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Patent Agency Ranking
1.发明申请公开(公告)号：US20180269934A1
公开(公告)日：2018-09-20
申请号：US15532943
申请日：2015-12-02
Inventor： Jae-Won Kim , Yong-Hun Lee , Min-Hyun Kim , Jun-Ho Lee
IPC: H04B7/0417 , H04B7/0408 , H04L25/02 , H04B7/06 , H04W72/04
Abstract: The present invention relates to a 5th-generation (5G) or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4th-generation (4G) communication system, such as long term evolution (LTE), and subsequent systems. The present invention provides a method by which a mobile station (MS) operates a beam in a communication system supporting a hybrid multiple-input multiple-output (MIMO) mode, the method comprising the steps of: receiving, from a base station (BS), information related to the number of beams to be used, by the BS, for a beam training process; receiving, from the BS, a downlink reference signal (RS); performing a channel estimation process on the basis of the downlink RS; and transmitting, to the BS, information related to the number of beams to be used by the MS, after performing the channel estimation process.
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公开(公告)号：US11999354B2
公开(公告)日：2024-06-04
申请号：US17186329
申请日：2021-02-26
Inventor： Sei-Bum Choi , Min-Hyun Kim , Jin-Rak Park , Seung-In Shin , Jong-Chan Park
IPC: B60W40/06 , B60W40/068 , G01S15/88 , G06F18/213 , G06F18/2415 , G06V10/82 , G06V20/56
CPC classification number: B60W40/068 , G01S15/88 , G06F18/213 , G06F18/2415 , G06V10/82 , G06V20/56
Abstract: The present invention relates to a method and apparatus for estimating a road surface type by using an ultrasonic signal and, more particularly, to a method for estimating a road surface type by using an artificial neural network model machine-learned with respect to a reflected ultrasonic signal and an apparatus for performing same. According to the present invention, provided are a method and apparatus for providing highly accurate road surface information at low cost, by machine-learning both characteristics of an ultrasonic signal reflected from a road surface and a road surface state, establishing a model between the two, and then estimating the type of the road surface by utilizing the model. In particular, even a road surface where thin ice, that is, black ice, is formed, which was not detectable in the conventional method for estimating a road-surface friction coefficient, may be accurately estimated, thereby contributing to safer driving.
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3.发明授权Apparatus and method for operating analog beam in a beam division multiple access system 有权在光束分割多址系统中操作模拟波束的装置和方法公开(公告)号：US09450720B2
公开(公告)日：2016-09-20
申请号：US14304198
申请日：2014-06-13
Inventor： Jeong-Ho Park , Yong Hoon Lee , Min-Hyun Kim , Seong-Jin Kim , Hyun-Jeong Kang
CPC classification number: H04L5/0037 , H04B7/086 , H04B7/2643 , H04L5/0023 , H04W72/046
Abstract: A method and apparatus for operating an analog beam is provided. The apparatus includes a hybrid beam-forming structure having a small number of digital chains provided in a digital stage and a signal is transmitted and received in a Time Division Multiple Access (TDMA) scheme. The apparatus includes an analog beam-forming operating unit configured to change the analog beam for a counterpart device for which use of a next frame is to be permitted, upon receiving a request for using the next frame from at least one of multiple devices that transmit and receive signals in units of frames and a communication unit configured to transmit information indicating that the analog beam is changed to permit the use of the next frame by the counterpart device to the multiple devices.
Abstract translation: 提供了一种用于操作模拟光束的方法和装置。 该装置包括具有在数字级中提供的少量数字链的混合波束形成结构，并且以时分多址（TDMA）方案发送和接收信号。 该装置包括：模拟波束形成操作单元，被配置为在从发送的多个设备中的至少一个接收到使用下一帧的请求时，改变用于下一帧的允许的对方设备的模拟波束 并以帧为单位接收信号，通信单元被配置为发送指示模拟波束被改变的信息，以允许对方设备使用下一帧到多个设备。
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公开(公告)号：US10516448B2
公开(公告)日：2019-12-24
申请号：US15532943
申请日：2015-12-02
Inventor： Jae-Won Kim , Yong-Hun Lee , Min-Hyun Kim , Jun-Ho Lee
IPC: H04B7/0408 , H04B7/0417 , H04B7/06 , H04L25/02 , H04W72/04 , H04W16/28 , H04B7/08
Abstract: The present invention relates to a 5th-generation (5G) or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4th-generation (4G) communication system, such as long term evolution (LTE), and subsequent systems. The present invention provides a method by which a mobile station (MS) operates a beam in a communication system supporting a hybrid multiple-input multiple-output (MIMO) mode, the method comprising the steps of: receiving, from a base station (BS), information related to the number of beams to be used, by the BS, for a beam training process; receiving, from the BS, a downlink reference signal (RS); performing a channel estimation process on the basis of the downlink RS; and transmitting, to the BS, information related to the number of beams to be used by the MS, after performing the channel estimation process.
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公开(公告)号：US20210182632A1
公开(公告)日：2021-06-17
申请号：US17186329
申请日：2021-02-26
Inventor： Sei-Bum CHOI , Min-Hyun Kim , Jin-Rak Park , Seung-In Shin , Jong-Chan Park
Abstract: The present invention relates to a method and apparatus for estimating a road surface type by using an ultrasonic signal and, more particularly, to a method for estimating a road surface type by using an artificial neural network model machine-learned with respect to a reflected ultrasonic signal and an apparatus for performing same. According to the present invention, provided are a method and apparatus for providing highly accurate road surface information at low cost, by machine-learning both characteristics of an ultrasonic signal reflected from a road surface and a road surface state, establishing a model between the two, and then estimating the type of the road surface by utilizing the model. In particular, even a road surface where thin ice, that is, black ice, is formed, which was not detectable in the conventional method for estimating a road-surface friction coefficient, may be accurately estimated, thereby contributing to safer driving.
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