公开(公告)号：US08600294B2

公开(公告)日：2013-12-03

申请号：US12944484

申请日：2010-11-11

Applicant: Zheng Yi ,  Gengshi Wu

Inventor： Zheng Yi ,  Gengshi Wu

IPC: H04B1/60

CPC classification number: H04B7/0617 ,  H04B7/022 ,  H04B7/026 ,  H04B7/0619

Abstract: An uplink signal weighted processing method is disclosed. A first channel impulse response from a Mobile Station (MS) to a relay station, and a second channel impulse response from the relay station to a Base Station (BS) are acquired. A relay weight and a demodulation weight are determined according to the first channel impulse response and the second channel impulse response. The relay weight is sent to the relay station and the demodulation weight is sent to the BS, so as to enable the relay station to perform weighted processing on an MS uplink signal received by the relay station according to the relay weight to obtain an uplink relay weighted signal and to send the uplink relay weighted signal to the BS, and so as to enable the BS to perform demodulation weighted processing on the uplink relay weighted signal received by the BS according to the demodulation weight to obtain an uplink estimation signal corresponding to the MS uplink signal.

Abstract translation: 公开了一种上行链路信号加权处理方法。 获取从移动站（MS）到中继站的第一信道脉冲响应以及从中继站到基站（BS）的第二信道脉冲响应。 根据第一信道脉冲响应和第二信道脉冲响应来确定中继权重和解调权重。 继电器权重发送到中继站，并将解调权重发送到BS，以使得中继站能够根据中继权重对由中继站接收的MS上行链路信号执行加权处理，以获得上行链路中继 并向BS发送上行中继加权信号，以便BS能够根据解调权重对由BS接收的上行中继加权信号进行解调加权处理，以获得对应于上行链路中继加权信号的上行链路估计信号 MS上行信号。

公开(公告)号：US08588287B2

公开(公告)日：2013-11-19

申请号：US13446554

申请日：2012-04-13

Applicant: Zhiqun Chen ,  Feng Li ,  Gengshi Wu ,  Haitao Zhang ,  Jing Yang ,  Xiuqin Peng

Inventor： Zhiqun Chen ,  Feng Li ,  Gengshi Wu ,  Haitao Zhang ,  Jing Yang ,  Xiuqin Peng

IPC: H04B3/46

CPC classification number: H04W52/56 ,  H04B17/26 ,  H04L1/203

Abstract: A method, a device and a system for detecting channel quality are provided. The method includes: judging whether a Transmit Power Control (TPC) symbol output by a receiver is an invalid symbol; when the TPC symbol is a valid symbol, judging whether polarities of in-phase/quadrature (I/Q) components of the valid symbol are opposite to each other; counting the number of invalid symbols, the number of valid symbols, and the number of valid symbols with opposite polarities; and estimating a Bit Error Rate (BER) according to the number of the invalid symbols, the number of the valid symbols, and the number of the valid symbols with the opposite polarities, and detecting the channel quality through the BER.

Abstract translation: 提供了一种用于检测信道质量的方法，装置和系统。 该方法包括：判断接收机输出的发送功率控制（TPC）符号是否为无效符号; 当TPC符号是有效符号时，判断有效符号的同相/正交（I / Q）分量的极性是否彼此相反; 对无效符号的数量，有效符号的数量和具有相反极性的有效符号的数量进行计数; 以及根据无效符号的数量，有效符号的数量和具有相反极性的有效符号的数量来估计误码率（BER），并通过BER检测信道质量。

公开(公告)号：US20110142117A1

公开(公告)日：2011-06-16

申请号：US12981878

申请日：2010-12-30

Applicant: Meng HUA ,  Gengshi Wu ,  Chunling Zhang ,  Shurong Jiao

Inventor： Meng HUA ,  Gengshi Wu ,  Chunling Zhang ,  Shurong Jiao

IPC: H04B3/46 ,  H04B7/02

CPC classification number: H04L1/06 ,  H04L25/0242

Abstract: A signal detecting method and device for a multi-codeword multi-input multi-output (MIMO) system are provided, which are used in the field of communication and solve the problem that it is complex to implement a signal detecting method in the multi-codeword MIMO system and the error between the signal obtained through detection and the signal actually transmitted from the transmitting end is large. The method includes: converting a received complex number signal into a real number signal; performing channel estimation to obtain a channel matrix; correcting the channel matrix to obtain an equivalent corrected matrix; generating an equivalent detecting signal according to the equivalent corrected matrix and the real number signal obtained through conversion; quantizing the equivalent detecting signal to obtain an equivalent quantized detecting signal; and generating a signal transmitted from a transmitting end according to the equivalent quantized detecting signal. The method and device can be applied in a receiving device of a multi-codeword MIMO system.

Abstract translation: 提供了一种用于多码字多输入多输出（MIMO）系统的信号检测方法和装置，其用于通信领域，并且解决了在多通道中实现信号检测方法复杂的问题， 码字MIMO系统和通过检测获得的信号与从发送端实际发送的信号之间的误差大。 该方法包括：将接收到的复数信号转换为实数信号; 执行信道估计以获得信道矩阵; 校正信道矩阵以获得等效校正矩阵; 根据等效校正矩阵和通过转换获得的实数信号产生等效检测信号; 量化等效检测信号以获得等效量化检测信号; 以及根据等效量化检测信号生成从发送端发送的信号。 该方法和装置可以应用于多码字MIMO系统的接收装置中。

公开(公告)号：US08300677B2

公开(公告)日：2012-10-30

申请号：US12981878

申请日：2010-12-30

Applicant: Meng Hua ,  Gengshi Wu ,  Chunling Zhang ,  Shurong Jiao

Inventor： Meng Hua ,  Gengshi Wu ,  Chunling Zhang ,  Shurong Jiao

IPC: H04B1/00

CPC classification number: H04L1/06 ,  H04L25/0242

Abstract: A signal detecting method and device for a multi-codeword multi-input multi-output (MIMO) system are provided, which are used in the field of communication and solve the problem that it is complex to implement a signal detecting method in the multi-codeword MIMO system and the error between the signal obtained through detection and the signal actually transmitted from the transmitting end is large. The method includes: converting a received complex number signal into a real number signal; performing channel estimation to obtain a channel matrix; correcting the channel matrix to obtain an equivalent corrected matrix; generating an equivalent detecting signal according to the equivalent corrected matrix and the real number signal obtained through conversion; quantizing the equivalent detecting signal to obtain an equivalent quantized detecting signal; and generating a signal transmitted from a transmitting end according to the equivalent quantized detecting signal. The method and device can be applied in a receiving device of a multi-codeword MIMO system.

Abstract translation: 提供了一种用于多码字多输入多输出（MIMO）系统的信号检测方法和装置，其用于通信领域，并且解决了在多通道中实现信号检测方法复杂的问题， 码字MIMO系统和通过检测获得的信号与从发送端实际发送的信号之间的误差大。 该方法包括：将接收到的复数信号转换为实数信号; 执行信道估计以获得信道矩阵; 校正信道矩阵以获得等效校正矩阵; 根据等效校正矩阵和通过转换获得的实数信号产生等效检测信号; 量化等效检测信号以获得等效量化检测信号; 以及根据等效量化检测信号生成从发送端发送的信号。 该方法和装置可以应用于多码字MIMO系统的接收装置中。

公开(公告)号：US20120142302A1

公开(公告)日：2012-06-07

申请号：US13368801

申请日：2012-02-08

Applicant: Gengshi WU ,  Jing Yang ,  Nian Peng ,  Jiajing Zhou ,  Shufan Huang ,  Congli Mao

Inventor： Gengshi WU ,  Jing Yang ,  Nian Peng ,  Jiajing Zhou ,  Shufan Huang ,  Congli Mao

IPC: H04B15/00

CPC classification number: H03H17/0664

Abstract: In the field of communications technologies, a down sampling method and a down sampling device are provided, to enable the energy of a down sampling point obtained in down sampling to be as large as possible. The down sampling method includes: extracting energy statistical values of sampling point sets in a current period; selecting a sampling position corresponding to a sampling point set with the largest energy statistical value as a down sampling position; and performing down sampling according to the down sampling position.

Abstract translation: 在通信技术领域，提供下采样方法和下采样装置，以使得在下采样中获得的下采样点的能量尽可能大。 下采样方法包括：提取当前采样点集的能量统计值; 选择与具有最大能量统计值的采样点相对应的采样位置作为下采样位置; 并根据下采样位置执行下采样。

公开(公告)号：US20120033713A1

公开(公告)日：2012-02-09

申请号：US13274033

申请日：2011-10-14

Applicant: Jing Yang ,  Gengshi Wu ,  Nian Peng ,  Chunling Zhang ,  Meng Hua

Inventor： Jing Yang ,  Gengshi Wu ,  Nian Peng ,  Chunling Zhang ,  Meng Hua

IPC: H04B1/707

CPC classification number: H04B1/7107 ,  H04L25/0224 ,  H04L25/03019

Abstract: The present invention discloses a method for receiving and processing data. The method includes: convoluting a channel estimate value of a receive end with an SCH signal transmitted by a transmit end on an SCH and obtaining an SCH signal in a receive signal of the receive end; evaluating a difference between the receive signal and the SCH signal in the receive signal. An apparatus, and a user terminal are also disclosed in the present invention. By using the method and apparatus of the present invention, the SCH signal in a receiver may be restored and removed from the receive signal, and interference of the SCH on other channels may be eliminated, thereby improving performance of the receiver.

Abstract translation: 本发明公开了一种接收和处理数据的方法。 该方法包括：将接收端的信道估计值与由SCH发送端发送的SCH信号进行卷积，并获得接收端的接收信号中的SCH信号; 评估接收信号中的接收信号和SCH信号之间的差异。 本发明还公开了一种装置和用户终端。 通过使用本发明的方法和装置，接收机中的SCH信号可以从接收信号恢复和去除，并且可以消除SCH在其他信道上的干扰，从而提高接收机的性能。

公开(公告)号：US20120020440A1

公开(公告)日：2012-01-26

申请号：US13191151

申请日：2011-07-26

Applicant: Gengshi WU ,  Fengyu SUN ,  Meng HUA ,  Chunling ZHANG ,  Shurong JIAO

Inventor： Gengshi WU ,  Fengyu SUN ,  Meng HUA ,  Chunling ZHANG ,  Shurong JIAO

IPC: H04L27/06

CPC classification number: H04L25/0228

Abstract: A method and a device for determining a smooth window length in channel estimation is provided. The method includes: obtaining autocorrelation values of pilot signals, where the autocorrelation values include first autocorrelation values and second autocorrelation values, at least two first autocorrelation values exist, and at least one second autocorrelation value exists; determining a speed range according to symbols of the first autocorrelation values or the symbols of the first autocorrelation values and a ratio value between the second autocorrelation value and one of the first autocorrelation values; and determining the smooth window length according to the speed range. Through the method provided in embodiments of the present invention, the problems caused by a fixed smooth window length may be avoided, and this improves system performance.

Abstract translation: 提供了一种用于确定信道估计中的平滑窗口长度的方法和装置。 该方法包括：获得导频信号的自相关值，其中自相关值包括第一自相关值和第二自相关值，存在至少两个第一自相关值，并且存在至少一个第二自相关值; 根据所述第一自相关值的符号或所述第一自相关值的符号以及所述第二自相关值与所述第一自相关值之一之间的比值确定速度范围; 并根据速度范围确定平滑的窗口长度。 通过本发明实施例提供的方法，可以避免固定平滑窗口长度引起的问题，从而提高系统性能。

公开(公告)号：US07881687B2

公开(公告)日：2011-02-01

申请号：US11848001

申请日：2007-08-30

Applicant: Jing Yang ,  Yu Liu ,  Gengshi Wu

Inventor： Jing Yang ,  Yu Liu ,  Gengshi Wu

IPC: H04B1/10 ,  H04B17/00

CPC classification number: H04B1/30 ,  H04L25/063

Abstract: Embodiments of the present invention provide a method and a system for removing a Radio Frequency (RF) Direct Current (DC) offset in a signal. The method includes: subtracting a canceling DC from a signal carrying an RF DC offset and generating an RF DC offset residual; outputting the signal when the RF DC offset residual in the signal is zero; adjusting the canceling DC according to the RF DC offset residual in the signal if the RF DC offset residual is not zero. The system includes a receiver, an RF DC offset canceling unit, a determining unit, a canceling DC adjusting unit, and an output unit. With embodiments of the present invention, the RF DC offset in the signal may be effectively removed.

Abstract translation: 本发明的实施例提供一种用于去除信号中的射频（RF）直流（DC）偏移的方法和系统。 该方法包括：从承载RF DC偏移的信号中减去消除DC并产生RF DC偏移残差; 当信号中的RF DC偏移残差为零时，输出信号; 如果RF DC偏移残差不为零，则根据信号中的RF DC偏移残差调整抵消DC。 该系统包括接收器，RF DC偏移消除单元，确定单元，消除DC调整单元和输出单元。 利用本发明的实施例，可以有效地消除信号中的RF DC偏移。

公开(公告)号：US20100222056A1

公开(公告)日：2010-09-02

申请号：US12779712

申请日：2010-05-13

Applicant: Gengshi Wu

Inventor： Gengshi Wu

IPC: H04W4/00 ,  H04B17/00

CPC classification number: H04W48/20 ,  H04B1/0053 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/7087 ,  H04J11/0083

Abstract: The present invention discloses a method and an apparatus for searching for modes and frequencies. The method includes: obtaining signal energy of all frequency grids within a frequency range; obtaining energy of each mode on a smallest bandwidth according to the signal energy of the grids; sorting the energy on the smallest bandwidths of all modes; and accessing a specified number of frequencies and modes of the highest energy in the sorting result. With the present invention, energy on the smallest bandwidths of all modes at a frequency band is obtained and sorted and then an access mode is determined according to the sorting result. Thus the access mode to use for a specified frequency can be quickly determined so as to improve the access success rate of a terminal in the subsequent access process.

Abstract translation: 本发明公开了一种用于搜索模式和频率的方法和装置。 该方法包括：获得频率范围内所有频率网格的信号能量; 根据网格的信号能量，在最小带宽上获取每个模式的能量; 在所有模式的最小带宽上排序能量; 并在排序结果中访问指定数量的最高能量的频率和模式。 利用本发明，获得在频带上的所有模式的最小带宽上的能量并进行排序，然后根据分类结果确定访问模式。 因此，可以快速确定用于指定频率的访问模式，以便在随后的访问过程中提高终端的访问成功率。

公开(公告)号：US20090201980A1

公开(公告)日：2009-08-13

申请号：US12423085

申请日：2009-04-14

Applicant: Gengshi WU ,  Jing YANG

Inventor： Gengshi WU ,  Jing YANG

IPC: H04Q1/20

CPC classification number: H04B17/345

Abstract: A method and device for estimating a Gaussian white noise power in a channel and a receiver are provided. The method includes performing a multi-path search on a received signal to find out paths of the signal; performing a noise estimation on one of the paths to acquire a total noise power of the path; performing an inter-path interference noise estimation on N paths spaced apart from the path by an integral number of chips to obtain an inter-path interference noise power of a single path of the signal, where N is an integer greater than or equal to 1; and subtracting the inter-path interference noise power from the total noise power to obtain the Gaussian white noise power. Through the technical solution of the disclosure, the Gaussian white noise power in a channel is obtained with a higher accuracy, so that the performance of equalization is enhanced.

Abstract translation: 提供了一种用于估计信道和接收机中的高斯白噪声功率的方法和装置。 该方法包括对接收到的信号执行多路径搜索以找出该信号的路径; 对所述路径之一执行噪声估计以获得所述路径的总噪声功率; 在与路径间隔一定数量的码片的N个路径上执行路径间干扰噪声估计，以获得信号的单个路径的路径间干扰噪声功率，其中N是大于或等于1的整数 ; 并从总噪声功率中减去路径间干扰噪声功率以获得高斯白噪声功率。 通过本公开的技术方案，以更高的精度获得信道中的高斯白噪声功率，从而提高均衡性能。