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1.发明申请公开(公告)号：US20190104552A1
公开(公告)日：2019-04-04
申请号：US16128568
申请日：2018-09-12
Inventor： Bing HUI , Il Gyu KIM , Jun Hyeong KIM , Go San NOH , Hee Sang CHUNG , Sung Woo CHOI
Abstract: A method of performing, by a device, a random access procedure in a radio communication system includes: receiving from a base station RACH configuration information; and transmitting a first message based on the received RACH configuration information. Herein, a plurality of SSBs may be in association with a plurality of preambles, and the first message may be transmitted in a time domain through a plurality of RACH resources.
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2.发明申请公开(公告)号：US20170339575A1
公开(公告)日：2017-11-23
申请号：US15595037
申请日：2017-05-15
Inventor： Junhyeong KIM , Bing HUI , Il Gyu KIM , Hoon LEE , Hyun Kyu CHUNG
CPC classification number: H04W16/28 , G01S3/14 , G01S5/0054 , H04W64/006
Abstract: An apparatus and method for beam-forming communication in a mobile wireless backhaul network. The apparatus included in a base station includes: an antenna unit radiating a beam according to predetermined beam characteristics and transmitting a signal of the base station to a mobile terminal in a high speed moving body; a position searching unit detecting a distance, a speed, and a direction of movement between the base station and the mobile terminal; a beam setting unit grouping one or more beams according to the detected distance between the base station and the mobile terminal and setting the number of beam search groups in which a beam search is to be performed and a beam search period according to the detected speed and direction of movement; and a beam searching unit searching for the beam of the mobile terminal based on beam setting values set by the beam setting unit.
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公开(公告)号：US20180359712A1
公开(公告)日：2018-12-13
申请号：US16005920
申请日：2018-06-12
Inventor： Bing HUI , Il Gyu KIM , Junhyeong KIM , Gosan NOH , Hee Sang CHUNG , Sung Woo CHOI
CPC classification number: H04W52/362 , H04B7/0617 , H04B7/0695 , H04W52/42 , H04W52/48 , H04W52/50 , H04W72/0473 , H04W74/0833
Abstract: A method and user equipment for transmitting a message of a random access procedure in a multi-beam system includes: transmitting and retransmitting a message 1 of the RA procedure through a first beam of a plurality of transmission beams of the UE based on power ramping; and retransmitting, if one or more Msg. 2 (RAR) is not successfully received corresponding to the message 1 transmission/retransmission, the message 1 through a second beam of the plurality of transmission beams after switching the first beam to the second beam at a second power level which is the same as or higher than a first power level of the first beam.
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公开(公告)号：US20180279387A1
公开(公告)日：2018-09-27
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
CPC classification number: H04W74/0891 , H04L5/0007 , H04L5/0053 , H04L27/261 , H04W4/70 , H04W16/28 , H04W74/002 , H04W74/0833 , H04W88/02 , H04W88/08
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.
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公开(公告)号：US20170310528A1
公开(公告)日：2017-10-26
申请号：US15493870
申请日：2017-04-21
Inventor： Bing HUI , Junhyeong KIM , IL GYU KIM , Hoon LEE , Hee Sang CHUNG , Sung woo CHOI
IPC: H04L27/34
CPC classification number: H04L27/3488 , H04L27/3433
Abstract: A transmitting apparatus for modulating data based on a predetermined 2q-QAM constellation and a receiving apparatus and method for demodulating a signal based on the predetermined 2q-QAM constellation, wherein the last q-2 bits corresponding to a quadrant of the predetermined 2q-QAM constellation are same with a gray code of a 2q-2-QAM constellation, the last q-2 bits corresponding to the remaining quadrants of the predetermined 2q-QAM constellation are determined by performing symmetric transformation for the last q-2 bits of the quadrant of the predetermined 2q-QAM around the x-axis or the y-axis.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20190159259A1
公开(公告)日：2019-05-23
申请号：US16181448
申请日：2018-11-06
Inventor： Jun Hyeong KIM , Bing HUI , Il Gyu KIM , Go San NOH , Hee Sang CHUNG , Sung Woo CHOI
Abstract: An operation method of a terminal in a communication system includes receiving a message from a base station, the message including physical random access channel (PRACH) configuration information indicating a PRACH slot; determining a start symbol to which a PRACH is mapped among symbols constituting the PRACH slot based on a type of the PRACH slot; mapping the PRACH from the start symbol in the PRACH slot; and transmitting the PRACH mapped to the PRACH slot to the base station.
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公开(公告)号：US20180324865A1
公开(公告)日：2018-11-08
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.
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公开(公告)号：US20180131488A1
公开(公告)日：2018-05-10
申请号：US15798833
申请日：2017-10-31
Inventor： Gosan NOH , Il Gyu KIM , Bing HUI
CPC classification number: H04L5/0051 , H04L5/0048 , H04L5/0082 , H04L25/0202 , H04L25/0224 , H04L27/2601 , H04L27/2657 , H04L27/2675 , H04W72/0446
Abstract: A method of transmitting reference signals is provided by a transmitting apparatus in a wireless communication system. The transmitting apparatus transmits a first reference signal in a first time region of a resource block included in transmission duration. The transmitting apparatus transmits second reference signals scattered on two or more subcarriers in a second time region of the resource block. The second time region follows the first time domain and includes a plurality of symbols.
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9.发明申请公开(公告)号：US20170332418A1
公开(公告)日：2017-11-16
申请号：US15593501
申请日：2017-05-12
Inventor： Bing HUI , Junhyeong KIM , Yeong Jin KIM , Il Gyu KIM , Hee Sang CHUNG
CPC classification number: H04W48/18 , H04W36/00 , H04W36/16 , H04W76/10 , H04W76/30 , H04W84/005 , H04W88/085
Abstract: A radio unit (RU) in a directional communication network establishes a connection with a first antenna among two antennas of a first TE in a first moving object that first enters a serving duration of the RU according to a network access request from the first antenna, and when receiving the network access request from a second antenna among two antennas of a second TE in a second moving object that next enters the serving duration, the RU processes the network access request from the second antenna based on network access priority of the second antenna and network access priority of the first antenna to which the connection is established.
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公开(公告)号：US20180279364A1
公开(公告)日：2018-09-27
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
CPC classification number: H04W74/085 , H04B7/0695 , H04B7/088 , H04L5/0007 , H04W16/28 , H04W56/001 , H04W74/0833
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.
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