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公开(公告)号：US20220239363A1
公开(公告)日：2022-07-28
申请号：US17688333
申请日：2022-03-07
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yohan KIM , Chulhee JANG , Eunyong KIM
Abstract: A method performed by a user equipment (UE) in a wireless communication system includes transmitting a UE capability information message to a base station, the UE capability information message including information for indicating that a multi-beam operation for multi-transmission and reception point (TRP) is supported and information for indicating that a simultaneous reception for different beams is supported, receiving a first control signal for first data on a first physical downlink control channel (PDCCH) associated with a first TRP, the first control signal transmitted by using a primary beam, and receiving second control signal for second data on a second PDCCH associated with a second TRP, the second control signal transmitted by using a secondary beam. The first data and the second data are received in same time resources.
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2.发明申请公开(公告)号：US20180317240A1
公开(公告)日：2018-11-01
申请号：US15774102
申请日：2016-11-11
Applicant: Samsung Electronics Co., Ltd.
Inventor： Chulhee JANG , Eunyong KIM , Eunhyun KWON , Seungjoo MAENG
CPC classification number: H04W72/12 , H04L1/1854 , H04L5/001 , H04L2001/0097 , H04W72/0446 , H04W88/08
Abstract: The present invention relates to a method for transmitting data by a base station in a wireless communication system supporting carrier aggregation, comprising the steps of: confirming whether a condition for data transmission distribution is satisfied; if the condition is satisfied, determining respective radio link control (RLC) data to be allocated to the base station and another base station, and sequence numbers for the RLC data; and transmitting the RLC data allocated to the other base station and the sequence numbers. However, the present invention is not limited to the embodiment above and other embodiments are possible.
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公开(公告)号：US20230336224A1
公开(公告)日：2023-10-19
申请号：US18141812
申请日：2023-05-01
Inventor： Yongyun CHOI , Chulhee JANG , Junil CHOI , Sucheol KIM , Hyeongtaek LEE , Hwanjin KIM
IPC: H04B7/06 , H04B7/0456 , H04B7/0426
CPC classification number: H04B7/0617 , H04B7/0639 , H04B7/0456 , H04B7/0426
Abstract: A method performed by a base station in a wireless communication system, includes: determining, from among a plurality of antennas of the base station, a first antenna that meets a power threshold, based on a first beamformer scaled according to a power limit; generating a second beamformer corresponding to the first antenna; applying an overlap coefficient matrix to the second beamformer; generating a third beamformer by combining the second beamformer to which the overlap coefficient matrix has been applied and the first beamformer; and transmitting a signal using the third beamformer.
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4.发明申请公开(公告)号：US20220224388A1
公开(公告)日：2022-07-14
申请号：US17703379
申请日：2022-03-24
Inventor： Yongyun CHOI , Chulhee JANG , Hyeongtaek LEE , Junil CHOI , Hwanjin KIM
Abstract: The disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data rate after a 4th generation (4G) communication systems such as long term evolution (LTE). The disclosure is for reconstructing a downlink channel in a wireless communication system. An operation method for a base station is provided. The operation method includes the steps of transmitting downlink reference signals (RSs) to a terminal, receiving an indication of a first channel matrix estimated by the terminal and at least one uplink RS; estimating a second channel matrix on the basis of the at least one uplink RS, and on the basis of the first channel matrix and the second channel matrix, reconstructing channel information to be used for data transmission.
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Patent Agency Ranking
公开(公告)号：US20210036759A1
公开(公告)日：2021-02-04
申请号：US17074005
申请日：2020-10-19
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yohan KIM , Chulhee JANG , Eunyong KIM
Abstract: The 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). In a wireless communication system, a base station apparatus may include at least one transceiver, and at least one processor operatively coupled with the at least one transceiver. The at least one transceiver may transmit, to a terminal, configuration information associated with a primary beam and a secondary beam. The processor may determine the primary beam and the secondary beam based on feedback information regarding beams of the base station, received from the terminal. The at least one transceiver may be configured to transmit, to the terminal, indication information for identifying the primary beam and the secondary beam, perform communication with the terminal by using the primary beam, and perform communication with the terminal by using the primary beam and the secondary beam based on a determination of a change of a communication state for the primary beam.
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6.发明公开公开(公告)号：US20230198810A1
公开(公告)日：2023-06-22
申请号：US17919425
申请日：2021-04-16
Inventor： Yongyun CHOI , Hwanjin KIM , Chulhee JANG , Junil CHOI
CPC classification number: H04L25/0204 , H04L25/0222 , H04W64/006
Abstract: Disclosed is a method for estimating a channel of a terminal by a base station in a wireless communication system supporting multiple antennas, the method comprising the steps of: estimating a moving speed of the terminal on the basis of a first channel value acquired at a current time point and a second channel value acquired at a previous time point; determining, on the basis of the estimated moving speed, a complexity degree corresponding to the number of channel values for multiple time points including the current time point; and estimating a channel of the terminal at a next time point on the basis of the determined complexity degree.
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公开(公告)号：US20190386727A1
公开(公告)日：2019-12-19
申请号：US16441990
申请日：2019-06-14
Inventor： Younghyun JEON , Namyoon LEE , Eunyong KIM , Chulhee JANG , Jiwook CHOI , Yunseo NAM
Abstract: The 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 operating method of a base station in a wireless communication system is provided. The operating method includes estimating a channel for each of a plurality of terminals based on reference signals received from the plurality of the terminals, determining a beamforming vector matrix for each of the plurality of the terminals by considering scheduling and power allocation information based on the estimated channels, and transmitting data to at least one of the plurality of the terminals using the determined beamforming vector matrix.
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8.发明申请公开(公告)号：US20190037457A1
公开(公告)日：2019-01-31
申请号：US16072300
申请日：2017-01-17
Applicant: Samsung Electronics Co., Ltd.
Inventor： Chulhee JANG , Soenghun KIM , Eunyong KIM , Hwajin CHA
CPC classification number: H04W36/02 , H04L1/1621 , H04W36/0005 , H04W36/08 , H04W36/38 , H04W74/08 , H04W74/0833 , H04W80/08 , H04W88/02 , H04W88/08
Abstract: To solve the problem wherein a terminal cannot perform data communication from a network from the time point of a terminal receiving a handover command (HO command) message from a base station controlling a source cell to the time point of a terminal receiving a handover complete (HO complete) message from a base station controlling a target cell, after the terminal transmits the handover command message to the base station controlling the source cell, the base station controlling the source cell transmits to the base station controlling the target cell whether or not the terminal supports a function of reducing the interruption time of data transfer, the terminal continues to perform data transmission/reception with the base station controlling the source cell, and after the terminal completes a random access procedure with the base station controlling the target cell, the base station controlling the source cell transmits an additional sequence number status transfer message to the base station controlling the target cell.
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公开(公告)号：US20180152899A1
公开(公告)日：2018-05-31
申请号：US15822031
申请日：2017-11-24
Applicant: Samsung Electronics Co., Ltd.
Inventor： Chulhee JANG , Eunyong KIM , Joseph JEON
Abstract: The present 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). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A transmission control method and a central management apparatus for performing the method are provided. The method includes receiving transmission control-related information from a base station, determining transmission power of at least one base station and the transmission point of a user equipment based on the transmission control-related information, and transmitting information about the determined transmission power and transmission point of the user equipment to the at least one base station. Furthermore, a base station adjusting transmission power and an operation method of the base station may be controlled under the control of the central management apparatus.
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