Patent ID: 10701720

Abstract:
A user equipment receives a first multiple access (MA) time resource information indicating static MA time resources in which uplink (UL) grant-free UL transmission is permitted among time resources corresponding to a fixed time length Twindow. If UL data (hereafter referred to as first UL data) to be transmitted in one (hereafter referred to as a first static MA time resource) of the static MA time resources exists, the UE transmits the first UL data in the first static MA time resource by means of a predetermined frequency resource. The UE can monitor downlink control information (hereafter referred to as first DCI) in non-static MA time resources, which are not the static MA time resources, among the time resources, and, if the first DCI is received, can transmit UL data (hereafter referred to as second UL data) to the first DCI or receive DL data.