Mian-Cheng Lin

发明人： Chin-Liang Wang ,  Hung-Chin Wang ,  Mian-Cheng Lin

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04B7/024 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/006 ,  H04L27/2662 ,  H04L27/2671 ,  H04L27/2676 ,  H04L27/2689

摘要： An apparatus for cooperative multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) is provided. The apparatus uses a new carrier assignment scheme (CAS) called generalized interleaved CAS, along with non-data-aided timing synchronization. With the generalized interleaved CAS, random OFDM signals are formed into patterns similar to unequal period synchronization patterns (UPSPs), and a corresponding non-data-aided timing synchronization scheme is set. With the help of majority vote refinement (MVR), the present invention achieves better timing synchronization and enhances the quality of signal demodulation.

摘要翻译： 提供了一种用于协作多输入多输出（MIMO）正交频分复用（OFDM）的装置。 该装置使用称为广义交织CAS的新载波分配方案（CAS）以及非数据辅助定时同步。 利用广义交错CAS，随机OFDM信号形成类似于不等周期同步模式（UPSP）的模式，并且设置相应的非数据辅助定时同步方案。 通过多数投票优化（MVR）的帮助，本发明实现了更好的定时同步，并提高了信号解调的质量。

公开(公告)号：US08488483B2

公开(公告)日：2013-07-16

申请号：US12882348

申请日：2010-09-15

申请人： Jacob Österling ,  Franz Heiser ,  Henrik Olson ,  Fredrik Huss ,  Pontus Adolfsson

发明人： Jacob Österling ,  Franz Heiser ,  Henrik Olson ,  Fredrik Huss ,  Pontus Adolfsson

IPC分类号： H04B7/208

CPC分类号： H04L27/2665 ,  H04L5/0035 ,  H04L25/0204 ,  H04L27/2636 ,  H04L27/2688 ,  H04L27/2689 ,  H04L2025/03414 ,  H04W56/0045

摘要： In cellular radio systems it is a problem to provide service to UE (user equipment) on the cell border. In systems that apply a frequency re-use of one, and OFDM access technology, the uplink direction need be improved. One embodiment of this application relates to a radio base station that is equipped with one or more FFT processor/s in addition to the FFT-processor that is adapted for being adjusted to the timed aligned arrival of signals from UE served by the radio base station. The additional FFT processor/s is adapted for being adjusted to the arrival of one or more signals from UE that are served by other radio base station/s. The radio base station is further adapted to send Fourier processed signal information relating to the UE of the other radio base station/s and thereby assist the other radio base station in signal reception. The application also relates to a method for assisting another radio base station in signal reception, and to a method for receiving assistance from another radio base station in signal reception.

摘要翻译： 在蜂窝无线电系统中，向小区边界上的UE（用户设备）提供服务是一个问题。 在应用频率重用的系统和OFDM接入技术中，需要提高上行方向。 本申请的一个实施例涉及除了FFT处理器之外还配备有一个或多个FFT处理器的无线电基站，该FFT处理器适于被调整为来自由无线电基站服务的UE的信号的定时对准到达 。 附加的FFT处理器适于被调整为来自UE的一个或多个由其他无线电基站服务的信号的到达。 无线基站还适于发送与其他无线基站的UE有关的傅里叶处理信号信息，从而辅助另一无线基站进行信号接收。 本申请还涉及一种用于辅助另一无线电基站进行信号接收的方法，以及一种用于在信号接收中从另一无线电基站接收辅助的方法。

公开(公告)号：US09313073B2

公开(公告)日：2016-04-12

申请号：US14371232

申请日：2012-01-12

申请人： Yuanjun Xu ,  Tao Gu ,  Huaisong Zhu ,  Yanqiang Li ,  Jinsong Yang

发明人： Yuanjun Xu ,  Tao Gu ,  Huaisong Zhu ,  Yanqiang Li ,  Jinsong Yang

IPC分类号： H04L27/26 ,  H04W88/08

CPC分类号： H04L27/2657 ,  H04L27/2621 ,  H04L27/2689 ,  H04W88/08

摘要： The invention discloses an adaptive phase shift method in a multi-carrier system, comprising: generating a group of one or more new phase values for corresponding one or more phase shift carriers, PSCs, based on quantization phase values; calculating and comparing a backward maximum power in an evaluation path with the group of one or more new phase values in one timeslot and a forward maximum power in a working path with current phase values in the timeslot; and adjusting phase of the PSCs based on the group of one or more new phase values if the calculated backward maximum power is less than the calculated forward maximum power. An adaptive phase shift apparatus is also disclosed. With the invention, complexity of the implementation is reduced and a small DPS block resource, low Hardware cost, low power consumption is also achieved.

摘要翻译： 本发明公开了一种多载波系统中的自适应相移方法，包括：基于量化相位值，生成相应的一个或多个相移载波PSC的一个或多个新相位值组; 计算和比较评估路径中的后向最大功率与一个时隙中的一个或多个新相位值组和工作路径中的正向最大功率与时隙中的当前相位值进行比较; 以及如果所计算的后向最大功率小于所计算的正向最大功率，则基于一个或多个新相位值的组来调整所述PSC的相位。 还公开了一种自适应相移装置。 利用本发明，实现的复杂度降低，并且还实现了小的DPS块资源，低硬件成本，低功耗。