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公开(公告)号：US11070261B2
公开(公告)日：2021-07-20
申请号：US16096189
申请日：2017-04-26
发明人： Myoungwon Lee , Myonghee Park , Keonwook Lee
IPC分类号： H04B7/06 , H04L25/02 , H04L5/00 , H04B7/0417 , H04B7/0456
摘要： The present invention relates to a method and a device for beamforming, and, more particularly, to a method and a device for transmitting a downlink signal by using a two-dimensional active array antenna in a wireless communication system. In order to achieve the objective mentioned above, a beamforming method by a base station in a mobile communication system, according to one embodiment of the present invention, comprises the steps of: receiving an uplink signal from at least one terminal; determining directivity information of a vertical channel of a downlink for the at least one terminal on the basis of the uplink signal; and performing resource scheduling and beamforming for the at least one terminal on the basis of the directivity information of the vertical channel of the downlink and channel status information in a horizontal direction received from the at least one terminal. According to an embodiment of the present invention, since a base station can estimate vertical channel information by using an uplink signal, it is possible to provide three-dimensional beamforming to terminals even without receiving the vertical channel information directly from the terminals, and thus the signal quality of each user can be improved and the efficiency of spatial multiplexing in a cell can be increased to thereby increase the total network capacity.
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公开(公告)号：US10973072B2
公开(公告)日：2021-04-06
申请号：US16250973
申请日：2019-01-17
发明人： Jaewon Kang , Hojoong Kwon , Myungkwang Byun , Daekyu Shin , Seungjoo Maeng , June Moon , Myonghee Park , Kiseob Hong
摘要： The disclosure relates to a 5G or pre-5G communication system for supporting higher data transmission rates than 4G communication systems such as LTE systems. According to the disclosure, a method for performing beamforming by a base station in a wireless communication system comprises obtaining transmission time proportions allocated to a plurality of beam directions and performing beamforming to send control information in the plurality of beam directions based on the obtained transmission time proportions. A base station configured to perform beamforming in a wireless communication system, includes a transceiver configured to perform beamforming communication with a UE, and a processor configured to obtain transmission time proportions allocated to each of a plurality of beam directions, and control beamforming for sending control information based on the obtained transmission time proportions.
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公开(公告)号：US11343716B2
公开(公告)日：2022-05-24
申请号：US15733339
申请日：2019-01-02
发明人： Chanho An , Seungjoo Maeng , Myonghee Park , Myoungwon Lee , Jinhyuk Lee , Seunghee Han
摘要： Provided are a base station which processes a plurality of cells in a wireless communication system and an operation method of the base station. The operation method of the base station which processes a plurality of cells includes pooling a processing power of a first processor that processes a signal of a first cell and a processing power of a second processor that processes a signal of a second cell, and distributing the processing powers to the first processor and the second processor and processing, by the first processor and the second processor, the signal of the first cell and the signal of the second cell by using the distributed processing powers.
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公开(公告)号：US10193582B2
公开(公告)日：2019-01-29
申请号：US15565576
申请日：2016-04-08
发明人： Neung Hyung Lee , Ik-Beom Lee , Seungjoo Maeng , Myonghee Park
IPC分类号： H04B1/10 , H04B15/02 , H04B1/7097 , H04W28/02 , H04B17/327 , H04B17/336 , H04L25/02 , H04W72/12
摘要： 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 of operating a base station for interference cancellation in a wireless communication system is provided. The method may include receiving, from a target terminal, an uplink data signal including at least one interference signal generated by at least one interference terminal; performing a primary decoding for the uplink data signal; in accordance with decoding errors, generating a cancelling signal corresponding to an interference signal of the at least one interference terminal; performing a cancellation by applying the cancelling signal to the uplink data signal; and performing a secondary decoding for the uplink data signal to which the cancelling signal has been applied.
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