公开(公告)号：US10966185B2

公开(公告)日：2021-03-30

申请号：US14842677

申请日：2015-09-01

Applicant: LG ELECTRONICS INC.

Inventor： Sung Jun Park ,  Seung June Yl ,  Young Dae Lee ,  Sung Duck Chun

IPC: H04W72/04 ,  H04W56/00 ,  H04L1/18

Abstract: A method for a user equipment (UE) to generate a transmission is provided. In this method, a UE starts a time alignment timer when a time alignment command is received. The UE receives an uplink grant; and generates an initial transmission or a retransmission according to the uplink grant only when the time alignment timer is running upon receiving the uplink grant. In addition, the uplink grant is received through a Physical Downlink Control Channel (PDCCH) indicated by a Cell Radio Network Temporary Identifier (C-RNTI) of the UE.