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公开(公告)号：US10548168B2
公开(公告)日：2020-01-28
申请号：US15828328
申请日：2017-11-30
Inventor： Ji Soo Park , Kyung Yeol Sohn , Hoon Lee
Abstract: Disclosed are a random access method and a random access apparatus in a wireless communication system. An operation method of a terminal in a communication system, according to the present invention, comprises receiving system information including configuration information on a physical random access channel (PRACH) composed of a plurality of access slots from a first base station; selecting one access slot among the plurality of access slots based on the configuration information; and transmitting a random access preamble to the first base station through the one access slot. Therefore, the capacity of the random access channel can be increased without further occupation of radio resources.
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公开(公告)号：US20180220466A1
公开(公告)日：2018-08-02
申请号：US15828328
申请日：2017-11-30
Inventor： Ji Soo Park , Kyung Yeol Sohn , Hoon Lee
CPC classification number: H04W74/0833 , H04W72/0446 , H04W74/008 , H04W92/20
Abstract: Disclosed are a random access method and a random access apparatus in a wireless communication system. An operation method of a terminal in a communication system, according to the present invention, comprises receiving system information including configuration information on a physical random access channel (PRACH) composed of a plurality of access slots from a first base station; selecting one access slot among the plurality of access slots based on the configuration information; and transmitting a random access preamble to the first base station through the one access slot. Therefore, the capacity of the random access channel can be increased without further occupation of radio resources.
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3.发明授权公开(公告)号：US09641230B2
公开(公告)日：2017-05-02
申请号：US14984077
申请日：2015-12-30
Inventor： Ji Soo Park , Jun Woo Kim , Youn Ok Park , Seung Jae Bahng , Yong Su Lee
IPC: H04W72/00 , H04W72/08 , H04W72/04 , H04B7/0408
CPC classification number: H04B7/0408
Abstract: Disclosed is a base station transmitting multiple beams to multiple beam areas, including: a determination unit determining at least any one of whether a downlink control signal is transmitted through the multiple beams transmitted to the multiple beam areas and a transmission section; a generation unit generating signal transmitting control information including at least any one of whether the downlink control signal is transmitted, the transmission section of the downlink control signal, and derivation information to derive a change of an access beam for a terminal that accesses the multiple beams; a communication unit downlink-transmitting the signal transmitting control information to the multiple beam areas or the multiple beams; and a control unit controlling transmission of the downlink control signal based on the signal transmitting control information.
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公开(公告)号：US11812479B2
公开(公告)日：2023-11-07
申请号：US17517769
申请日：2021-11-03
Inventor： Ji Soo Park , Il Gyu Kim , Hee Sang Chung , Yong Seouk Choi , Jun Hyeong Kim , Go San Noh
CPC classification number: H04W74/0841 , H04W74/006 , H04W74/0866
Abstract: An operation method of a terminal in a communication system may include: receiving, from a base station, primary RA configuration information for a primary RA procedure; receiving, from the base station, secondary RA configuration information for a secondary RA procedure; transmitting a primary RA preamble to the base station by using a primary RA resource indicated by the primary RA configuration information; receiving, from the base station, secondary RA indication information in response to the primary RA preamble, the secondary RA indication information indicating to perform the secondary RA procedure instead of the primary RA procedure; and transmitting a secondary RA preamble to the base station by using a secondary RA resource indicated by the secondary RA configuration information.
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