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Patent Agency Ranking
公开(公告)号：US11005548B2
公开(公告)日：2021-05-11
申请号：US16564938
申请日：2019-09-09
Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Inventor： Jia-Ming Chen , Hung-Fu Wei , Jyun-Wei Lai , Jen-Yuan Hsu
IPC: H04B7/02 , H04B7/06 , H04B7/0408 , H04B7/024 , H04L25/02
Abstract: A multi-antenna system includes: a server; a first antenna group, provided on a base station and including multiple first antennas including a first representative antenna and a first non-representative antenna, the base station performing intra-group channel estimation to obtain and transmit to the server multiple first inner channel estimation coefficients between the first representative antenna and the first non-representative antenna, and serving a user device; and a reference device, communicating with the server and the first antennas, performing channel estimation between the reference device and the first representative antenna to obtain and transmit to the server multiple first outer channel estimation coefficients between the reference device and the first representative antenna. The server calculates a precoding matrix according to the first inner and first outer channel estimation coefficients, and the base station performs data transmission with the user device according to the precoding matrix.
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公开(公告)号：US10707974B1
公开(公告)日：2020-07-07
申请号：US16600579
申请日：2019-10-14
Applicant: Industrial Technology Research Institute
Inventor： Jan-Shin Ho , Shih-Hao Fang , Jen-Yuan Hsu , Jia-Ming Chen
Abstract: The disclosure provides a transceiver of a communication system using hybrid beamforming and performing an antenna calibration method. In an exemplary embodiment in accordance with the disclosure, the transceiver may generate a plurality of scrambling sequences. The transceiver may comprise a plurality of coupling circuits to receive a feedback signal. The transceiver may use the plurality of scrambling sequences to recover the transmit signals output by the antenna elements from the feedback signal. Thus, the transmitter may perform antenna calibration for each antenna element.
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公开(公告)号：US10673475B1
公开(公告)日：2020-06-02
申请号：US16600574
申请日：2019-10-14
Applicant: Industrial Technology Research Institute
Inventor： Wei-Cheng Zhuo , Wei-Min Lai , Jia-Ming Chen , Jen-Yuan Hsu
Abstract: The disclosure provides a transmitter of a communication system using hybrid digital/analog beamforming and configured to perform digital pre-distortion (DPD). In an exemplary embodiment in accordance with the disclosure, the transmitter may generate a plurality of scrambling sequences. The transmitter may comprise a plurality of combining modules to receive a combined feedback signal. The transmitter may use the plurality of scrambling sequences to recover the signals output by the antenna arrays from the combined feedback signal. Thus, the transmitter may perform DPD for each antenna array.
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公开(公告)号：US20150003339A1
公开(公告)日：2015-01-01
申请号：US14144234
申请日：2013-12-30
Applicant: Industrial Technology Research Institute
Inventor： Jia-Ming Chen , Jia-Wei Liu , Ming-Chien Tseng , Shi-Yang Chen
IPC: H04W72/04
Abstract: The disclosure provides an electronic device including a coupler, a transceiver, and a control circuit. The coupler generates a coupled downlink signal according to a downlink signal from a head-end unit. The transceiver switches between the transmission of a downlink signal and the reception of an uplink signal according to a control signal. The control circuit receives the coupled downlink signal, generates a status counting signal according to the power status of the coupled downlink signal, and generates the control signal according to the status counting signal. Only when the level of the coupled downlink signal is lower than an amplitude threshold level with a duration longer than a status counting time, the control circuit converts the status counting signal from a first logic level to a second logic level opposite to the first logic level. Otherwise, the control circuit maintains the status counting signal on the first logic level.
Abstract translation: 本公开提供了一种包括耦合器，收发器和控制电路的电子设备。 耦合器根据来自头端单元的下行链路信号产生耦合的下行链路信号。 收发器根据控制信号在下行链路信号的发送和上行链路信号的接收之间切换。 控制电路接收耦合的下行链路信号，根据耦合的下行链路信号的电源状态产生状态计数信号，并根据状态计数信号产生控制信号。 只有当耦合下行链路信号的电平低于持续时间长于状态计数时间的幅度阈值电平时，控制电路将状态计数信号从第一逻辑电平转换到与第一逻辑电平相反的第二逻辑电平 。 否则，控制电路将状态计数信号保持在第一逻辑电平上。
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公开(公告)号：US09344141B2
公开(公告)日：2016-05-17
申请号：US14144234
申请日：2013-12-30
Applicant: Industrial Technology Research Institute
Inventor： Jia-Ming Chen , Jia-Wei Liu , Ming-Chien Tseng , Shi-Yang Chen
Abstract: The disclosure provides an electronic device including a coupler, a transceiver, and a control circuit. The coupler generates a coupled downlink signal according to a downlink signal from a head-end unit. The transceiver switches between the transmission of a downlink signal and the reception of an uplink signal according to a control signal. The control circuit receives the coupled downlink signal, generates a status counting signal according to the power status of the coupled downlink signal, and generates the control signal according to the status counting signal. Only when the level of the coupled downlink signal is lower than an amplitude threshold level with a duration longer than a status counting time, the control circuit converts the status counting signal from a first logic level to a second logic level opposite to the first logic level. Otherwise, the control circuit maintains the status counting signal on the first logic level.
Abstract translation: 本公开提供了一种包括耦合器，收发器和控制电路的电子设备。 耦合器根据来自头端单元的下行链路信号产生耦合的下行链路信号。 收发器根据控制信号在下行链路信号的发送和上行链路信号的接收之间切换。 控制电路接收耦合的下行链路信号，根据耦合的下行链路信号的电源状态产生状态计数信号，并根据状态计数信号产生控制信号。 只有当耦合下行链路信号的电平低于持续时间长于状态计数时间的幅度阈值电平时，控制电路将状态计数信号从第一逻辑电平转换到与第一逻辑电平相反的第二逻辑电平 。 否则，控制电路将状态计数信号保持在第一逻辑电平上。
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