-
公开(公告)号：US10039011B2
公开(公告)日：2018-07-31
申请号：US14951649
申请日：2015-11-25
Inventor： Seungjae Bahng , Gosan Noh , Youn Ok Park , Hoon Lee
CPC classification number: H04W16/28 , H04B7/0617 , H04B7/10
Abstract: The polarization beamforming communication apparatus of a base station estimates an azimuth, elevation, and polarization of each of terminals using a reference signal of a terminal received through a plurality of dual polarization antennas, determines a stream to be transmitted based on the azimuth, elevation, and polarization of the terminal, and sends the stream to be transmitted to the terminal through a polarization-matched beam formed in accordance with each of the plurality of dual polarization antennas using the azimuth, elevation, and polarization of the terminal.
-
2.发明授权公开(公告)号：US10547338B2
公开(公告)日：2020-01-28
申请号：US15581158
申请日：2017-04-28
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION SUNMOON UNIVERSITY
Inventor： Gosan Noh , Changyong Shin
Abstract: A method and an apparatus for acquiring channel information in a polarization division duplex system. An uplink signal transmitted from a terminal is received, the uplink signal indicating that a null subcarrier is disposed in a first subcarrier overlapped with a second subcarrier including a downlink pilot signal, and a self-interference channel is estimated by using a signal received from the null subcarrier. A signal corresponding to the null subcarrier from the uplink signal is removed, and channel information is acquired by estimating the uplink channel based on estimation results of the self-interference channel and a pilot signal included in the uplink signal from which the null subcarrier is removed.
-
Patent Agency Ranking
公开(公告)号：US10609736B2
公开(公告)日：2020-03-31
申请号：US15934140
申请日：2018-03-23
Inventor： Bing Hui , Il Gyu Kim , Junhyeong Kim , Gosan Noh , Hee Sang Chung , Sung Woo Choi
Abstract: A method and an apparatus for transmitting a message used to access a base station (BS) in a random access (RA) procedure by user equipment (UE) are provided. The method includes: determining a first RA preamble resource corresponding to an SSB index which corresponds to a transmission beam among a plurality of transmission beams of BS; and transmitting a message 1 of the RA procedure by using a first RA preamble format which includes the first RA preamble resource and at least one second RA preamble resource which neighbors the first RA preamble resource.
-
公开(公告)号：US10117190B2
公开(公告)日：2018-10-30
申请号：US15628754
申请日：2017-06-21
Inventor： Gosan Noh , Yeong Jin Kim , Il Gyu Kim
Abstract: In a wireless communication system in which a plurality of base stations each forming a directional beam in one direction are disposed along a predetermined path, each base station estimates a distance from installed in a mobile body moving along the path if the TE enters a cell area of the corresponding base station; and controls the transmission power using a distance from the estimated TE so that a difference between received signal strength of the corresponding base station and the received signal strength of neighboring base stations measured by the TE in a cell boundary area between the base stations does not exceed a predetermined threshold value.
-
公开(公告)号：US11368894B2
公开(公告)日：2022-06-21
申请号：US16633527
申请日：2018-07-24
Inventor： Bing Hui , Il Gyu Kim , Junhyeong Kim , Gosan Noh , Hee Sang Chung , Sung Woo Choi
Abstract: Provided are a method and a device for triggering a beam failure recovery (BFR) procedure of a multibeam system by means of the steps of: detecting a beam failure by monitoring a wireless link connected with a base station; identifying a candidate transmission beam of the base station; and transmitting a BFR request to the base station when the candidate transmission beam of the base station is identified.
-
公开(公告)号：US10827530B2
公开(公告)日：2020-11-03
申请号：US15971301
申请日：2018-05-04
Inventor： Bing Hui , Il Gyu Kim , Junhyeong Kim , Gosan Noh , Hee Sang Chung , Sung Woo Choi
Abstract: A method for transmitting and receiving a message for a random access (RA) between user equipment (UE) and a base station in a multi beam system includes: transmitting a synchronization signal (SS) block including a synchronization signal by performing beam sweeping for a multi beam; receiving a message 1 of an RA procedure from the UE; determining an optimal transmission beam to be used to transmit a message 2 of the RA procedure based on information about an association mapping between the SS block and a physical random access channel (PRACH) which is used to transmit the message 1; and transmitting the message 2 by using the optimal transmission beam.
-
公开(公告)号：US10820355B2
公开(公告)日：2020-10-27
申请号：US15934320
申请日：2018-03-23
Inventor： Bing Hui , Il Gyu Kim , Junhyeong Kim , Gosan Noh , Hee Sang Chung , Sung Woo Choi
Abstract: A method and an apparatus for random access in a mobile communication system are provided. A terminal receives a synchronization signal block, obtains beam index information from the received synchronization signal block, and transmits a preamble message occupying a plurality of preamble resources including a preamble resource corresponding to the beam index information to a base station. A random access resource includes a plurality of preamble resources, and the synchronization signal block is specified for one beam and corresponds to one preamble resource of the random access resource.
-
-
-
-
-
-
Search Results
7
records
(took 0.014 seconds)
