US 11,930,526 B2
Method and apparatus for transmitting data using random access procedure in communication system
Ok Sun Park, Daejeon (KR); Seok Ki Kim, Daejeon (KR); Gi Yoon Park, Daejeon (KR); Eun Jeong Shin, Daejeon (KR); Jae Sheung Shin, Sejong-si (KR); and Jin Ho Choi, Vic (AU)
Assigned to ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed by ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed on Jun. 22, 2021, as Appl. No. 17/354,144.
Claims priority of application No. 10-2020-0112941 (KR), filed on Sep. 4, 2020.
Prior Publication US 2022/0078840 A1, Mar. 10, 2022
Int. Cl. H04W 74/00 (2009.01); H04W 72/21 (2023.01); H04W 74/08 (2009.01)
CPC H04W 74/004 (2013.01) [H04W 72/21 (2023.01); H04W 74/0833 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An operation method of a terminal in a communication system, the operation method comprising:
transmitting a first message A (MsgA) including a random access (RA) preamble #i and a payload to a base station;
receiving, from the base station, a message B (MsgB) including information indicating an RA preamble #k; and
transmitting a second MsgA including the RA preamble #k and data to the base station in a preamble reservation period,
wherein each of i and k is a natural number, and
wherein when i is equal to k, the data is transmitted on a physical uplink shared channel (PUSCH) occasion associated with the RA preamble #i selected by the terminal.