公开(公告)号：US20210051731A1

公开(公告)日：2021-02-18

申请号：US16993480

申请日：2020-08-14

Applicant: LG Electronics Inc.

Inventor： Jeongsu LEE ,  Hyunsoo KO

IPC: H04W74/08 ,  H04L12/24 ,  H04L1/08 ,  H04W52/36

Abstract: A method of transmitting and receiving a signal for a random access channel (RACH) procedure by a user equipment (UE) in a wireless communication system is disclosed. The method includes transmitting a message A including a physical random access channel (PRACH) and a physical uplink shared channel (PUSCH), and receiving a message B related to contention resolution in response to the message A. Transmission power for a retransmission of the message A is configured based on that a counter value related to the transmission power is incremented or maintained, the counter value is maintained based on that a transmission spatial filter related to the PRACH is changed for the retransmission of the message A, and the counter value is used for configuring the transmission power based on that the PRACH and the PUSCH are transmitted via the message A.

公开(公告)号：US20200092916A1

公开(公告)日：2020-03-19

申请号：US16064986

申请日：2018-05-18

Applicant: LG ELECTRONICS INC.

Inventor： Jeongsu LEE ,  Eunsun KIM ,  Hyunsoo KO ,  Kijun KIM ,  Sukhyon YOON

IPC: H04W74/08 ,  H04W72/04 ,  H04L5/00

Abstract: A method of transmitting and receiving a random access channel is proposed. In particular, the method includes receiving information on a specific bandwidth for transmitting a RACH preamble and information on the number of RACH frequency resources allocated in the specific bandwidth, and transmitting the RACH preamble over at least one RACH frequency resource among a plurality of RACH frequency resources allocated by the number of the RACH frequency resources in the specific bandwidth, wherein the specific bandwidth is configured as a portion of an entire system bandwidth.