公开(公告)号：US10771143B1

公开(公告)日：2020-09-08

申请号：US16728606

申请日：2019-12-27

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chao-Kai Wen ,  Zi-Hui Shen ,  Wan-Ting Shih

IPC: H04B17/00 ,  H04B7/00 ,  H04B7/08 ,  H04B17/20 ,  H04B7/0408

Abstract: A switching method for multiple antenna arrays is disclosed which including: turning on a number of antenna arrays of an electronic device, and obtaining multiple received powers of a beam signal; turning off the antenna array(s) other than the antenna array having the largest received power, and calculating multiple first power ratio parameters according to the received powers; calculating a first channel information of the antenna array which is turned on; calculating a first virtual channel information of each of the antenna arrays which are turned off according to the first channel information, the first power ratio parameter corresponding to each of the antenna arrays which are turned off and an angle mapping table; and selecting one of the antenna arrays to turn on according to the first channel information and all the first virtual channel information, and turning off the rest antenna array(s).

公开(公告)号：US20200220593A1

公开(公告)日：2020-07-09

申请号：US16354266

申请日：2019-03-15

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chao-Kai Wen ,  Wan-Ting Shih ,  Ren-Jr Chen

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0417 ,  G06N3/04 ,  G06N3/08

Abstract: A communication system and a codec method based on deep learning and known channel state information (CSI) are provided. The communication system includes: a first electronic apparatus including a known first link CSI and a CSI encoder having a deep learning function; and a second electronic apparatus including a known second link CSI and a CSI decoder having a deep learning function. The first and second link CSIs have a correlation or a similarity. The CSI encoder of the first electronic apparatus encodes or compresses the first link CSI into the first codeword, and feeds the first codeword back to the second electronic apparatus via a feedback link. The CSI decoder of the second electronic apparatus encodes or compresses the second link CSI into a second codeword, and decodes or restores the first link CSI of the first electronic apparatus based on the first codeword and the second codeword.

公开(公告)号：US10911113B2

公开(公告)日：2021-02-02

申请号：US16354266

申请日：2019-03-15

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chao-Kai Wen ,  Wan-Ting Shih ,  Ren-Jr Chen

IPC: H04B7/0456 ,  G06N3/04 ,  G06N3/08 ,  H04B7/0417 ,  H04B7/06

Abstract: A communication system and a codec method based on deep learning and known channel state information (CSI) are provided. The communication system includes: a first electronic apparatus including a known first link CSI and a CSI encoder having a deep learning function; and a second electronic apparatus including a known second link CSI and a CSI decoder having a deep learning function. The first and second link CSIs have a correlation or a similarity. The CSI encoder of the first electronic apparatus encodes or compresses the first link CSI into the first codeword, and feeds the first codeword back to the second electronic apparatus via a feedback link. The CSI decoder of the second electronic apparatus encodes or compresses the second link CSI into a second codeword, and decodes or restores the first link CSI of the first electronic apparatus based on the first codeword and the second codeword.

公开(公告)号：US09667325B1

公开(公告)日：2017-05-30

申请号：US15085159

申请日：2016-03-30

Applicant: Industrial Technology Research Institute

Inventor： Chang-Jen Wang ,  Chao-Kai Wen ,  Jen-Yuan Hsu ,  Chiu-Ping Wu ,  Yu-Han Kao

IPC: H04L27/06 ,  H04B7/0413 ,  H04L27/38 ,  H03M1/12 ,  H03M1/00

CPC classification number: H04B7/0413 ,  H03M1/002 ,  H03M1/12 ,  H03M1/122 ,  H03M1/20 ,  H04L25/0202 ,  H04L27/38

Abstract: The present disclosure discloses a receiver device, including receiving antennas, radio frequency receivers, a configurable precision analog-to-digital converter, a switch device, a baseband processor, and an analog-to-digital controller. The switch device converts a first number of baseband analog signals into a second number of baseband analog signals. The configurable precision analog-to-digital converter converts the second number of baseband analog signals into a third number of first baseband digital signals. The configurable precision analog-to-digital converter combines at least two of first analog-to-digital converters into at least one second analog-to-digital converter so that the total number of the rest of the first analog-to-digital converters and the at least one second analog-to-digital converters is equal to the third number. The resolution of each of the second analog-to-digital converters is higher than the resolution of each of the first analog-to-digital converters.

公开(公告)号：US10312953B2

公开(公告)日：2019-06-04

申请号：US15390543

申请日：2016-12-26

Applicant: Industrial Technology Research Institute

Inventor： Chao-Kai Wen ,  Chang-Jen Wang ,  Jing-Shiun Lin ,  Jen-Yuan Hsu ,  Dung-Rung Hsieh ,  Chiu-Ping Wu

IPC: H04B7/0417 ,  H04B1/10 ,  H03M1/06 ,  H03M1/08 ,  H04L1/00 ,  H04L27/26 ,  H04L25/02 ,  H03M1/66

Abstract: The disclosure is directed to an OFDM receiver with a low-resolution ADC and an electronic device thereof. According to one of the exemplary embodiments, the OFDM receiver may include not limited to: an ADC module which receives a transmission signal of a channel in an analog format and digitizes the transmission signal into a digital format to generate a quantized transmission signal; an error compensating and estimating module which is coupled to the ADC module, receives the quantized transmission signal and a feedback signal which is a first estimated time-domain transmission signal to generate an estimated error signal according to a turbo iterative updating technique; and a signal estimating module which is coupled to the error compensating and estimating module, receives the estimated error signal and a channel attenuation coefficient of the channel to generate an estimated transmission signal.

公开(公告)号：US10291335B1

公开(公告)日：2019-05-14

申请号：US15855765

申请日：2017-12-27

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chao-Kai Wen ,  Chang-Jen Wang ,  Jung-Chieh Chen

IPC: H04B17/12 ,  H04B7/06

Abstract: The beamforming calibration system includes a transmitter, a receiver, and a computing device. The transmitter includes multiple transmitting antennas. The computing device provides multiple phase sets to the transmitter. When the computing device provides a first phase set among the phase sets to the transmitter: the transmitter uses the first phase set to set phases of the transmitting antennas, the receiver receives wireless transmission signal from the transmitting antennas to obtain a first radiation pattern corresponding to the first phase set, and the computing device is configured to compare the first radiation pattern with a predetermined pattern to calculate a pattern similarity score corresponding to the first phase set. The computing device selects a calibration phase set among the phase sets according to the pattern similarity score of each phase set, and provides the calibration phase set to the transmitter to calibrate beamforming.

公开(公告)号：US20180183472A1

公开(公告)日：2018-06-28

申请号：US15390543

申请日：2016-12-26

Applicant: Industrial Technology Research Institute

Inventor： Chao-Kai Wen ,  Chang-Jen Wang ,  Jing-Shiun Lin ,  Jen-Yuan Hsu ,  Dung-Rung Hsieh ,  Chiu-Ping Wu

IPC: H04B1/10 ,  H04L25/02 ,  H04B7/04 ,  H04L1/00 ,  H03M1/06

CPC classification number: H04B1/1027 ,  H03M1/06 ,  H03M1/0854 ,  H03M1/66 ,  H04B7/0417 ,  H04L1/0054 ,  H04L25/0256 ,  H04L25/0258 ,  H04L27/2647

Abstract: The disclosure is directed to an OFDM receiver with a low-resolution ADC and an electronic device thereof. According to one of the exemplary embodiments, the OFDM receiver may include not limited to: an ADC module which receives a transmission signal of a channel in an analog format and digitizes the transmission signal into a digital format to generate a quantized transmission signal; an error compensating and estimating module which is coupled to the ADC module, receives the quantized transmission signal and a feedback signal which is a first estimated time-domain transmission signal to generate an estimated error signal according to a turbo iterative updating technique; and a signal estimating module which is coupled to the error compensating and estimating module, receives the estimated error signal and a channel attenuation coefficient of the channel to generate an estimated transmission signal.