US 12,408,128 B2
Method for grant free uplink transmission, user equipment and base station device
Qi Xiong, Beijing (CN); Bin Yu, Beijing (CN); and Chen Qian, Beijing (CN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on May 20, 2024, as Appl. No. 18/668,830.
Application 18/668,830 is a continuation of application No. 18/185,054, filed on Mar. 16, 2023, granted, now 11,991,754.
Application 18/185,054 is a continuation of application No. 17/052,959, granted, now 11,611,996, issued on Mar. 21, 2023, previously published as PCT/KR2019/005119, filed on Apr. 29, 2019.
Claims priority of application No. 201810444554.9 (CN), filed on May 10, 2018; application No. 201810481214.3 (CN), filed on May 18, 2018; and application No. 201811642884.5 (CN), filed on Dec. 29, 2018.
Prior Publication US 2024/0314848 A1, Sep. 19, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/0833 (2024.01); H04W 56/00 (2009.01); H04W 74/00 (2009.01); H04W 74/08 (2009.01)
CPC H04W 74/0833 (2013.01) [H04W 56/001 (2013.01); H04W 74/004 (2013.01); H04W 74/006 (2013.01); H04W 74/0891 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a wireless communication, the method comprising:
identifying whether physical random access channel (PRACH) occasions for a 4-step random access type are shared with a 2-step random access type; and
based on the PRACH occasions for the 4-step random access type being shared with the 2-step random access type, transmitting, to a base station, a message A including a preamble based on a first configuration of PRACH occasions,
wherein, based on the PRACH occasions for the 4-step random access type being shared with the 2-step random access type, an index of the preamble associated with a synchronization signal block (SSB) is determined based on a starting preamble index and a total number of preambles for the 4-step random access type.