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公开(公告)号：US20220399944A1
公开(公告)日：2022-12-15
申请号：US17890091
申请日：2022-08-17
Inventor： Hyunchul PARK , Ho-Jin SONG , Seunguk CHOI , Yonghoon KIM , Donggyu MINN , Yuichi AOKI
Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). An electronic device, in a wireless communication system, may include: a processor, an antenna array, a plurality of first radio frequency (RF) paths related to a first stream, the first RF paths each including a transmit (TX) path and a receive (RX) path, and a plurality of second RF paths related to a second stream, the second RF paths each including a TX path and an RX path, and the processor may be configured to: generate a calibration signal for the antenna array, obtain characteristic information of the antenna array based on a phase difference or a gain difference between one TX path having the first stream and one RX path having the second stream obtained for each of measurement RF paths among the plurality of the first RF paths, and calibrate the plurality of the first RF paths based on the characteristic information.
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公开(公告)号：US20210021353A1
公开(公告)日：2021-01-21
申请号：US16933190
申请日：2020-07-20
Applicant: Samsung Electronics Co., Ltd.
Inventor： Tuan Manh DAO , Yuichi AOKI , Yonghoon KIM
Abstract: The disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). A method of operating an electronic device in a wireless communication system is provided. The method includes inputting training signals into a first loopback route and a second loopback route, determining a loopback gain and a loopback phase, based on a first training signal passing through the first loopback route and a second training signal passing through the second loopback route, determining a frequency domain compensation filter, based on the loopback gain and the loopback phase, determining an FIR filter and a DC offset, based on the frequency domain compensation filter, and compensating for a transmission signal and a reception signal, based on the FIR filter and the DC offset.
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公开(公告)号：US20190386869A1
公开(公告)日：2019-12-19
申请号：US16445774
申请日：2019-06-19
Applicant: Samsung Electronics Co., Ltd.
Inventor： Tuan Manh DAO , Kihong MIN , Yonghoon KIM , Yuichi AOKI
Abstract: Method of operating electronic device including transmitter and receiver in wireless communication system and the electronic device are provided. The method includes acquiring signal passing through intermediate path between transmitter and receiver; estimating phase change in intermediate path, based on the signal and a reception signal predicted by a modeled system; and determining in-phase/quadrature (I/Q) mismatch parameters indicating a mismatch of I components and Q components of the transmitter and the receiver from the phase change. The electronic device includes a transmitter; a receiver; and at least one processor, configured to acquire a signal passing through an intermediate path between the transmitter and the receiver, estimate a phase change in the intermediate path, based on the signal and a reception signal predicted by a modeled system, and determine I/Q mismatch parameters indicating a mismatch of I components and Q components of the transmitter and the receiver from the phase change.
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公开(公告)号：US20210050874A1
公开(公告)日：2021-02-18
申请号：US16965499
申请日：2019-01-10
Applicant: Samsung Electronics Co., Ltd.
Inventor： Tuan Manh DAO , Yonghoon KIM , Yuichi AOKI
Abstract: Provided are a radio frequency (RF) signal transmission apparatus and a control method of the RF signal transmission apparatus, in which a local oscillator (LO) leakage signal may be suppressed. The RF signal transmission apparatus may perform beamforming to form a beam based on a plurality of RF signals generated in a plurality of transmission chains, measure magnitude of an LO leakage signal of the beam formed by performing beamforming, and generate an LO leakage suppression signal based on the magnitude of the LO leakage signal.
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Patent Agency Ranking
公开(公告)号：US20200228211A1
公开(公告)日：2020-07-16
申请号：US16641207
申请日：2017-12-15
Applicant: Samsung Electronics Co., Ltd
Inventor： Manh-Tuan DAO , Yonghoon KIM , Yuichi AOKI
Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as long-term evolution (LTE). The present disclosure provides a device and a method for calibrating a phased array antenna. A method for calibrating a phased array antenna according to various embodiments of the disclosure comprises the processes of: controlling a first radio frequency (RF) chain so as to transmit a first signal at a first phase, thereby determining the phase difference between the first phase and a reference phase; controlling the first RF chain so as to transmit a second signal at a second phase, thereby determining the phase condition of the phase difference; and calibrating the first RF chain on the basis of the phase difference and the phase condition. The reference phase may be the phase of a reference signal transmitted from a reference RF chain. Accordingly, the time necessary for calibration may be reduced, and mass production of phased array antennas may be facilitated. The present research has been financed by the Korean government (Ministry of Science and ICT) in 2017 and conducted with the support of “Intra-ministry Giga Korean Project” (No. GK17N0100, Millimeter-wave 5G Mobile Communication System Development).
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公开(公告)号：US20230378985A1
公开(公告)日：2023-11-23
申请号：US18230899
申请日：2023-08-07
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yuichi AOKI , Heedo KANG , Yonghoon KIM , Wonki KIM
CPC classification number: H04B1/0475 , H04B1/0028 , H04B2001/0425
Abstract: A communication device includes a transmitter that, in a first operation, distorts an input signal through a digital predistortion unit, converts the distorted input signal into an analog signal, performs frequency up-conversion on the converted analog signal to generate a first signal, amplifies the generated first signal through a power amplifier, and couples the amplified first signal; a receiver that, in the first operation, receives the coupled first signal from the transmitter, performs frequency down-conversion on the coupled first signal so as to generate a second signal, and converts the generated second signal into a digital signal through one or more analog-to-digital converters that are turned on, among a plurality of analog-to-digital converters; and a processor that, in the first operation, causes one or more of the plurality of analog-to-digital converters to be turned on and a remainder of the plurality of analog-to-digital converters to be turned off.
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公开(公告)号：US20230031668A1
公开(公告)日：2023-02-02
申请号：US17758494
申请日：2021-01-08
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yuichi AOKI , Tuan Manh DAO , Daehyun KANG , Yonghoon KIM , Yongan HWANG
Abstract: The present disclosure relates to a communication technique for merging, with an IoT technology, a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security- and safety-related services, and the like) on the basis of a 5G communication technology and an IoT-related technology. The present disclosure discloses a method for calibration of a phased array antenna.
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8.发明申请公开(公告)号：US20200344697A1
公开(公告)日：2020-10-29
申请号：US16757009
申请日：2018-05-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yuichi AOKI
Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for operating a terminal in a wireless communication system may comprise the steps of: receiving a first signal by using a first number of antennas during a first downlink interval; receiving a second signal by using a second number of antennas during a second downlink interval; and transmitting a third signal by using the second number of antennas during an uplink interval, with output power compensated on the basis of the first signal and the second signal.
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公开(公告)号：US20200036454A1
公开(公告)日：2020-01-30
申请号：US16521939
申请日：2019-07-25
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yuichi AOKI
Abstract: An apparatus and method are provided for a communication scheme for converging a 5G communication system for supporting a higher data transfer rate than a post-4G system with the IoT technology. A method includes configuring a loopback path between a transmitter and a receiver; transmitting a preconfigured signal from the transmitter to the receiver through the loopback path; identifying an image signal, wherein the image signal includes a distorted signal of the preconfigured signal; determining a gain error value and a phase error value based on the preconfigured signal and the image signal; and performing I/Q calibration based on the gain error value and the phase error value. A subcarrier in which the preconfigured signal is transmitted and a subcarrier in which the image signal is generated do not overlap.
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