公开(公告)号：US10805139B2

公开(公告)日：2020-10-13

申请号：US16233182

申请日：2018-12-27

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chih-Ying Chen ,  Ren-Jr Chen ,  Zan-Yu Chen ,  Chung-Lien Ho ,  Wen-Chiang Chen

IPC: H04L27/26 ,  H04B1/00

Abstract: A software-defined radio system for detecting packets is disclosed, including: a transmitting end configured for assigning a preamble and a postamble to a start position and an end position of a packet of a signal, respectively, before transmitting the signal; and a receiving end configured for detecting if a packet exists in the air or in a channel based on the preamble and the postamble, wherein the receiving end stores the signal in memory when detecting the preamble, and stops storing the signal in the memory and transmits the signal to a computing device when detecting the postamble. A packet detection method for a software-defined radio system is also provided.

公开(公告)号：US10271821B2

公开(公告)日：2019-04-30

申请号：US14580221

申请日：2014-12-23

Applicant: Industrial Technology Research Institute

Inventor： Chung-Lien Ho ,  Yi-Ting Wang ,  Ren-Jr Chen ,  Chu-Yu Huang

IPC: A61B8/00 ,  A61B8/08 ,  G01S7/52 ,  G01S15/89 ,  G10K11/34 ,  A61B8/14

Abstract: A method of ultrasound imaging and a corresponding ultrasound scanner are provided. The method includes the steps of receiving an echo signal induced by an ultrasonic plane wave transmission from a transducer of an ultrasound scanner, resampling the echo signal in time domain and/or space domain, performing a spectrum zooming on a band of interest (BOI) of an input signal, performing a Fourier transform on a result of the spectrum zooming, and generating an ultrasound image based on a result of the Fourier transform. The input signal is generated based on the resampling of the echo signal.

公开(公告)号：US20180159623A1

公开(公告)日：2018-06-07

申请号：US15390993

申请日：2016-12-27

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Zan-Yu Chen ,  Ren-Jr Chen ,  Chung-Lien Ho ,  Wen-Chiang Chen

IPC: H04B10/116 ,  H04Q11/00

CPC classification number: H04B10/116 ,  H04B10/114 ,  H04B10/1143 ,  H04Q11/00 ,  H04Q11/0062 ,  H04Q2011/0086

Abstract: A visible light communication method performs visible light communication by using a visible light source. In searching a central frequency of the visible light source, a plurality of central-frequency training packets are sent, the central-frequency training packets including a plurality of central-frequency candidates, and one among the plurality of central-frequency candidates is selected as the central frequency of the visible light source based on a first decoding result on the plurality of central-frequency training packets. In searching a bandwidth of the visible light source, a plurality of bandwidth training packets are sent, the bandwidth training packets including a plurality of bandwidth candidates and the central frequency of the visible light source, and one among the plurality of bandwidth candidates is selected as the bandwidth of the visible light source based on a second decoding result on the plurality of bandwidth training packets.

公开(公告)号：US20160242159A1

公开(公告)日：2016-08-18

申请号：US14979547

申请日：2015-12-28

Applicant: Industrial Technology Research Institute

Inventor： Chung-Lien Ho ,  Ren-Jr Chen ,  Wen-Chiang Chen

IPC: H04W72/04 ,  H04W72/14

CPC classification number: H04B7/0408 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0695 ,  H04W16/28 ,  H04W48/00

Abstract: A beamforming method of millimeter wave communication is introduced herein. the beamforming method is adapted to a base station and includes following steps. A plurality of periodic signals are transmitted by using a frame header of M radio frames via Q base station beams designated as Q scan beams while performing a network entry, wherein M≧1 and Q≧1. Data packets are transceived by using a payload region of the M radio frames via at least one scheduled beam while a user equipment connection is performed via the scheduled beam selected from the Q base station beams.

Abstract translation: 本文介绍了毫米波通信的波束成形方法。 波束成形方法适用于基站，包括以下步骤。 通过在执行网络输入时通过被指定为Q扫描束的Q个基站波束，通过使用M个无线帧的帧头来发送多个周期信号，其中M≥1且Q≥1。 通过经由至少一个调度波束的M个无线电帧的有效载荷区域来收发数据分组，同时经由从Q个基站波束选择的调度波束执行用户设备连接。

公开(公告)号：US20150293222A1

公开(公告)日：2015-10-15

申请号：US14251299

申请日：2014-04-11

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chu-Yu Huang ,  Chir-Weei Chang ,  Kuo-Tung Tiao ,  Wen-Hung Cheng ,  Hsin-Yueh Sung ,  Ren-Jr Chen ,  Chung-Lien Ho ,  Yi-Ting Wang

IPC: G01S15/02

CPC classification number: G01S15/8977 ,  G01S15/8995

Abstract: According to an exemplary embodiment, an ultrasound apparatus for beamforming with a plane wave transmission may comprise a transceiver connected to a transducer array having at least one transducer element, and at least one processor. The transceiver transmits at least one substantially planar ultrasonic wave into a target region at one or more angles relative to the transducer array, and receives one or more signals responsive from the transducer array. The at least one processor applies a fast Fourier transform (FFT) to the one or more signals from each of the at least one transducer element and calculates at least one frequency within a frequency region, and applies an inverse FFT to at least one produced frequency data.

Abstract translation: 根据示例性实施例，用于具有平面波传输的波束成形的超声波装置可以包括连接到具有至少一个换能器元件的换能器阵列的收发器和至少一个处理器。 收发器相对于换能器阵列以一个或多个角度将至少一个基本上平面的超声波发射到目标区域中，并且从换能器阵列接收一个或多个信号。 所述至少一个处理器对来自所述至少一个换能器元件中的每一个的所述一个或多个信号应用快速傅里叶变换（FFT），并且计算频率区域内的至少一个频率，并且将至少一个产生频率 数据。

公开(公告)号：US09008712B2

公开(公告)日：2015-04-14

申请号：US13733891

申请日：2013-01-04

Applicant: Industrial Technology Research Institute

Inventor： Chung-Lien Ho

IPC: H04W4/00 ,  H04B7/00 ,  H04B3/46 ,  H04B17/00 ,  H04L1/00 ,  H04L12/26 ,  H04L12/28 ,  H04W8/00 ,  H04W56/00 ,  H04B7/02 ,  H04L27/26 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04W8/00 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0639 ,  H04L27/2662 ,  H04L27/2675 ,  H04W56/0045

Abstract: A method of handling a plurality of time offsets between a communication device of a wireless communication system and a plurality of transmission points of the wireless communication system is disclosed. The method is utilized in the communication device, and comprises obtaining the plurality of time offsets by using a first reference signal; and transmitting the plurality of time offsets to the plurality of transmission points, respectively; wherein the plurality of transmission points compensate the plurality of time offsets, respectively, when communicating with the communication device.

Abstract translation: 公开了一种在无线通信系统的通信设备与无线通信系统的多个发送点之间处理多个时间偏移的方法。 该方法用于通信设备，并且包括通过使用第一参考信号获得多个时间偏移; 以及分别将所述多个时间偏移发送到所述多个发送点; 其中当与所述通信设备进行通信时，所述多个传输点分别补偿所述多个时间偏移。

公开(公告)号：US08923207B2

公开(公告)日：2014-12-30

申请号：US13726226

申请日：2012-12-24

Applicant: Industrial Technology Research Institute

Inventor： Chung-Lien Ho

IPC: H04Q7/00 ,  H04Q7/24 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0446 ,  H04L5/0035 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0226

Abstract: A method and an apparatus are provided for scrambling sequence initialization for downlink demodulation reference signal (DL DMRS) applied to the multi-user (MU) multi-input multi-output (MU-MIMO) in a coordinated multiple point (CoMP) scenario. The value of virtual slot index in the sequence initialization of the DL DMRS can be dynamically selected from two candidates and tied to the virtual cell ID and/or the physical downlink shared channel (PDSCH) scrambling ID. The two candidate values can be configured by a user equipment (UE) specific semi-statistical higher layer signaling if a subframe shifting is considered for enhanced inter-cell interference cancellation (eICIC) in HeNets. Possible values of virtual slot index used for generating the DL DMRS sequence initialization of the cell can then be derived so that access procedure information, which may include synchronization signal, physical broadcast channel, paging message, can be reliably received at the remote radio header (RRH) or pico cell.

Abstract translation: 提供一种方法和装置，用于对协调多点（CoMP）情景中应用于多用户（MU）多输入多输出（MU-MIMO）的下行链路解调参考信号（DL DMRS）进行加扰序列初始化。 DL DMRS的序列初始化中的虚拟时隙索引的值可以从两个候选中动态地选择，并与虚拟小区ID和/或物理下行链路共享信道（PDSCH）加扰ID相关联。 如果在HeNets中考虑了用于增强小区间干扰消除（eICIC）的子帧移位，则两个候选值可以由用户设备（UE）特定的半统计更高层信令配置。 然后可以导出用于生成小区的DL DMRS序列初始化的虚拟时隙索引的可能值，使得可以在远程无线电报头处可靠地接收可能包括同步信号，物理广播信道，寻呼消息的接入过程信息 RRH）或微微细胞。

公开(公告)号：US20130308555A1

公开(公告)日：2013-11-21

申请号：US13726226

申请日：2012-12-24

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chung-Lien Ho

IPC: H04W72/04

CPC classification number: H04W72/0446 ,  H04L5/0035 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0226

Abstract: A method and an apparatus are provided for scrambling sequence initialization for downlink demodulation reference signal (DL DMRS) applied to the multi-user (MU) multi-input multi-output (MU-MIMO) in a coordinated multiple point (CoMP) scenario. The value of virtual slot index in the sequence initialization of the DL DMRS can be dynamically selected from two candidates and tied to the virtual cell ID and/or the physical downlink shared channel (PDSCH) scrambling ID. The two candidate values can be configured by a user equipment (UE) specific semi-statistical higher layer signaling if a subframe shifting is considered for enhanced inter-cell interference cancellation (eICIC) in HeNets. Possible values of virtual slot index used for generating the DL DMRS sequence initialization of the cell can then be derived so that access procedure information, which may include synchronization signal, physical broadcast channel, paging message, can be reliably received at the remote radio header (RRH) or pico cell.

Abstract translation: 提供一种方法和装置，用于对协调多点（CoMP）情景中应用于多用户（MU）多输入多输出（MU-MIMO）的下行链路解调参考信号（DL DMRS）进行加扰序列初始化。 DL DMRS的序列初始化中的虚拟时隙索引的值可以从两个候选中动态地选择，并与虚拟小区ID和/或物理下行链路共享信道（PDSCH）加扰ID相关联。 如果在HeNets中考虑了子帧移位以增强小区间干扰消除（eICIC），则两个候选值可以由用户设备（UE）特定的半统计高层信令配置。 然后可以导出用于生成小区的DL DMRS序列初始化的虚拟时隙索引的可能值，使得可以在远程无线电报头处可靠地接收可能包括同步信号，物理广播信道，寻呼消息的接入过程信息 RRH）或微微细胞。

公开(公告)号：US20130178202A1

公开(公告)日：2013-07-11

申请号：US13733891

申请日：2013-01-04

Applicant: Industrial Technology Research Institute

Inventor： Chung-Lien Ho

IPC: H04W8/00

CPC classification number: H04W8/00 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0639 ,  H04L27/2662 ,  H04L27/2675 ,  H04W56/0045

Abstract: A method of handling a plurality of time offsets between a communication device of a wireless communication system and a plurality of transmission points of the wireless communication system is disclosed. The method is utilized in the communication device, and comprises obtaining the plurality of time offsets by using a first reference signal; and transmitting the plurality of time offsets to the plurality of transmission points, respectively; wherein the plurality of transmission points compensate the plurality of time offsets, respectively, when communicating with the communication device.

Abstract translation: 公开了一种在无线通信系统的通信设备与无线通信系统的多个发送点之间处理多个时间偏移的方法。 该方法用于通信设备，并且包括通过使用第一参考信号获得多个时间偏移; 以及分别将所述多个时间偏移发送到所述多个发送点; 其中当与所述通信设备进行通信时，所述多个传输点分别补偿所述多个时间偏移。