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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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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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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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