公开(公告)号：US08848778B2

公开(公告)日：2014-09-30

申请号：US13990455

申请日：2010-12-08

申请人： Zhiheng Guo ,  Hai Wang ,  Ruiqi Zhang

发明人： Zhiheng Guo ,  Hai Wang ,  Ruiqi Zhang

IPC分类号： H03H7/30 ,  H04L25/03 ,  H04L25/02 ,  H04B7/08

CPC分类号： H04L25/03891 ,  H04B7/0848 ,  H04L25/0228 ,  H04L25/03968

摘要： The present invention relates to a method for generating impairment covariances for equalization in a receiver of a wireless communication system, as well as an covariance estimator, a receiver and a wireless communication system associated therewith, where the receiver is equipped with multiple antennas, and an impairment covariance matrix is used to calculate equalization weighting vector for signals transmitted by a transmitter, the method comprising the steps of: calculating a raw impairment covariance estimate between a first antenna and a second antenna of the multiple antennas on each of subcarriers allocated to the transmitter in frequency domain, transforming the raw impairment covariance estimates into time domain, masking the transformed impairment covariance estimates by a triangle window with a width defined by a maximum delay spread, determining a threshold based on the transformed impairment covariance estimates for the subcarriers and thresholding the masked impairment covariance estimates with the determined threshold, and transforming the thresholded impairment covariance estimates into frequency domain to form an impairment covariance matrix for calculating the equalization weighting vector. The impairment covariance estimation according to the present invention provides a performance improvement in equalization.

摘要翻译： 本发明涉及一种用于在无线通信系统的接收机中产生用于均衡的损害协方差的方法，以及与其相关联的协方差估计器，接收机和无线通信系统，其中接收机配备有多个天线，并且 减法协方差矩阵用于计算由发射机发射的信号的均衡加权矢量，该方法包括以下步骤：在分配给发射机的每个子载波上计算多个天线的第一天线与第二天线之间的原始损伤协方差估计 在频域中将原始损害协方差估计转换为时域，通过具有由最大延迟扩展定义的宽度的三角形窗口来掩蔽变换的损害协方差估计，基于子载波的变换的损害协方差估计确定阈值， 掩蔽损伤 确定阈值的协方差估计，并将阈值的损害协方差估计变换为频域以形成用于计算均衡加权向量的损害协方差矩阵。 根据本发明的损伤协方差估计提供了均衡的性能改进。

公开(公告)号：US20130243069A1

公开(公告)日：2013-09-19

申请号：US13990455

申请日：2010-12-08

申请人： Zhiheng Guo ,  Hai Wang ,  Ruiqi Zhang

发明人： Zhiheng Guo ,  Hai Wang ,  Ruiqi Zhang

IPC分类号： H04L25/03

CPC分类号： H04L25/03891 ,  H04B7/0848 ,  H04L25/0228 ,  H04L25/03968

摘要： The present invention relates to a method for generating impairment covariances for equalization in a receiver of a wireless communication system, as well as an covariance estimator, a receiver and a wireless communication system associated therewith, where the receiver is equipped with multiple antennas, and an impairment covariance matrix is used to calculate equalization weighting vector for signals transmitted by a transmitter, the method comprising the steps of: calculating a raw impairment covariance estimate between a first antenna and a second antenna of the multiple antennas on each of subcarriers allocated to the transmitter in frequency domain, transforming the raw impairment covariance estimates into time domain, masking the transformed impairment covariance estimates by a triangle window with a width defined by a maximum delay spread, determining a threshold based on the transformed impairment covariance estimates for the subcarriers and thresholding the masked impairment covariance estimates with the determined threshold, and transforming the thresholded impairment covariance estimates into frequency domain to form an impairment covariance matrix for calculating the equalization weighting vector. The impairment covariance estimation according to the present invention provides a the masked estimates performance improvement in equalization.

摘要翻译： 本发明涉及一种用于在无线通信系统的接收机中产生用于均衡的损害协方差的方法，以及与其相关联的协方差估计器，接收机和无线通信系统，其中接收机配备有多个天线，并且 减法协方差矩阵用于计算由发射机发射的信号的均衡加权矢量，该方法包括以下步骤：在分配给发射机的每个子载波上计算多个天线的第一天线与第二天线之间的原始损伤协方差估计 在频域中将原始损害协方差估计转换为时域，通过具有由最大延迟扩展定义的宽度的三角形窗口来掩蔽变换的损害协方差估计，基于子载波的变换的损害协方差估计确定阈值， 掩蔽损伤 确定阈值的协方差估计，并将阈值的损害协方差估计变换为频域以形成用于计算均衡加权向量的损害协方差矩阵。 根据本发明的损伤协方差估计提供了均衡中的屏蔽估计性能改进。

公开(公告)号：US20110206169A1

公开(公告)日：2011-08-25

申请号：US13031812

申请日：2011-02-22

申请人： Zhiheng Guo ,  Hai Wang ,  Ruiqi Zhang

发明人： Zhiheng Guo ,  Hai Wang ,  Ruiqi Zhang

IPC分类号： H03D1/04

CPC分类号： H04L25/024 ,  H04L25/0218 ,  H04L25/022 ,  H04L27/2647

摘要： A noisy frequency-domain channel estimate enhancer includes an over-sampler configured to transform the noisy frequency-domain channel estimate into a time-domain channel estimate that is virtually over-sampled by an integer factor m. The over-sampler is connected to a de-interleaver configured to divide the time-domain channel estimate into m de-interleaved sub-vectors. The de-interleaver is connected to a suppressor configured to suppress noisy taps from each de-interleaved sub-vectors to form m noise suppressed sub-vectors. The suppressor is connected to a selector configured to select a noise suppressed sub-vector associated with a highest signal-to-noise ratio. The selector is connected to a discrete Fourier transformer configured to transform the selected noise suppressed sub-vector into a noise suppressed preliminary frequency-domain channel estimate. The discrete Fourier transformer is connected to a phase-shifter configured to phase-adjust the taps of the noise suppressed preliminary frequency-domain channel estimate to form an enhanced frequency-domain channel estimate.

摘要翻译： 噪声频域信道估计增强器包括过采样器，其被配置为将噪声频域信道估计转换为实际上被整数因子m过采样的时域信道估计。 过采样器连接到解交织器，其被配置为将时域信道估计分割成m个去交织的子向量。 解交织器连接到抑制器，该抑制器被配置为抑制来自每个去交织的子向量的噪声抽头以形成m个噪声抑制的子向量。 抑制器连接到选择器，其被配置为选择与最高信噪比相关联的噪声抑制子矢量。 选择器连接到配置成将所选择的噪声抑制子矢量变换成噪声抑制的初步频域信道估计的离散付里叶变换器。 离散傅立叶变换器连接到移相器，其被配置为相位调整噪声抑制的初步频域信道估计的抽头，以形成增强的频域信道估计。

公开(公告)号：US20170175502A1

公开(公告)日：2017-06-22

申请号：US15453915

申请日：2017-03-09

申请人： Xihuan ZHAO ,  Ruiqi ZHANG

发明人： Xihuan ZHAO ,  Ruiqi ZHANG

IPC分类号： E21B43/12 ,  F04B53/18 ,  F04B53/14 ,  F04B47/06

CPC分类号： E21B43/121 ,  E21B43/128 ,  F04B17/03 ,  F04B47/06 ,  F04B53/144 ,  F04B53/18

摘要： A submersible reciprocating oil well pump unit, including: a control cabinet, a rotary type submersible motor, a borehole torque reversing device, a borehole reciprocating pump, a submersible cable, a first joint, a second joint, and an oil pipe. The control cabinet is disposed at wellhead and connected to the rotary type submersible motor submerged in a downhole sleeve via the submersible cable. The motor shaft is connected to one end of the screw rod of the screw pair of the borehole torque reversing device via the first joint. One end of the driving rod is connected to a push-pull rod of the borehole reciprocating pump via the second joint. The oil outlet is connected to the oil pipe. The borehole torque reversing device is adapted to drive the control cabinet to commutate automatically according to set loading values.

公开(公告)号：US09319185B2

公开(公告)日：2016-04-19

申请号：US14401705

申请日：2012-05-28

申请人： Hai Wang ,  Peng Li ,  Shaowei Yu ,  Ruiqi Zhang

发明人： Hai Wang ,  Peng Li ,  Shaowei Yu ,  Ruiqi Zhang

IPC分类号： H04W4/00 ,  H04L1/18 ,  H04L1/00 ,  H04L1/16 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W88/08

CPC分类号： H04L1/1887 ,  H04L1/0073 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1829 ,  H04L5/0055 ,  H04W72/0413 ,  H04W72/12 ,  H04W88/08

摘要： Wireless communications may benefit from a method, an arrangement, and a detector for detecting HARQ-ACK information. According to embodiments of the present invention, the method comprises extracting a HARQ-ACK symbol sequence in data transmitted from a user equipment. The method also comprises generating a plurality of candidate HARQ-ACK symbol sequences. The method further comprises calculating a degree of similarity between each of the plurality of candidate HARQ-ACK symbol sequences and the extracted HARQ-ACK symbol sequence to obtain a plurality of degrees of similarity. The method additionally comprises comparing an extremum of the plurality of degrees of similarity with a predetermined threshold. Furthermore, the method comprises determining, based upon the comparing, whether the HARQ-ACK information has been transmitted from the user equipment.

摘要翻译： 无线通信可以受益于用于检测HARQ-ACK信息的方法，装置和检测器。 根据本发明的实施例，该方法包括从用户设备发送的数据中提取HARQ-ACK符号序列。 该方法还包括生成多个候选HARQ-ACK符号序列。 该方法还包括计算多个候选HARQ-ACK符号序列中的每一个与提取的HARQ-ACK符号序列之间的相似度，以获得多个相似度。 该方法还包括将多个相似度的极值与预定阈值进行比较。 此外，该方法包括基于比较来确定是否已经从用户设备发送了HARQ-ACK信息。

公开(公告)号：US20140242934A1

公开(公告)日：2014-08-28

申请号：US14351556

申请日：2011-10-19

申请人： Zhiheng Guo ,  Hai Wang ,  Ruiqi Zhang

发明人： Zhiheng Guo ,  Hai Wang ,  Ruiqi Zhang

IPC分类号： H04B1/16

CPC分类号： H04B1/16 ,  H04B7/0691 ,  H04B7/0857 ,  H04B7/10

摘要： A hybrid combining method in a receiver is provided, and the method includes that wideband combining, e.g. using a maximum ratio combining (MRC) or an interference rejection combing (IRC) process, to combine signals distributed over a first plurality of subcarrier frequencies from antennas in the same polarization direction is performed, resulting in a combined signal for each polarization direction that is distributed over a smaller number of subcarrier frequencies, then a two-port narrowband IRC is done of these wideband combined signals for the two polarization directions, resulting in a diversity combined signal.

摘要翻译： 提供了一种在接收机中的混合组合方法，并且该方法包括宽带组合。 使用最大比合并（MRC）或干扰抑制合成（IRC）处理来组合在相同偏振方向的天线上分布在第一多个子载波频率上的信号，导致用于每个偏振方向的组合信号， 分布在较小数量的子载波频率上，然后对两个极化方向的这些宽带组合信号进行两端口窄带IRC，从而产生分集组合信号。

公开(公告)号：US08165151B2

公开(公告)日：2012-04-24

申请号：US12526467

申请日：2008-02-04

申请人： Shiqiang Suo ,  Ruiqi Zhang ,  Shaohui Sun

发明人： Shiqiang Suo ,  Ruiqi Zhang ,  Shaohui Sun

IPC分类号： H04L12/56 ,  H04J1/16

CPC分类号： H04L5/0037 ,  H04B1/7143 ,  H04L5/0005

摘要： A method for implementing upward frequency hopping transmission is adopted to the communication system with time slotted frame structure, and it comprises: receiving the frequency band and frequency hopping mode allocated by the network side; after implementing the upward transmission on one frequency band allocated in the first predivided time period based on the frequency hopping mode, hopping to the other allocated frequency band to implement upward transmission in the predivided second time period. A system and terminal for implementing upward frequency hopping transmission are also provided. By the invention, the frequency hopping in a transmission time interval of the alternative frame structure in the Long Term Evolution can be realized and the frequency diversity gain can be acquired.

摘要翻译： 采用时隙帧结构的通信系统采用实现上行跳频传输的方法，包括：接收网络侧分配的频段和跳频方式; 在基于跳频模式在第一预分割时段中分配的一个频带上实现向上传输之后，跳跃到另一个分配的频带，以在预分频的第二时间段内实现向上传输。 还提供了一种用于实现向上跳频传输的系统和终端。 通过本发明，可以实现长期演进中替代帧结构的传输时间间隔中的跳频，并且可以获取频率分集增益。

公开(公告)号：US09685702B2

公开(公告)日：2017-06-20

申请号：US13991990

申请日：2010-12-17

申请人： Yang Hu ,  David Astely ,  Zhiheng Guo ,  Muhammad Imadur Rahman ,  Hai Wang ,  Ruiqi Zhang

发明人： Yang Hu ,  David Astely ,  Zhiheng Guo ,  Muhammad Imadur Rahman ,  Hai Wang ,  Ruiqi Zhang

IPC分类号： H01Q3/00 ,  G01S3/16 ,  H01Q3/40 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/10 ,  H04B7/04

CPC分类号： H01Q3/40 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/0469 ,  H04B7/0617 ,  H04B7/0671 ,  H04B7/0686 ,  H04B7/0691 ,  H04B7/10

摘要： The invention discloses a beamforming method for polarized antenna array consisting of a plurality of antenna elements, applied to single layer beamforming or dual layer beamforming, which includes the steps: determining (201) first beamforming weights for phase compensation among the antenna elements within each polarization direction; determining (202) second beamforming weights for phase compensation between equivalent channels of two polarization directions; and calculating (203) hybrid beamforming weights as product of the first beamforming weights and the second beamforming weights. A beamforming apparatus for polarized antenna array is also provided in the invention as well as a radio communication device and a system thereof. With the invention, the single-layer and dual-layer beamforming weights are determined for the cross-polarized antenna array without requiring full channel knowledge or the aid of PMI. Computation complexity is lowered and full power amplifier utilization can be achieved.

公开(公告)号：US08213345B2

公开(公告)日：2012-07-03

申请号：US12532271

申请日：2008-03-21

申请人： Shiqiang Suo ,  Guojun Xiao ,  Ruiqi Zhang

发明人： Shiqiang Suo ,  Guojun Xiao ,  Ruiqi Zhang

IPC分类号： H04J3/00 ,  H04J3/24 ,  H04J3/16 ,  H04W4/00 ,  H04W36/00 ,  H04W72/00

CPC分类号： H04L5/0053 ,  H04L1/0027 ,  H04L5/0037

摘要： A method and an apparatus for an uplink control signaling transmission in a time division duplex OFDMA system are provided for the long term evolution time division duplex (LTE TDD). A signaling processing unit reserves frequency resource for an uplink control channel according to the total amount of the uplink control signaling, and the reserved frequency resource are assigned on both sides of the frequency domain used by uplink time slots, so that the uplink control signaling of a terminal UE is transmitted on the position and the bandwidth of the reserved frequency resource. The transmitted uplink control signaling is transmitted on respective reserved uplink control sub-channels by an intra-subframe hopping way, each terminal UE or a group of UEs corresponding to a frequency-hop sequence. The present invention is simple to realizes and capable of utilizing resource repeatedly and utilizing the time domain and frequency domain diversity simultaneously.

摘要翻译： 提供了用于长时间演进时分双工（LTE TDD）的时分双工OFDMA系统中的上行链路控制信令传输的方法和装置。 信令处理单元根据上行链路控制信令的总量，为上行链路控制信道保留频率资源，并且在上行链路时隙使用的频域的两侧分配保留的频率资源，使得上行链路控制信令 在保留的频率资源的位置和带宽上发送终端UE。 所发送的上行链路控制信令通过子帧间跳频方式在各个保留的上行链路控制子信道上发送，每个终端UE或对应于跳频序列的一组UE。 本发明简单实现并能够重复利用资源，同时利用时域和频域分集。

公开(公告)号：US07780428B2

公开(公告)日：2010-08-24

申请号：US12171360

申请日：2008-07-11

申请人： Xihuan Zhao ,  Ruiqi Zhang

发明人： Xihuan Zhao ,  Ruiqi Zhang

IPC分类号： F01C1/10 ,  F01C5/00 ,  F03C2/00 ,  F04C2/00

CPC分类号： E21B43/128 ,  E21B17/206 ,  F04C2/1073 ,  F04C13/008 ,  F04C15/008

摘要： A fluid-guiding and electric conducting system for a suspended electric submersible PCP comprises a fluid-guiding system and an electric conducting system. The fluid-guiding system comprises an upper connector, a protector, a fluid-guiding sleeve, a driving mechanism, a shaft coupling, a first annular cavity, a second annular cavity, a third annular cavity, a fourth annular cavity, and a fluid outlet. The first annular cavity, the second annular cavity, the third annular cavity, the fourth annular cavity, and the fluid outlet are connected orderly to the well fluid pipe. The electric conducting system comprises a motor lead wire, a center hole of the protector, a fifth annular cavity, and a wire outlet. The fluid-guiding and electric conducting system has the advantages of simple structure, low manufacturing cost, easy assembly and inexpensive maintenance.

摘要翻译： 一种用于悬浮式潜水式PCP的流体引导和导电系统包括流体引导系统和导电系统。 流体引导系统包括上连接器，保护器，流体引导套筒，驱动机构，联轴器，第一环形空腔，第二环形空腔，第三环形空腔，第四环形空腔和流体 出口。 第一环形空腔，第二环形空腔，第三环形空腔，第四环形腔和流体出口有序地连接到井流体管。 导电系统包括电动机引线，保护器的中心孔，第五环形空腔和电线出口。 流体导向和导电系统结构简单，制造成本低，组装方便，维护便宜。