US 12,317,331 B2
Method and apparatus for communication in network having asymmetric uplink and downlink
Sung Hyun Moon, Daejeon (KR); Cheul Soon Kim, Daejeon (KR); and Jung Hoon Lee, Daejeon (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed by ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed on Jun. 29, 2022, as Appl. No. 17/852,510.
Claims priority of application No. 10-2021-0086117 (KR), filed on Jun. 30, 2021; application No. 10-2021-0124876 (KR), filed on Sep. 17, 2021; application No. 10-2021-0176787 (KR), filed on Dec. 10, 2021; and application No. 10-2022-0071500 (KR), filed on Jun. 13, 2022.
Prior Publication US 2023/0011025 A1, Jan. 12, 2023
Int. Cl. H04W 74/08 (2024.01); H04W 74/0833 (2024.01)
CPC H04W 74/0833 (2013.01) 20 Claims
OG exemplary drawing
 
1. A method of a terminal, comprising:
receiving first physical random access channel (PRACH) configuration information from a base station;
identifying first PRACH resources based on the first PRACH configuration information;
selecting M1 PRACH resources from among the first PRACH resources, wherein M1 is a natural number greater than 1; and
repeatedly transmitting a preamble to the base station by M1 times through the selected M1 PRACH resources in a first power ramping step,
wherein the M1 PRACH resources are selected by the terminal according to a predefined rule, the preamble is repeatedly transmitted by M1 times with a first transmission power in the first power ramping step, and the M1 PRACH resources are managed by a single power ramping counter.