公开(公告)号：US20110069775A1

公开(公告)日：2011-03-24

申请号：US12727528

申请日：2010-03-19

Applicant: Cheng Hsuan WU ,  Yen Chin LIAO ,  Yung Szu TU

Inventor： Cheng Hsuan WU ,  Yen Chin LIAO ,  Yung Szu TU

IPC: H04B7/02

CPC classification number: H04B7/0434 ,  H04L5/0023

Abstract: A signal processing method for a MIMO system comprises the steps of: arranging a plurality of frequency domain MIMO data streams into a plurality of groups, wherein each group comprises at least a frequency domain MIMO data stream; partitioning sub-carriers of each of the plurality of frequency domain MIMO data streams into a plurality of sub-channels; performing phase rotation for the plurality of frequency domain MIMO data streams, wherein the phases of the sub-carriers in a sub-channel are rotated the same amount, and different phase rotations are performed on different groups of the plurality of frequency domain MIMO data streams; transforming the plurality of frequency domain MIMO data streams into a plurality of time domain MIMO data streams; and performing CSD for the plurality of time domain MIMO data streams if each group comprises more than one frequency domain MIMO data stream, wherein the amount of CSD is different for each time domain MIMO data stream in a group.

Abstract translation: 一种用于MIMO系统的信号处理方法包括以下步骤：将多个频域MIMO数据流布置成多个组，其中每个组包括至少一个频域MIMO数据流; 将所述多个频域MIMO数据流中的每一个的子载波划分成多个子信道; 执行多个频域MIMO数据流的相位旋转，其中子信道中的子载波的相位旋转相同的量，并且在多个频域MIMO数据流的不同组上执行不同的相位旋转 ; 将所述多个频域MIMO数据流变换为多个时域MIMO数据流; 以及如果每个组包括多于一个的频域MIMO数据流，则针对所述多个时域MIMO数据流执行CSD，其中对于组中的每个时域MIMO数据流，CSD的量是不同的。

公开(公告)号：US20100295734A1

公开(公告)日：2010-11-25

申请号：US12614437

申请日：2009-11-08

Applicant: Cheng-Hsuan Wu ,  Chin-Tseng Huang ,  Yung-Szu Tu ,  Jiunn-Tsair Chen

Inventor： Cheng-Hsuan Wu ,  Chin-Tseng Huang ,  Yung-Szu Tu ,  Jiunn-Tsair Chen

IPC: G01S5/02

CPC classification number: G01S13/876 ,  G01S5/0205

Abstract: A method of enhancing accuracy of position estimation for a wireless communication system includes receiving a plurality of input measurements required for estimating a position of a target, and generating a plurality of Gaussian probability density functions corresponding to the plurality of input measurements, the plurality of Gaussian probability density functions being used for estimating the position of the target.

Abstract translation: 一种增强无线通信系统的位置估计精度的方法包括：接收估计目标位置所需的多个输入测量值，以及生成与多个输入测量对应的多个高斯概率密度函数，所述多个高斯 概率密度函数用于估计目标的位置。

公开(公告)号：US20100272198A1

公开(公告)日：2010-10-28

申请号：US12501486

申请日：2009-07-12

Applicant: Yung-Szu Tu ,  Jiunn-Tsair Chen ,  Yen-Chin Liao ,  Cheng-Hsuan Wu

Inventor： Yung-Szu Tu ,  Jiunn-Tsair Chen ,  Yen-Chin Liao ,  Cheng-Hsuan Wu

IPC: H04L27/28 ,  H04L27/00

CPC classification number: H04L25/0212 ,  H04L25/022 ,  H04L25/0222 ,  H04L25/0224

Abstract: A method and related system of transmission channel detection condition in a wireless communication system are disclosed. The method includes receiving a symbol, performing a channel estimation operation to generate a channel estimation result according to the symbol, performing a cross correlation operation on the channel estimation result and an initial channel estimation result to generate an operation result, and determining whether the condition of the transmission channel have changed or not.

Abstract translation: 公开了一种在无线通信系统中的传输信道检测条件的方法和相关系统。 该方法包括接收符号，执行信道估计操作以根据符号生成信道估计结果，对信道估计结果执行互相关操作和初始信道估计结果以产生操作结果，以及确定条件 的传输通道已经改变了。

公开(公告)号：US20100182198A1

公开(公告)日：2010-07-22

申请号：US12499635

申请日：2009-07-08

Applicant: Chun Hsien Wen ,  Jiunn Tsair Chen ,  Cheng Hsuan Wu ,  Yen Chin Liao

Inventor： Chun Hsien Wen ,  Jiunn Tsair Chen ,  Cheng Hsuan Wu ,  Yen Chin Liao

IPC: H01Q3/00

CPC classification number: H01Q3/2605 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0663 ,  H04L25/0248 ,  H04L25/03343 ,  H04L25/03949 ,  H04L25/03961 ,  H04L2025/03802 ,  H04W16/28 ,  H04W24/00

Abstract: The method for beamforming in a wireless communication system comprises the steps of: receiving a sounding packet so as to estimate channel state information between a transmitter and a receiver; generating a beamforming matrix in accordance with the channel state information; generating a beamforming steering matrix by multiplying the beamforming matrix by a rotation matrix; and feeding back the beamforming steering matrix.

Abstract translation: 无线通信系统中波束成形的方法包括以下步骤：接收探测分组，以估计发射机与接收机之间的信道状态信息; 根据信道状态信息生成波束成形矩阵; 通过将所述波束形成矩阵乘以旋转矩阵来生成波束成形导引矩阵; 并反馈波束形成导向矩阵。

公开(公告)号：US20090245400A1

公开(公告)日：2009-10-01

申请号：US12362054

申请日：2009-01-29

Applicant: Jiunn-Tsair Chen ,  Cheng-Hsuan Wu ,  Yai-Nan Lee

Inventor： Jiunn-Tsair Chen ,  Cheng-Hsuan Wu ,  Yai-Nan Lee

IPC: H04L27/28 ,  H04L1/02

CPC classification number: H04L1/0009 ,  H04L1/0015 ,  H04L1/06

Abstract: A method that selects an error-correction code for use in a multiple-input multiple output (MIMO) wireless communication system is disclosed that optimizes the performance of the MIMO wireless communication system. The method selects the error-correction code according to at least one system parameter and at least one channel parameter of the MIMO wireless communication system, such that the selected error-correction code matches the hardware configuration and channel setting of the MIMO wireless communication system.

Abstract translation: 公开了一种选择在多输入多输出（MIMO）无线通信系统中使用的纠错码的方法，其优化了MIMO无线通信系统的性能。 该方法根据MIMO无线通信系统的至少一个系统参数和至少一个信道参数选择纠错码，使得所选择的纠错码与MIMO无线通信系统的硬件配置和信道设置相匹配。

公开(公告)号：US20090232068A1

公开(公告)日：2009-09-17

申请号：US12357798

申请日：2009-01-22

Applicant: Cheng-Hsuan WU ,  Jiunn-Tsair Chen

Inventor： Cheng-Hsuan WU ,  Jiunn-Tsair Chen

IPC: H04W4/00

CPC classification number: H04W72/06 ,  H04W72/0406

Abstract: The present invention provides a method for dynamic channel assignment for a wireless communication system. First, a respective channel allocation probability vector at each mobile terminal is randomly generated, and is then sent to the base stations covering the mobile terminal. Subsequently, the channel allocation probability vectors are integrated into channel allocation information for the mobile terminals covered by the base station. Afterwards, based on the channel allocation information, a corresponding channel allocation notice is sent to the mobile terminals covered by the base station, respectively. Finally, according to the channel allocation notice, the channels of the base station are assigned for the mobile terminals covered by the base station.

Abstract translation: 本发明提供了一种用于无线通信系统的动态信道分配的方法。 首先，随机生成各移动终端的各信道分配概率向量，然后发送给覆盖移动终端的基站。 随后，信道分配概率向量被集成到由基站覆盖的移动终端的信道分配信息中。 然后，基于信道分配信息，将相应的信道分配通知分别发送到由基站覆盖的移动终端。 最后，根据信道分配通知，为基站覆盖的移动终端分配基站的信道。

公开(公告)号：US09670651B1

公开(公告)日：2017-06-06

申请号：US14957822

申请日：2015-12-03

Applicant: Cheng-Hsuan Wu

Inventor： Cheng-Hsuan Wu

IPC: E03B9/02 ,  E03B7/12 ,  E03C1/04 ,  E03C1/02

CPC classification number: E03B7/12 ,  E03B9/025 ,  E03C1/0403 ,  E03C2001/026

Abstract: An anti-freeze faucet contains: a first pipe, a second pipe, a control holder, a closing member, a closing member, a controlling valve, and a resilient element. The first pipe includes a first through hole, an outlet, an inlet, a channel, and a fitting sleeve having a second through hole and an inner screwing section. The second pipe includes a vertical moving portion, a connecting portion, and an air conduit. The vertical moving portion is connected with a rotary knob and has an outer screwing section and an air orifice. The control holder includes a water aperture, a water stop ring, plural first vents, plural second vents, and a connection portion. The closing member is fitted between the control holder and the connecting portion. The controlling valve is connected with the coupling portion, and the resilient element is mounted on the coupling portion and pushes the controlling valve toward the inlet.

公开(公告)号：US20150330063A1

公开(公告)日：2015-11-19

申请号：US14277828

申请日：2014-05-15

Applicant: Cheng-Hsuan Wu

Inventor： Cheng-Hsuan Wu

IPC: E03B9/02 ,  E03B9/14 ,  E03B7/10

CPC classification number: E03B9/027 ,  E03B7/10 ,  E03B7/12 ,  E03B9/025 ,  E03B9/14 ,  Y10T137/3331 ,  Y10T137/5497

Abstract: An anti-freeze faucet structure contains: an outer pipe, an inner pipe, a control valve, a resilient element, a unidirectional sealing gasket, and a controlling assembly. The outer pipe includes an inlet, an outlet, an opening, an intake valve, and a channel, wherein the channel has plural inner threads. The inner pipe includes a connecting segment and a fitting segment opposite to the connecting segment, the fitting segment has a peripheral protrusion, and the peripheral protrusion has a plurality of outer threads screwing with the plural inner threads of the outer pipe. The control valve movably is fitted on the fitting segment to abut against and close the inlet; the resilient element is fixed in the inner pipe to push against the control valve; the unidirectional sealing gasket is fitted onto the inner pipe; and the controlling assembly is disposed on the opening of the outer pipe.

Abstract translation: 防冻龙头结构包括：外管，内管，控制阀，弹性元件，单向密封垫圈和控制组件。 外管包括入口，出口，开口，进气门和通道，其中通道具有多个内螺纹。 内管包括连接段和与连接段相对的配合段，配合段具有周边突起，并且周边突起具有与外管的多个内螺纹螺合的多个外螺纹。 控制阀可移动地装配在配件段上以抵靠并关闭入口; 弹性元件固定在内管中以推压控制阀; 单向密封垫圈安装在内管上; 并且控制组件设置在外管的开口上。

公开(公告)号：US08488530B2

公开(公告)日：2013-07-16

申请号：US11465805

申请日：2006-08-19

Applicant: Cheng-Hsuan Wu ,  Jiunn-Tsair Chen

Inventor： Cheng-Hsuan Wu ,  Jiunn-Tsair Chen

IPC: H04W72/04 ,  H04W4/00 ,  H04L12/28

CPC classification number: H04W16/10 ,  H04B17/391 ,  H04W16/22 ,  H04W28/18 ,  H04W72/04 ,  H04W88/08

Abstract: Disclosed is a method and apparatus for dynamic channel assignment (DCA) in a wireless network, which describes the complex channel assignment problem with a decoding problem. The invention describes the decoding problem with a normal graph and specifies all the local rules enforced by all the nodes at access point sides and subscriber sides. Then, the invention carries out the sum-product algorithm to solve the DCA. It is not only a fully-distributed low-complexity DCA technology, but also significantly increases the network throughput. The invention further adopts the concept of subscriber exclusive region to guarantee the link quality between a subscriber and an access point.

Abstract translation: 公开了一种无线网络中动态信道分配（DCA）的方法和装置，其描述了解码问题的复杂信道分配问题。 本发明描述了普通图的解码问题，并指定了接入点侧和用户侧所有节点实施的所有本地规则。 然后，本发明实施求和算法来求解DCA。 它不仅是一种全面分布的低复杂度DCA技术，而且显着提高了网络吞吐量。 本发明进一步采用用户独占区域的概念来保​​证用户和接入点之间的链路质量。

公开(公告)号：US08374074B2

公开(公告)日：2013-02-12

申请号：US12941964

申请日：2010-11-08

Applicant: Yen-Chin Liao ,  Cheng-Hsuan Wu ,  Yung-Szu Tu

Inventor： Yen-Chin Liao ,  Cheng-Hsuan Wu ,  Yung-Szu Tu

IPC: H04J11/00

CPC classification number: H04L27/2621

Abstract: A method of reducing a signal peak to average power ratio (PAPR) for a transmission channel in a wireless communication system is disclosed. The transmission channel is divided into a plurality of channel segments, and the method includes calculating PAPRs corresponding to the plurality of channel segments by a plurality of phase rotation vectors; selecting a plurality of specified phase rotation vectors from the plurality of phase rotation vectors according to the calculated PAPRs; and using one of the plurality of specified phase rotation vectors to rotate a phase of a signal to be transmitted.

Abstract translation: 公开了一种降低无线通信系统中的传输信道的信号峰均功率比（PAPR）的方法。 传输信道被划分为多个信道段，并且该方法包括通过多个相位旋转矢量来计算与多个信道段相对应的PAPR; 根据所计算的PAPR从多个相位旋转矢量中选择多个规定的相位旋转矢量; 以及使用所述多个指定相位旋转矢量中的一个旋转要发送的信号的相位。