US 12,302,410 B2
Transmission over a random access channel
Yi Wang, Beijing (CN); Feifei Sun, Beijing (CN); Jingxing Fu, Beijing (CN); and Qi Xiong, Beijing (CN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/764,964
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Sep. 29, 2020, PCT No. PCT/KR2020/013422
§ 371(c)(1), (2) Date Mar. 29, 2022,
PCT Pub. No. WO2021/060958, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 201910930526.2 (CN), filed on Sep. 29, 2019; and application No. 201911082950.2 (CN), filed on Nov. 7, 2019.
Prior Publication US 2022/0377813 A1, Nov. 24, 2022
Int. Cl. H04W 74/0833 (2024.01); H04L 1/1812 (2023.01); H04W 72/0453 (2023.01); H04W 72/23 (2023.01); H04W 74/08 (2009.01)
CPC H04W 74/0841 (2013.01) [H04L 1/1812 (2013.01); H04W 72/0453 (2013.01); H04W 72/23 (2023.01); H04W 74/0866 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A terminal operating in a shared spectrum channel in a communication system, the terminal comprising:
a transceiver; and
a controller configured to:
receive, from a base station, configuration information for a physical random access channel (PRACH);
in case that the configuration information for the PRACH includes a first parameter, transmit, to the base station, a PRACH based on a first sequence length of the PRACH, a frequency offset of a first PRACH transmission occasion in frequency domain with respect to a physical resource block with index 0 of an uplink bandwidth part (BWP), a start of a first set of resource blocks (RBs) associated with the first PRACH transmission occasion, and a start of a second set of RBs associated with a second PRACH transmission occasion; and
in case that the configuration information for the PRACH does not include the first parameter, transmit, to the base station, the PRACH based on a second sequence length of the PRACH, the frequency offset of the first PRACH transmission occasion in frequency domain with respect to the physical resource block with index 0 of the uplink BWP, and a number of RBs occupied.