公开(公告)号：US20210151870A1

公开(公告)日：2021-05-20

申请号：US16727800

申请日：2019-12-26

Applicant: Industrial Technology Research Institute

Inventor： Fang-Yao Kuo ,  Che-Yang Chiang ,  Wen-Chiang Chen

IPC: H01Q1/42

Abstract: A wireless device includes a shell and an array antenna. The shell is configured with a low reflection structure. The array antenna disposed inside the shell, and the low reflection structure is located within a radiation range of the array antenna after beam scanning. The low reflection structure includes a plurality of slots arranged periodically.

公开(公告)号：US10820323B2

公开(公告)日：2020-10-27

申请号：US15933381

申请日：2018-03-23

Applicant: Industrial Technology Research Institute

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

IPC: H04W72/04 ,  H04W16/28 ,  H04W76/27

Abstract: An aspect of the disclosure includes a beam indication method for a multibeam wireless communication system, including: obtaining a number of candidate beams and a number of active beams to determine a plurality of beam groups, wherein the beam groups are selections of the active beams from the candidate beams; extracting a plurality of sets of the beam groups from the beam groups, wherein the plurality of sets of the beam groups comprises a first beam group set; assigning a first indicator to the first beam group set; assigning a beam indicator to one of the beam groups in the first beam group set to generate a codebook for beam indication according to the first indicator and the beam indicator.

公开(公告)号：US20200014575A1

公开(公告)日：2020-01-09

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：US20180338254A1

公开(公告)日：2018-11-22

申请号：US15684952

申请日：2017-08-24

Applicant: Industrial Technology Research Institute

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

IPC: H04W24/10

Abstract: An aspect of the disclosure includes a beam tracking method used by a user equipment, the method would include: receiving, within a first time period, a first plurality of reference signal sequences including a first reference signal sequence associated with a first cell beam and a second reference signal sequence associated with a second cell beam; measure a beam quality which include a first measurement of a first cell beam and a second measurement of a second cell beam; generating, based on the beam quality, a measurement report; and transmitting the measurement report.

公开(公告)号：US20170164211A1

公开(公告)日：2017-06-08

申请号：US15367202

申请日：2016-12-02

Applicant: Industrial Technology Research Institute

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

IPC: H04W16/28 ,  H04W72/04 ,  H04L27/26 ,  H04W48/16 ,  H04W74/08

CPC classification number: H04W16/28 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L27/2602 ,  H04W36/0088 ,  H04W48/16 ,  H04W72/0413 ,  H04W72/046 ,  H04W72/085 ,  H04W74/0833 ,  H04W88/02 ,  H04W88/08

Abstract: According to one of the exemplary embodiments, the proposed network entry method is applicable to a user equipment and includes: receiving, within an mmWave band, Q scan beams which have Q IDs over M mmWave time units as each mmWave time unit includes a payload region and a BF header region that includes N BSSs with each of the BSSs corresponding to a different one of the Q scan beams, wherein M, N, and Q are integers greater than 1 and M*N=Q; determining a best beam of the UE based on the BSSs of the Q scan beams; determining a best scan beam of the Q scan beams based on the BSSs of the Q scan beams after determining the best beam of the UE; and transmitting, within the mmWave band, a random access preamble (RAP) by using the best beam of the UE.

公开(公告)号：US20160165583A1

公开(公告)日：2016-06-09

申请号：US14953008

申请日：2015-11-26

Applicant: Industrial Technology Research Institute

Inventor： Chung-Lien Ho ,  Ren-Jr Chen ,  Yi-Ting Wang ,  Wen-Chiang Chen ,  Pang-An Ting

IPC: H04W72/04 ,  H04W72/14 ,  H04L12/741 ,  H04W72/06

CPC classification number: H04W72/046 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0695 ,  H04L45/74 ,  H04W72/0406 ,  H04W72/06 ,  H04W72/14

Abstract: The present disclosure proposes a hierarchical beamforming method and a base station and a user equipment using the same. The method includes following steps. A network entry procedure is performed via a plurality of coarse beams by using a superframe header of a superframe corresponding to each of the coarse beams. In response to a success message associated with the network entry procedure being received, a network entry done message is transmitted by using a preferred coarse beam among the coarse beams. A user equipment (UE) connection is performed via a plurality of fine beams within a direction range of the preferred coarse beam, so as to determine a preferred fine beam by using a frame header of a basic frame corresponding to each of the fine beams, and perform a data packet transmission by using a packet transmission block of the basic frame corresponding to the preferred fine beam.

Abstract translation: 本公开提出了分层波束成形方法和基站以及使用它们的用户设备。 该方法包括以下步骤。 通过使用与每个粗略波束对应的超帧的超帧报头，经由多个粗略波束执行网络输入过程。 响应于正在接收的网络输入过程相关联的成功消息，通过在粗略波束中使用优选的粗略波束来发送网络进入完成消息。 通过在优选粗略波束的方向范围内的多个精细波束执行用户设备（UE）连接，以便通过使用与每个精细波束对应的基本帧的帧头来确定优选的精细波束， 并通过使用对应于优选精细波束的基本帧的分组传输块来执行数据分组传输。

公开(公告)号：US11217885B2

公开(公告)日：2022-01-04

申请号：US16727800

申请日：2019-12-26

Applicant: Industrial Technology Research Institute

Inventor： Fang-Yao Kuo ,  Che-Yang Chiang ,  Wen-Chiang Chen

IPC: H01Q1/42 ,  H01Q21/00 ,  H01Q21/06 ,  H01Q1/24

Abstract: A wireless device includes a shell and an array antenna. The shell is configured with a low reflection structure. The array antenna disposed inside the shell, and the low reflection structure is located within a radiation range of the array antenna after beam scanning. The low reflection structure includes a plurality of slots arranged periodically.

公开(公告)号：US10469183B1

公开(公告)日：2019-11-05

申请号：US16233118

申请日：2018-12-27

Applicant: Industrial Technology Research Institute

Inventor： Fang-Yao Kuo ,  Che-Yang Chiang ,  Wen-Chiang Chen

IPC: H04B17/00 ,  H01Q3/26 ,  H04W24/00 ,  H04B17/21 ,  H04B17/12

Abstract: An antenna device and a method for calibrating an antenna device are provided, and the method includes: transmitting or receiving a signal by a first antenna unit and a second antenna unit; receiving the signal from the first antenna unit and the second antenna unit or transmitting the signal to the first antenna unit and the second antenna unit by a probe, wherein the first antenna unit and the second antenna unit are at a first distance from the probe respectively; and calibrating the first antenna unit and the second antenna unit according to a beat frequency of the signal corresponding to the first distance.

公开(公告)号：US20190045494A1

公开(公告)日：2019-02-07

申请号：US15933381

申请日：2018-03-23

Applicant: Industrial Technology Research Institute

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

IPC: H04W72/04 ,  H04W76/27 ,  H04W16/28

Abstract: An aspect of the disclosure includes a beam indication method for a multibeam wireless communication system, including: obtaining a number of candidate beams and a number of active beams to determine a plurality of beam groups, wherein the beam groups are selections of the active beams from the candidate beams; extracting a plurality of sets of the beam groups from the beam groups, wherein the plurality of sets of the beam groups comprises a first beam group set; assigning a first indicator to the first beam group set; assigning a beam indicator to one of the beam groups in the first beam group set to generate a codebook for beam indication according to the first indicator and the beam indicator.

公开(公告)号：US10200093B2

公开(公告)日：2019-02-05

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: H04B7/06 ,  H04B7/0408 ,  H04W48/00 ,  H04W16/28

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.